Journal articles: 'Soil fertility. Soil microbiology. Soil inoculation'

1

Sarkodee-Addo, Elsie, Chihiro Tokiwa, Patrick Bonney, Daniel Asiamah Aboagye, Alex Yeboah, Samuel Oppong Abebrese, Ralph Bam, Eric Kwesi Nartey, Shin Okazaki, and Michiko Yasuda. "Biofertilizer Activity of Azospirillum sp. B510 on the Rice Productivity in Ghana." Microorganisms 9, no. 9 (September 21, 2021): 2000. http://dx.doi.org/10.3390/microorganisms9092000.

Full text

Abstract:

Rice production in Ghana has become unsustainable due to the extremely nutrient-poor soils. It is caused by inadequate soil fertility management, including the inefficient application of fertilizers. A practical solution could be the biofertilizers, Azospirillum sp. B510. We performed field trials in Ghana and Japan to compare the effects of B510 colonization on selected Ghanaian rice varieties grown. The B510 inoculation significantly enhanced the rice cultivars’ growth and yield. The phenotypic characteristics observed in rice varieties Exbaika, Ex-Boako, AgraRice, and Amankwatia were mainly short length and high tillering capacity. These features are attributed to the host plant (cv. Nipponbare), from which the strain B510 was isolated. Furthermore, Azospirillum species has been identified as the dominant colonizing bacterium of rice rhizosphere across a diverse range of agroecologies in all major rice-growing regions in Ghana. Our results suggest that the utilization of B510 as a bio-fertilizer presents a promising way to improve rice growth, enhance soil fertility, and sustain rice productivity in Ghana.

APA, Harvard, Vancouver, ISO, and other styles

2

Saidi, Samira, Hafsa Cherif-Silini, Ali Chenari Bouket, Allaoua Silini, Manal Eshelli, Lenka Luptakova, Faizah N. Alenezi, and Lassaad Belbahri. "Improvement of Medicago sativa Crops Productivity by the Co-inoculation of Sinorhizobium meliloti–Actinobacteria Under Salt Stress." Current Microbiology 78, no. 4 (March 1, 2021): 1344–57. http://dx.doi.org/10.1007/s00284-021-02394-z.

Full text

Abstract:

AbstractBiotic and abiotic stresses are severely limiting plant production and productivity. Of notable importance is salt stress that not only limits plant growth and survival, but affects the soil fertility and threatens agricultural ecosystems sustainability. The problem is exacerbated in fragile arid and semi-arid areas where high evaporation, low precipitation and the use of salty water for irrigation is accelerating soil salinization. Legumes, considered very nutritious foods for people and providing essential nutrients for ecosystems are a fundamental element of sustainable agriculture. They can restore soil health by their ability to fix nitrogen in a symbiotic interaction with the rhizobia of the soil. However, salt stress is severely limiting productivity and nitrogen fixation ability in legumes. Plant growth-promoting rhizobacteria (PGPR) and mainly actinobacteria promote plant growth by producing phytohormones, siderophores, antibiotics and antifungal compounds, solubilizing phosphate and providing antagonism to phytopathogenic microorganisms. In addition, actinobacteria have beneficial effects on nodulation and growth of legumes. In this study, actinobacteria isolated from different niches and having PGP activities were used in co-inoculation experiments with rhizobia in Medicago sativa plants rhizosphere submitted to salt stress. The results indicate that drought- and salinity-tolerant Actinobacteria with multiple PGP traits can potentially increase alfalfa growth under saline conditions, in the presence or absence of symbiotic rhizobial bacteria. Actinobacteria discovered in this study can, therefore, be suitable biofertilizers in the formulation of agricultural products improving plant development, health and productivity in saline soils, a necessary alternative for modern agriculture and sustainable development.

APA, Harvard, Vancouver, ISO, and other styles

3

Singh, A. K., C. Hamel, R. M. DePauw, and R. E. Knox. "Genetic variability in arbuscular mycorrhizal fungi compatibility supports the selection of durum wheat genotypes for enhancing soil ecological services and cropping systems in Canada." Canadian Journal of Microbiology 58, no. 3 (March 2012): 293–302. http://dx.doi.org/10.1139/w11-140.

Full text

Abstract:

Crop nutrient- and water-use efficiency could be improved by using crop varieties highly compatible with arbuscular mycorrhizal fungi (AMF). Two greenhouse experiments demonstrated the presence of genetic variability for this trait in modern durum wheat ( Triticum turgidum L. var. durum Desf.) germplasm. Among the five cultivars tested, ‘AC Morse’ had consistently low levels of AM root colonization and DT710 had consistently high levels of AM root colonization, whereas ‘Commander’, which had the highest colonization levels under low soil fertility conditions, developed poor colonization levels under medium fertility level. The presence of genetic variability in durum wheat compatibility with AMF was further evidenced by significant genotype × inoculation interaction effects in grain and straw biomass production; grain P, straw P, and straw K concentrations under medium soil fertility level; and straw K and grain Fe concentrations at low soil fertility. Mycorrhizal dependency was an undesirable trait of ‘Mongibello’, which showed poor growth and nutrient balance in the absence of AMF. An AMF-mediated reduction in grain Cd under low soil fertility indicated that breeding durum wheat for compatibility with AMF could help reduce grain Cd concentration in durum wheat. Durum wheat genotypes should be selected for compatibility with AMF rather than for mycorrhizal dependency.

APA, Harvard, Vancouver, ISO, and other styles

4

Pellegrini, Marika, Daniela M. Spera, Claudia Ercole, and Maddalena Del Gallo. "Allium cepa L. Inoculation with a Consortium of Plant Growth-Promoting Bacteria: Effects on Plants, Soil, and the Autochthonous Microbial Community." Microorganisms 9, no. 3 (March 19, 2021): 639. http://dx.doi.org/10.3390/microorganisms9030639.

Full text

Abstract:

The present work was aimed at investigating the effects of a four bacterial strain consortium—Azospirillum brasilense, Gluconacetobacter diazotrophicus, Herbaspirillum seropedicae, and Burkholderia ambifaria—on Allium cepa L. and on soil health. The bacterial consortium was inoculated on seeds of two different onion varieties; inoculated and Control seeds (treated with autoclaved inoculum) were sown in an open-field and followed until harvest. Plant growth development parameters, as well as soil physico–chemical and molecular profiles (DNA extraction and 16S community sequencing on the Mi-Seq Illumina platform), were investigated. The results showed a positive influence of bacterial application on plant growth, with increased plant height (+18%), total chlorophylls (+42%), crop yields (+13%), and bulb dry matter (+3%) with respect to the Control. The differences between Control and treatments were also underlined in the bulb extracts in terms of total phenolic contents (+25%) and antioxidant activities (+20%). Soil fertility and microbial community structure and diversity were also positively affected by the bacterial inoculum. At harvest, the soil with the presence of the bacterial consortium showed an increase in total organic carbon, organic matter, and available phosphorus, as well as higher concentrations of nutrients than the Control. The ecological indexes calculated from the molecular profiles showed that community diversity was positively affected by the bacterial treatment. The present work showed the effective use of plant growth-promoting bacteria as a valid fertilization strategy to improve yield in productive landscapes whilst safeguarding soil biodiversity.

APA, Harvard, Vancouver, ISO, and other styles

5

Solaiman, M. Z., and H. Hirata. "Glomus -wetland rice mycorrhizas influenced by nursery inoculation techniques under high fertility soil conditions." Biology and Fertility of Soils 27, no. 1 (May 22, 1998): 92–96. http://dx.doi.org/10.1007/s003740050405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Requena, Natalia, Estefania Perez-Solis, Concepción Azcón-Aguilar, Peter Jeffries, and José-Miguel Barea. "Management of Indigenous Plant-Microbe Symbioses Aids Restoration of Desertified Ecosystems." Applied and Environmental Microbiology 67, no. 2 (February 1, 2001): 495–98. http://dx.doi.org/10.1128/aem.67.2.495-498.2001.

Full text

Abstract:

ABSTRACT Disturbance of natural plant communities is the first visible indication of a desertification process, but damage to physical, chemical, and biological soil properties is known to occur simultaneously. Such soil degradation limits reestablishment of the natural plant cover. In particular, desertification causes disturbance of plant-microbe symbioses which are a critical ecological factor in helping further plant growth in degraded ecosystems. Here we demonstrate, in two long-term experiments in a desertified Mediterranean ecosystem, that inoculation with indigenous arbuscular mycorrhizal fungi and with rhizobial nitrogen-fixing bacteria not only enhanced the establishment of key plant species but also increased soil fertility and quality. The dual symbiosis increased the soil nitrogen (N) content, organic matter, and hydrostable soil aggregates and enhanced N transfer from N-fixing to nonfixing species associated within the natural succession. We conclude that the introduction of target indigenous species of plants associated with a managed community of microbial symbionts is a successful biotechnological tool to aid the recovery of desertified ecosystems.

APA, Harvard, Vancouver, ISO, and other styles

7

Shi, Songmei, Xie Luo, Xingshui Dong, Yuling Qiu, Chenyang Xu, and Xinhua He. "Arbuscular Mycorrhization Enhances Nitrogen, Phosphorus and Potassium Accumulation in Vicia faba by Modulating Soil Nutrient Balance under Elevated CO2." Journal of Fungi 7, no. 5 (May 5, 2021): 361. http://dx.doi.org/10.3390/jof7050361.

Full text

Abstract:

Effects of arbuscular mycorrhizal fungi (AMF), elevated carbon dioxide (eCO2), and their interaction on nutrient accumulation of leguminous plants and soil fertility is unknown. Plant growth, concentrations of tissue nitrogen (N), phosphorus (P), and potassium (K) in 12-week-old nodulated faba bean (Vicia faba, inoculated with Rhizobium leguminosarum bv. NM353), and nutrient use efficiency were thus assessed under ambient CO2 (410/460 ppm, daytime, 07:00 a.m.–19:00 p.m./nighttime, 19:00 p.m.–07:00 a.m.) and eCO2 (550/610 ppm) for 12 weeks with or without AM fungus of Funneliformis mosseae inoculation. eCO2 favored AMF root colonization and nodule biomass production. eCO2 significantly decreased shoot N, P and K concentrations, but generally increased tissue N, P and K accumulation and their use efficiency with an increased biomass production. Meanwhile, eCO2 enhanced C allocation into soil but showed no effects on soil available N, P, and K, while AM symbiosis increased accumulation of C, N, P, and K in both plant and soil though increased soil nutrient uptake under eCO2. Moreover, plant acquisition of soil NO3−–N and NH4+–N respond differently to AMF and eCO2 treatments. As a result, the interaction between AM symbiosis and eCO2 did improve plant C accumulation and soil N, P, and K uptake, and an alternative fertilization for legume plantation should be therefore taken under upcoming atmosphere CO2 rising. Future eCO2 studies should employ multiple AMF species, with other beneficial fungal or bacterial species, to test their interactive effects on plant performance and soil nutrient availability in the field, under other global change events including warming and drought.

APA, Harvard, Vancouver, ISO, and other styles

8

Thies, Janice E., B. Ben Bohlool, and Paul W. Singleton. "Environmental effects on competition for nodule occupancy between introduced and indigenous rhizobia and among introduced strains." Canadian Journal of Microbiology 38, no. 6 (June 1, 1992): 493–500. http://dx.doi.org/10.1139/m92-081.

Full text

Abstract:

Understanding the impact of environmental variables on interstrain competition is important to ensure the successful use of rhizobial inoculant. In eight inoculation trials conducted at five diverse sites on Maui, Hawaii, equal numbers of three serologically distinct strains of effective, homologous rhizobia in a peat-based inoculant were applied to seeds of soybean, bush bean, cowpea, lima bean, peanut, leucaena, clover, and tinga pea. We studied the influence of environmental variables on interstrain competition between applied and indigenous rhizobia and among the three strains comprising the inoculum. Although temperature and soil fertility were correlated with nodule occupancy by inoculant strains in a few cases, the most significant environmental variable controlling their competitive success was the size of the indigenous rhizobial population. Nodule occupancy was best described (r2 = 0.51, p < 0.001) by the equation y = 97.88 − 15.03(log10(x + 1)), where y is percent nodule occupancy by inoculant rhizobia and x is the most probable number of indigenous rhizobia per gram soil. For each legume, one of the three inoculant strains was a poor competitor across sites. Competition between the other two strains varied between sites, but was infrequently related to environmental variables. Results indicated that competitive strains could be selected that perform well across a range of environments. Key words: competition, rhizobial ecology, inoculation response, competitiveness index.

APA, Harvard, Vancouver, ISO, and other styles

9

Matics, Helena. "History of soil fertility enhancement with inoculation methods." Journal of Central European Agriculture 16, no. 2 (2015): 231–48. http://dx.doi.org/10.5513/jcea01/16.2.1614.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Ullah, Muhammad Arshad, Nazir Hussain, Helge Schmeisky, and Muhammad Rasheed. "Enhancing Soil Fertility through Intercropping, Inoculation and Fertilizer." Biological Sciences - PJSIR 59, no. 1 (April 26, 2016): 1–5. http://dx.doi.org/10.52763/pjsir.biol.sci.59.1.2016.1.5.

Full text

Abstract:

The present study was conducted to investigate the effects of intercropping grass (Panicummaximum) and legumes (Vicia sativa and cowpeas) alone or coupled with inoculation or fertilizer on soilfertility. The study comprised of two field experiments conducted under rain fed conditions for two years(June, 2005 to September, 2007) at National Agriculture Research Centre, Islamabad, Pakistan. In oneexperiment intercropping (33, 50 and 67%) of grass and legumes alone as well as coupled with seedinoculation were studied while, same set of treatments was combined with fertilizer application at the ratesof 25, 75 and 50 kg/ha (N, P2O5 and K2O) in the second experiment. Total soil N increased by 0.008% dueto symbiotic fixation in addition to plant uptake under best treatment when compared with grass alonewhile, soil organic matter increased by 0.19%. After crop harvest soil N content was determined to behigher in all the treatments of the experiment compared with growing grass alone. Legumes caused rhizobialN fixation that caused an increase in soil N. Similarly, intercropping and inoculation increased this soilcharacteristic that was found to be non-significant in the first crop but later on became significant, especiallywhen intercropping of grass with legumes after seed inoculation was investigated or fertilizer wassupplemented to the crops. Thus, not only grass used the symbiotically fixed N by companion legumesbut also enhanced the soil N content. The effect of fertilizer was not measurable statistically in case of soilorganic matter. This parameter, in general, was not affected significantly when assessed after first cropharvest. Nevertheless, legumes alone or intercropped within grass increased this important soil constituent.Inoculation proved further beneficial in this regard but combination of intercropping (especially 67%)either with seed inoculation or application of fertilizer was found as the best technique for increasing soilorganic matter.

APA, Harvard, Vancouver, ISO, and other styles

11

Verma, Balwant, and M. Sudhakara Reddy. "Biochar augmentation improves ectomycorrhizal colonisation, plant growth and soil fertility." Soil Research 58, no. 7 (2020): 673. http://dx.doi.org/10.1071/sr20067.

Full text

Abstract:

Synergistic effects of ectomycorrhizal (ECM) fungal inoculation and biochar augmentation on plant growth, nutrient uptake and soil enzymes were investigated. A nursery experiment was conducted to assess the influence of ECM fungi (Suillus indicus and S. sibiricus) and biochar amendment (2% v/v) on the growth of Pinus wallichiana seedlings. Mycorrhizal colonisation significantly increased in biochar-amended soil compared to without biochar. Inoculation with ECM fungi in biochar-amended soils significantly increased the growth, biomass and phosphorus and nitrogen uptake of P. wallichiana seedlings compared with control as well as without biochar. The physicochemical properties of the soil were improved due to biochar augmentation and ECM inoculation. Activities of soil enzymes such as acid phosphatase, urease, dehydrogenase and protease were significantly increased in biochar-amended soil along with ECM fungal inoculation. These results suggest that combined use of ECM fungal inoculation and biochar amendment had a positive impact on growth, nutrient uptake and mycorrhizal colonisation of P. wallichiana seedlings. Also, biochar prepared from pine needles has potential for enhancing plant growth and soil fertility.

APA, Harvard, Vancouver, ISO, and other styles

12

Suzuki, C., T. Kunito, T. Aono, C. T. Liu, and H. Oyaizu. "Microbial indices of soil fertility." Journal of Applied Microbiology 98, no. 5 (May 2005): 1062–74. http://dx.doi.org/10.1111/j.1365-2672.2004.02529.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Chaparro, Jacqueline M., Amy M. Sheflin, Daniel K. Manter, and Jorge M. Vivanco. "Manipulating the soil microbiome to increase soil health and plant fertility." Biology and Fertility of Soils 48, no. 5 (May 13, 2012): 489–99. http://dx.doi.org/10.1007/s00374-012-0691-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Waring, Bonnie G., Maria G. Gei, Lisa Rosenthal, and Jennifer S. Powers. "Plant–microbe interactions along a gradient of soil fertility in tropical dry forest." Journal of Tropical Ecology 32, no. 4 (June 13, 2016): 314–23. http://dx.doi.org/10.1017/s0266467416000286.

Full text

Abstract:

Abstract:Theoretical models predict that plant interactions with free-living soil microbes, pathogens and fungal symbionts are regulated by nutrient availability. Working along a steep natural gradient of soil fertility in a Costa Rican tropical dry forest, we examined how soil nutrients affect plant–microbe interactions using two complementary approaches. First, we measured mycorrhizal colonization of roots and soil P availability in 18 permanent plots spanning the soil fertility gradient. We measured root production, root colonization by mycorrhizal fungi, phosphatase activity and Bray P in each of 144 soil cores. Next, in a full-factorial manipulation of soil type and microbial community origin, tree seedlings of Albizia guachapele and Swietenia macrophylla were grown in sterilized high-, intermediate- and low-fertility soils paired with microbial inoculum from each soil type. Seedling growth, biomass allocation and root colonization by mycorrhizas were quantified after 2 mo. In the field, root colonization by mycorrhizal fungi was unrelated to soil phosphorus across a five-fold gradient of P availability. In the shadehouse, inoculation with soil microbes had either neutral or positive effects on plant growth, suggesting that positive effects of mycorrhizal symbionts outweighed negative effects of soil pathogens. The presence of soil microbes had a greater effect on plant biomass than variation in soil nutrient concentrations (although both effects were modest), and plant responses to mycorrhizal inoculation were not dependent on soil nutrients. Taken together, our results emphasize that soil microbial communities can influence plant growth and morphology independently of soil fertility.

APA, Harvard, Vancouver, ISO, and other styles

15

Ge, Tida, Yu Luo, and Bhupinder Pal Singh. "Resource stoichiometric and fertility in soil." Biology and Fertility of Soils 56, no. 8 (October 1, 2020): 1091–92. http://dx.doi.org/10.1007/s00374-020-01513-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Javeed, Hafiz Muhammad Rashad, Rafi Qamar, Atique ur Rehman, Mazhar Ali, Abdul Rehman, Muhammad Farooq, Shahid Ibni Zamir, et al. "Improvement in Soil Characteristics of Sandy Loam Soil and Grain Quality of Spring Maize by Using Phosphorus Solublizing Bacteria." Sustainability 11, no. 24 (December 10, 2019): 7049. http://dx.doi.org/10.3390/su11247049.

Full text

Abstract:

Unavailability of balanced nutrients in nutrient-deficient soils is the key reason in reduced yields of spring maize. After application to soil, most of the phosphorus (80–90%) is lost in the environment because of runoff losses and chemically bonding. So, this makes the phosphorus unavailable for plant use. However, soil microorganisms may provide a biological rescue system which is able to solubilize the soil-bound phosphorus (p). Keeping this in view, the present study is designed to meet the following objectives; (1) to improve physico-chemical properties of soil (e.g., soil water retention, soil enzyme activities), and (2) to improve growth and yield of spring maize (cv. Hybrid YSM-112) through the inoculation of phosphorus solubilization bacteria (PSB). A pot experiment was carried out with the following treatments; T1: control (uninoculated control, CT), T2: inoculation with PSB (Enterobacter sakazakii J129), T3: recommend level of NPK fertilizers (RNPK), T4: PSB + RNPK fertilizers, T5: rock phosphate (RP), T6: PSB + RP. Results showed that the addition of PSB together with RNPK improved the yield and yield-related characteristics of spring maize grown in sandy soil. Moreover, it also enhanced dry mater characteristics and maize grain quality. Soil fertility in the context of P-solubilization, soil organic acids, soil organic matter, enzyme activities, PSB colony, and rhizosphere moisture contents were significantly improved with PSB inoculation together with recommended dose of NPK fertilizers (RNPK) compared to PSB alone, rock phosphate (RP) alone, or PSB together with rock phosphate and control treatment. Maize digestibility attributes such as DM, CP, CF, EE (by 35%, 20%, 33%, and 28% respectively) and grain quality such as NPK, Mg, Ca, Fe, Mn, Cu, and Zn (by 88%, 92%, 71%, 68%, 78%, 90%, 83, 69%, 92%, 48%, and 90% respectively) were improved compared to control. In conclusion, improvement in maize crop yield and soil characteristics are more prominent and significant when RNPK is supplemented and inoculated. The present study suggests that PSB, together with RNPK, would improve the maize plant growth and soil fertility in sandy soil.

APA, Harvard, Vancouver, ISO, and other styles

17

Pang, Ziqin, Muhammad Tayyab, Chuibao Kong, Qiang Liu, Yueming Liu, Chaohua Hu, Jinwen Huang, et al. "Continuous Sugarcane Planting Negatively Impacts Soil Microbial Community Structure, Soil Fertility, and Sugarcane Agronomic Parameters." Microorganisms 9, no. 10 (September 23, 2021): 2008. http://dx.doi.org/10.3390/microorganisms9102008.

Full text

Abstract:

Continuous planting has a negative impact on sugarcane plant growth and reduces global sugarcane crop production, including in China. The response of soil bacteria, fungal, and arbuscular mycorrhizae (AM) fungal communities to continuous sugarcane cultivation has not been thoroughly documented. Using MiSeq sequencing technology, we analyzed soil samples from sugarcane fields with 1, 10, and 30 years of continuous cropping to see how monoculture time affected sugarcane yield, its rhizosphere soil characteristics and microbiota. The results showed that continuous sugarcane planting reduced sugarcane quality and yield. Continuous sugarcane planting for 30 years resulted in soil acidification, as well as C/N, alkali hydrolyzable nitrogen, organic matter, and total sulfur content significantly lower than in newly planted fields. Continuous sugarcane planting affected soil bacterial, fungal, and AM fungal communities, according to PCoA and ANOSIM analysis. Redundancy analysis (RDA) results showed that bacterial, fungal, and AM fungal community composition were strongly associated with soil properties and attributes, e.g., soil AN, OM, and TS were critical environmental factors in transforming the bacterial community. The LEfSe analysis revealed bacterial families (e.g., Gaiellaceae, Pseudomonadaceae, Micromonosporaceae, Nitrosomonadaceae, and Methyloligellaceae) were more prevalent in the newly planted field than in continuously cultivated fields (10 and 30 years), whereas Sphingomonadaceae, Coleofasciculaceae, and Oxyphotobacteria were depleted. Concerning fungal families, the newly planted field was more dominated than the continuously planted field (30 years) with Mrakiaceae and Ceratocystidaceae, whereas Piskurozymaceae, Trimorphomycetaceae, Lachnocladiaceae, and Stigmatodisc were significantly enriched in the continuously planted fields (10 and 30 years). Regarding AMF families, Diversisporaceae was considerably depleted in continuously planted fields (10 and 30 years) compared to the newly planted field. These changes in microbial composition may ultimately lead to a decrease in sugarcane yield and quality in the monoculture system, which provides a theoretical basis for the obstruction mechanism of the continuous sugarcane planting system. However, continuous planting obstacles remain uncertain and further need to be coupled with root exudates, soil metabolomics, proteomics, nematodes, and other exploratory methods.

APA, Harvard, Vancouver, ISO, and other styles

18

Clafardini, G., G. Marinelli, and R. Missich. "Soil biomass of Bradyrhizobium japonicum inoculated via irrigation water." Canadian Journal of Microbiology 38, no. 6 (June 1, 1992): 584–87. http://dx.doi.org/10.1139/m92-096.

Full text

Abstract:

Soybean (Glycine max (L.) Merr.), when grown in soil poor in Bradyrhizobium japonicum, shows low nitrogen-fixation activity as a result of the small number of nodules produced. In an attempt to increase the biomass of the symbiont in the soil and nodulation in soybean cv. Hodgson, a study was performed using B. japonicum USDA 122 cover inoculated with the irrigation water at the time of sowing or at the three-node (V3 phenophase) stage. The B. japonicum cover inoculation performed alone or in combination with traditional seed inoculation with peat bacteria inoculum (control) resulted in an 8-fold average increase of symbiont biomass in the soil. Cover inoculation at the V3 stage combined with seed inoculation with peat inoculum tripled the number of nodules per plant, increasing nitrogen fixation in the plant during pod filling (R6 phenophase). The ureide concentration in the soybean decreased with plant age. Cover inoculation at the V3 stage combined with seed inoculation with peat inoculum significantly increased the ureide concentration in leaves and stalks of plants in the R6 stage. The total nitrogen concentration in leaves and stalks was also always greater in the plants that were both seed and cover inoculated. Cover inoculation is a new agricultural technique that can increase nitrogen fixation and bean yield per hectare of soybean without recourse to chemical nitrogen fertilizers. Key words: Bradyrhizobium japonicum, inoculation, soil biomass.

APA, Harvard, Vancouver, ISO, and other styles

19

Kim, Yiseul, Sang Yoon Kim, Ju Hee An, Mee Kyung Sang, Hang-Yeon Weon, and Jaekyeong Song. "Changes in Resident Soil Bacterial Communities in Response to Inoculation of Soil with Beneficial Bacillus spp." Microbiology and Biotechnology Letters 46, no. 3 (September 28, 2018): 253–60. http://dx.doi.org/10.4014/mbl.1807.07027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Galindo, Fernando Shintate, Marcelo Carvalho Minhoto Teixeira Filho, Salatiér Buzetti, José Mateus Kondo Santini, João Leonardo Miranda Bellotte, Mariana Gaioto Ziolkowski Ludkiewicz, Marcelo Andreotti, Vinicius Martins Silva, and Cássia Maria de Paula Garcia. "Chemical soil attributes after wheat cropping under nitrogen fertilization and inoculation with Azospirillum brasilense." Semina: Ciências Agrárias 38, no. 2 (May 2, 2017): 659. http://dx.doi.org/10.5433/1679-0359.2017v38n2p659.

Full text

Abstract:

Azospirillum brasilense plays an important role in biological nitrogen fixation (BNF) in grasses. However, further studies are needed to define how much mineral N can be applied while simultaneously maintaining BNF contribution and maximizing crop yield and to determine the impact of these practices on soil fertility. Thus, we aimed to investigate the effect of inoculation with A. brasilense, in conjunction with varying N doses and sources in a Cerrado soil, on soil chemical attributes after two years of irrigated wheat production. The experiment was initiated in Selvíria - MS under no-tillage production in an Oxisol in 2014 and 2015. The experimental design was a randomized block design with four replications, and treatments were arranged in a 2 x 5 x 2 factorial arrangement as follows: two N sources (urea and Super N - urea with inhibitor of the enzyme urease NBPT (N - (n-butyl thiophosphoric triamide))), five N rates (0, 50, 100, 150 and 200 kg ha-1), and with or without seed inoculation with A. brasilense. The increase in N rates did not influence the chemical soil attributes. Super N acidified the soil more compared to urea. A. brasilense inoculation reduced the effect of soil acidification in intensive irrigated wheat cultivation; however, the base extraction was higher, resulting in a lower soil CEC after cultivation with inoculation. Therefore, the cultivation of wheat inoculated with A. brasilense was not harmful to soil fertility because it did not reduce the base saturation and organic matter content (P, K, Ca, Mg, and S).

APA, Harvard, Vancouver, ISO, and other styles

21

Hindersah, Reginawanti, Rara Rahmantika Risanti, Ibnu Haikal, Yuliati Mahfud, Nenny Nurlaeny, and Meddy Rachmadi. "Effect of Azotobacter Application Method on Yield of Soybean (Glycine max (L.) Merill) on Dry Land." Agric 31, no. 2 (January 20, 2020): 136–45. http://dx.doi.org/10.24246/agric.2019.v31.i2.p136-145.

Full text

Abstract:

Biofertilizer which contain rhizobacteria Azotobacter increase soil fertility and improve plant growth through nitrogen fixation and phytohormone production. The objective of this study was to compare the responses of soybean (Glycine max (L.) Merill) plants in dry land after the application of several Azotobacter inoculation methods. Field experiments were carried out with a randomized block design consisting of five treatments with five replicates each. The treatments were seed inoculation, soil treatment before planting, soil treatment after planting and plant dressing. Plant inoculation with Azotobacter treated with half of recommended dosage urea while the control plant received recommended dose urea. The experimental results showed that all application methods did not affect soybean production, number of nodules, Azotobacter populations in the rhizosphere and N total soil; but Azotobacter inoculation through leaves increased N uptake and weight of 100 soybean seeds.

APA, Harvard, Vancouver, ISO, and other styles

22

Jabborova, Dilfuza, Stephan Wirth, Annapurna Kannepalli, Abdujalil Narimanov, Said Desouky, Kakhramon Davranov, R. Z. Sayyed, et al. "Co-Inoculation of Rhizobacteria and Biochar Application Improves Growth and Nutrientsin Soybean and Enriches Soil Nutrients and Enzymes." Agronomy 10, no. 8 (August 6, 2020): 1142. http://dx.doi.org/10.3390/agronomy10081142.

Full text

Abstract:

Gradual depletion in soil nutrients has affected soil fertility, soil nutrients, and the activities of soil enzymes. The applications of multifarious rhizobacteria can help to overcome these issues, however, the effect of co-inoculation of plant-growth promoting rhizobacteria (PGPR) and biochar on growth andnutrient levelsin soybean and on the level of soil nutrients and enzymes needs in-depth study. The present study aimed to evaluate the effect of co-inoculation of multifarious Bradyrhizobium japonicum USDA 110 and Pseudomonas putida TSAU1 and different levels (1 and 3%) of biochar on growth parameters and nutrient levelsin soybean and on the level of soil nutrients and enzymes. Effect of co-inoculation of rhizobacteria and biochar (1 and 3%) on the plant growth parameters and soil biochemicals were studied in pot assay experiments under greenhouse conditions. Both produced good amounts of indole-acetic acid; (22 and 16 µg mL−1), siderophores (79 and 87%SU), and phosphate solubilization (0.89 and 1.02 99 g mL−1). Co-inoculation of B. japonicum with P. putida and 3% biochar significantly improved the growth and nutrient content ofsoybean and the level of nutrients and enzymes in the soil, thus making the soil more fertile to support crop yield. The results of this research provide the basis of sustainable and chemical-free farming for improved yields and nutrients in soybean and improvement in soil biochemical properties.

APA, Harvard, Vancouver, ISO, and other styles

23

Peng, Yi, Yisheng Duan, Weige Huo, Minggang Xu, Xueyun Yang, Xihe Wang, Boren Wang, Martin S. A. Blackwell, and Gu Feng. "Soil microbial biomass phosphorus can serve as an index to reflect soil phosphorus fertility." Biology and Fertility of Soils 57, no. 5 (April 10, 2021): 657–69. http://dx.doi.org/10.1007/s00374-021-01559-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Balota, Elcio Liborio, Oswaldo Machineski, Priscila Viviane Truber, Alexandra Scherer, and Fabio Suano de Souza. "Physic nut plants present high mycorrhizal dependency under conditions of low phosphate availability." Brazilian Journal of Plant Physiology 23, no. 1 (2011): 33–44. http://dx.doi.org/10.1590/s1677-04202011000100006.

Full text

Abstract:

The physic nut (Jatropha curcas L.) is a perennial tree that occurs naturally in the tropical and subtropical regions of Brazil. Fruits of physic nut present an oil content of 28% on a dry weight basis. Although the plant has adapted to diverse soil conditions such as low fertility, the correction of soil acidity and the addition of fertilizer are essential for highly productive plants. Thus, the response of the physic nut to different soil phosphorus levels (P) and arbuscular mycorrhizal fungi (AMF) inoculation must be characterized. Hence, the objective of the present study was to evaluate the response of physic nut seedlings to arbuscular mycorrhizal fungi (AMF) inoculation at different levels of soil P. Experiment was carried out in a greenhouse encompassing AMF treatments (inoculation with Gigaspora margarita or Glomus clarum, and the non inoculated controls), and phosphorus treatments (0, 25, 50, 100, 200 and 400 mg kg-1 added to soil). At low soil P levels, arbuscular mycorrhizal fungi inoculation had a significant positive effect on plant growth, shoot and root dry matter content, plant height, number of leaves, total leaf area, leaf area per leaf and the Dickson quality index. The root:shoot ratio and the leaf area ratio were also affected by mycorrhizal inoculation and the level of P addition. Physic nut plants exhibited high mycorrhizal dependency at soil P additions up to 50 mg kg-1.

APA, Harvard, Vancouver, ISO, and other styles

25

Lombardo, Sara, Aurelio Scavo, Cristina Abbate, Gaetano Pandino, Bruno Parisi, and Giovanni Mauromicale. "Mycorrhizal Inoculation Improves Mineral Content of Organic Potatoes Grown under Calcareous Soil." Agriculture 11, no. 4 (April 8, 2021): 333. http://dx.doi.org/10.3390/agriculture11040333.

Full text

Abstract:

Soil mycorrhization can play an important role for the qualitative improvement of organically grown “early” potato tubers especially in low fertility soils (such as calcareous ones), by ameliorating plant uptake of limiting mineral nutrients in the soil. Hence, the objective of the present research was to elucidate the impact of soil mycorrhization on the tuber minerals content of three potato cultivars organically grown in two locations with different soil characteristics. Our data revealed the keyrole of soil mycorrhization on the tuber accumulation of Na, Cu, Mn, and P and on reducing the Na/K ratio, although the effects of soil mycorrhization were cultivar- and location-dependent. Accordingly, soil mycorrhization was able to enhance the levels of K and Ca in ‘Arizona’ and that of Mn in ‘Universa’, while it increased the Zn amount in all the cultivars under study. Additionally, soil mycorrhization significantly improved the levels of Cu and Mn in tubers in the location characterized by an initial higher soil level of these micro-minerals. This work highlighted the possibility to fortify organic early potato tubers, in terms of macro- and micro-mineral elements, by applying an eco-sustainable tool such as soil mycorrhization, provided that specific consideration is given to cultivar choice and soil characteristics.

APA, Harvard, Vancouver, ISO, and other styles

26

Thuerig, Barbara, Andreas Fließbach, Nicole Berger, Jacques G. Fuchs, Noemy Kraus, Nicole Mahlberg, Bruno Nietlispach, and Lucius Tamm. "Re-establishment of suppressiveness to soil- and air-borne diseases by re-inoculation of soil microbial communities." Soil Biology and Biochemistry 41, no. 10 (October 2009): 2153–61. http://dx.doi.org/10.1016/j.soilbio.2009.07.028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Abinandan, Sudharsanam, Suresh R. Subashchandrabose, Kadiyala Venkateswarlu, and Mallavarapu Megharaj. "Soil microalgae and cyanobacteria: the biotechnological potential in the maintenance of soil fertility and health." Critical Reviews in Biotechnology 39, no. 8 (August 27, 2019): 981–98. http://dx.doi.org/10.1080/07388551.2019.1654972.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Vilain, Sébastien, Yun Luo, Michael B. Hildreth, and Volker S. Brözel. "Analysis of the Life Cycle of the Soil Saprophyte Bacillus cereus in Liquid Soil Extract and in Soil." Applied and Environmental Microbiology 72, no. 7 (July 2006): 4970–77. http://dx.doi.org/10.1128/aem.03076-05.

Full text

Abstract:

ABSTRACT Bacillus is commonly isolated from soils, with organisms of Bacillus cereus sensu lato being prevalent. Knowledge of the ecology of B. cereus and other Bacillus species in soil is far from complete. While the older literature favors a model of growth on soil-associated organic matter, the current paradigm is that B. cereus sensu lato germinates and grows in association with animals or plants, resulting in either symbiotic or pathogenic interactions. An in terra approach to study soil-associated bacteria is described, using filter-sterilized soil-extracted soluble organic matter (SESOM) and artificial soil microcosms (ASM) saturated with SESOM. B. cereus ATCC 14579 displayed a life cycle, with the ability to germinate, grow, and subsequently sporulate in both the liquid SESOM extract and in ASM inserted into wells in agar medium. Cells grew in liquid SESOM without separating, forming multicellular structures that coalesced to form clumps and encasing the ensuing spores in an extracellular matrix. Bacillus was able to translocate from the point of inoculation through soil microcosms as shown by the emergence of outgrowths on the surrounding agar surface. Microscopic inspection revealed bundles of parallel chains inside the soil. The motility inhibitor l-ethionine failed to suppress outgrowth, ruling out translocation by a flagellar-mediated mechanism such as swimming or swarming. Bacillus subtilis subsp. subtilis Marburg and four Bacillus isolates taken at random from soils also displayed a life cycle in SESOM and ASM and were all able to translocate through ASM, even in presence of l-ethionine. These data indicate that B. cereus is a saprophytic bacterium that is able to grow in soil and furthermore that it is adapted to translocate by employing a multicellular mode of growth.

APA, Harvard, Vancouver, ISO, and other styles

29

Wakelin, S. A., R. A. Warren, and M. H. Ryder. "Effect of soil properties on growth promotion of wheat by Penicillium radicum." Soil Research 42, no. 8 (2004): 897. http://dx.doi.org/10.1071/sr04035.

Full text

Abstract:

Penicillium radicum is a phosphate-solubilising fungus with plant growth promoting (PGP) activity. The widespread agronomic use of P. radicum as an inoculant is dependent on the accurate prediction of conditions where PGP response will occur. Therefore, the effect of soil physicochemical and biotic factors on PGP of wheat by P. radicum was investigated. In the first experiment, PGP was assayed in 10 soils with differing physicochemical properties. Each soil was tested with and without treatment with hydroxyapatite—an insoluble form of calcium phosphate used to increase the level of total inorganic P available for microbial solubilisation. Inoculation of wheat with P. radicum significantly (P < 0.05) increased plant growth in 4 of the 10 soils tested. The magnitude of the PGP response varied with soil type, and ranged from 8.5% (plant height, Avon soil) to 75% (plant weight, Mingenew soil). Most soil properties had little influence on PGP, with only low soil fertility (N and/or P) identified as a strong indicator of PGP by P. radicum. When detected, PGP was strongest in acidic soil conditions, although PGP was observed in neutral and alkaline soils. Virtually no interactions were detected between addition of hydroxyapatite to the soil and P. radicum inoculation. The second experiment tested PGP in 3 soils previously found to be non-responsive to inoculation, before and after sterilisation by γ-irradiation. Soil biological factors affected PGP by P. radicum in 2 of the 3 soils tested. In these soils, removal of biological factor(s) increased (P < 0.05 and P < 0.1) PGP by P. radicum. These experiments have shown that large and significant increases in plant growth promotion can be achieved through seed inoculation with P. radicum. However, both abiotic and biotic soil properties play a critical role in determining the success of inoculation. P. radicum-stimulated PGP occurred in infertile soils, with a stronger effect in acidic soil conditions. Furthermore, soil biological factors can have an important role in regulating PGP by P. radicum.

APA, Harvard, Vancouver, ISO, and other styles

30

Wu, Lei, Hu Xu, Qiong Xiao, Yaping Huang, Memon Muhammad Suleman, Ping Zhu, Yakov Kuzyakov, Xingliang Xu, Minggang Xu, and Wenju Zhang. "Soil carbon balance by priming differs with single versus repeated addition of glucose and soil fertility level." Soil Biology and Biochemistry 148 (September 2020): 107913. http://dx.doi.org/10.1016/j.soilbio.2020.107913.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Zangaro, Waldemar, Jose Marcelo Domingues Torezan, Leila Vergal Rostirola, Priscila Bochi de Souza, and Marco Antonio Nogueira. "INFLUENCE OF MYCORRHIZAS, ORGANIC SUBSTRATES AND CONTAINER VOLUMES ON THE GROWTH OF Heliocarpus popayanensis Kunth." CERNE 21, no. 3 (September 2015): 395–403. http://dx.doi.org/10.1590/01047760201521031335.

Full text

Abstract:

ABSTRACT This work assessed, under nursery conditions, the effect of arbuscular mycorrhizal fungi (AMF) inoculation on the initial growth of the woody species Heliocarpus popayanensis Kunth in containers of different sizes (nursery tubes of 50 or 250 cm3) containing composted cattle manure or organic Pinus spp bark compost diluted (0 to 100%, each 9%) with low fertility soil. Plants in cattle manure grew more than plants grown in pine bark manure independent of tube size. AMF were more efficient in improving plant growth in 250 cm3 tubes than in 50 cm3 tubes independent of the substrates. Mycorrhizal plants grown in 50 cm3 tubes showed less growth than non-mycorrhizal ones irrespective of the substrates. Nevertheless, this growth depression decreased with an increase of substrates dilution with low fertility soil. In the higher dilutions, growth depression did not occur and there was a positive response to AMF inoculation. In addition, only mycorrhizal plantlets showed some growth in low fertility soil as the sole substrate. These results indicated that AMF affect plantlet growth positively or negatively depending on the combination of substrates, fertility level, and container size.

APA, Harvard, Vancouver, ISO, and other styles

32

Peng, Yi, Yisheng Duan, Weige Huo, Minggang Xu, Xueyun Yang, Xihe Wang, Boren Wang, Martin S. A. Blackwell, and Gu Feng. "Correction to: Soil microbial biomass phosphorus can serve as an index to reflect soil phosphorus fertility." Biology and Fertility of Soils 57, no. 5 (April 23, 2021): 671. http://dx.doi.org/10.1007/s00374-021-01563-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Ceccanti, B., B. Pezzarossa, F. J. Gallardo‐Lancho, and G. Masciandaro. "Biotests as markers of soil utilization and fertility." Geomicrobiology Journal 11, no. 3-4 (July 1993): 309–16. http://dx.doi.org/10.1080/01490459309377960.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Diatta, Andre A., Wade E. Thomason, Ozzie Abaye, Larry J. Vaughan, Thomas L. Thompson, Mamadou Lo, Bee K. Chim, and Sarah Bateman. "Inoculation and Soil Texture Effects on Yield and Yield Components of Mungbean." Journal of Agricultural Science 10, no. 9 (August 13, 2018): 6. http://dx.doi.org/10.5539/jas.v10n9p6.

Full text

Abstract:

Mungbean [Vigna radiata (L.) Wilczek] is a short-duration and relatively drought-tolerant crop grown predominantly in the tropics. This grain legume can improve soil fertility through biological nitrogen (N) fixation. To assess the effects of Bradyrhizobium (group I) inoculation on yield and yield attributes of mungbean, a greenhouse study was conducted during Fall 2016 with two mungbean cultivars (‘Berken’ and ‘OK2000’), two inoculum treatments (inoculated and uninoculated), and two soil textures (loamy sand and silt loam). Pots were laid out in a completely randomized design and treatment combinations were replicated seven times. The main effects of cultivar and soil texture significantly (P ≤ 0.05) affected mungbean seed weight and plant residue mass. Seed yield (13%), plant residue (22%), and protein content (6%) of OK2000 were significantly higher than Berken cultivar. A 31% seed yield and 40% plant residue increase were recorded on silt loam soil compared to loamy sand soil. Significant increase in plant height (18%) and number of pods per plant (21%) were also recorded when mungbean plants were grown on silt loam compared to loamy sand soil. Bradyrhizobium inoculation significantly increased the number of pods per plant, the number of seeds per plant, and seed yield. [Cultivar × inoculation] and [cultivar × soil texture] interactions had significant (P ≤ 0.05) effects on number of seeds per pods and plant height, respectively. Understanding the agronomic practices and soil physical properties that may limit mungbean production could help in optimizing its establishment and growth in non-traditional growing areas.

APA, Harvard, Vancouver, ISO, and other styles

35

Wyszkowska, J., J. Kucharski, and E. Wałdowska. "The influence of diesel oil contamination on soil enzymes activity." Plant, Soil and Environment 48, No. 2 (December 21, 2011): 58–62. http://dx.doi.org/10.17221/4360-pse.

Full text

Abstract:

A pot experiment was conducted in order to examine the influence of soil contamination with diesel oil at 0.0, 2.4, 4.8 and 7.2 ml/kg on the activity of dehydrogenases, urease, acid phosphatase and alkaline phosphatase. The results indicated that diesel oil contamination of soil strongly inhibited the activity of dehydrogenases and soil urease, but had only a slight effect on the activity of acid phosphatase and alkaline phosphatase. The negative influence of diesel oil on the activity of dehydrogenases and urease was attenuated by soil inoculation with Streptomyces intermedius spores. The potential biochemical index of soil fertility computed from the soil enzymatic activity and carbon content was negatively correlated with diesel oil contamination and positively correlated with crop yield. Biochemical properties of soil were improved by oat cultivation.

APA, Harvard, Vancouver, ISO, and other styles

36

Okonji, Christopher, Olalekan Sakariyawo, Kehinde Okeleye, Adedayo Osunbiyi, and Emmanuel Ajayi. "Effects of arbuscular mycorrhizal fungal inoculation on soil properties and yield of selected rice varieties." Journal of Agricultural Sciences, Belgrade 63, no. 2 (2018): 153–70. http://dx.doi.org/10.2298/jas1802153o.

Full text

Abstract:

Plant growth can be stimulated by a symbiotic relationship between arbuscular mycorrhizal fungi (AMF) and bacteria within the rhizosphere region. These interactions are crucial for increasing soil fertility, which leads to increased productivity and sustainability, as well as food security considering a high level of malnutrition. Six rice varieties were grown with (M+) or without (M-) AMF inoculation in a randomised complete block design with three replicates. The soil physic-chemical properties were determined using standard procedures. Bacteria were isolated from the soil samples and the colony count was determined during the early and late cropping seasons of rice. Specific soil properties (phosphate, pH, organic matter) increased dramatically in the presence of AMF, which led to significant rice yield in both seasons. Bacterial species isolated included Lactobacillus spp., Klebsiella aerogenes, Bacillus subtilis, Escherichia coli, Pseudomonas fluorescens, Azospirillum brasilense, Bacillus subtilis, Staphylococcus aureus, Enterobacter cloacae, and Micrococcus sp. Rice exudates increased the bacterial population in the early season, while AMF treatment increased the bacterial population in the late season and generally increased the bacterial species richness in both seasons. Although the actual mechanism that increased the bacterial species richness was not accessed, this study, however, shows that AMF-bacteria interaction increased and sustained soil fertility which consequently increased rice yield. A further study is necessary to determine the mechanism of the interaction observed between AMF inoculation and bacterial population.

APA, Harvard, Vancouver, ISO, and other styles

37

Dabesa, Alemayehu, and Tamado Tana. "Response of Soybean (Glycine max L. (Merrill)) to Bradyrhizobium Inoculation, Lime, and Phosphorus Applications at Bako, Western Ethiopia." International Journal of Agronomy 2021 (May 24, 2021): 1–12. http://dx.doi.org/10.1155/2021/6686957.

Full text

Abstract:

Soil acidity and poor soil fertility are the major soil chemical constraints which limit crop productivity in western Ethiopia. In leguminous crops, low productivity is not only a result of declining soil fertility but also reduced N2 fixation due to biological and environmental factors. Thus, this study was carried out to determine the influence of lime, Bradyrhizobium inoculation, and phosphorus fertilizer on soybean yield components and yields and to identify economically feasible treatments that can maximize the productivity of soybean. Factorial combinations of three Bradyrhizobium strains (uninoculated, TAL379, and Legumefix), two lime levels (0 and 3.12 t ha−1), and four P levels (0, 23, 46, and 69 kg P2O5 ha−1) were laid out in RCBD with three replications. The results showed that the application of lime (3.12 t ha−1) significantly increased soil pH (5.6), plant height (77.2 cm), number of primary branches per plant (6.6), 100-seed weight (17.5 g), grain yield (3431 kg ha−1), and harvest index (41%). Similarly, significantly higher grain yield (3228 kg ha−1) and harvest index (41%) were obtained with inoculation of TAL379 whereas Legumefix inoculation recorded the highest number of primary branches (6.7). The effect of P at 69 kg P2O5 ha−1also gave significantly higher plant height (75.5 cm), number of primary branches (6.6), grain yield (3277 kg ha−1), and harvest index (43%). The interaction of P and Bradyrhizobium inoculation significantly influenced days to physiological maturity and number of pods per plant. Similarly, the interaction of phosphorus and lime significantly influenced days to 50% flowering. Likewise, the combination of lime (3.12 t ha−1) with TAL379 inoculation gave the highest aboveground biomass. On the other hand, the interaction of Bradyrhizobium × lime × phosphorus revealed that application of 69 kg P2O5 ha−1 without TAL379 inoculation under limed condition significantly resulted in the highest number of nodules per plant (79.4) and number of effective nodules (67.9). Thus, it can be concluded that, particularly in the western part of Ethiopia where soil acidity is a major problem, application of phosphorus with Bradyrhizobium and lime is an alternative option to enhance biological nitrogen fixation and grain yield of soybean in smallholder farming system.

APA, Harvard, Vancouver, ISO, and other styles

38

Clayton, G. W., W. A. Rice, N. Z. Lupwayi, A. M. Johnston, G. P. Lafond, C. A. Grant, and F. Walley. "Inoculant formulation and fertilizer nitrogen effects on field pea: Crop yield and seed quality." Canadian Journal of Plant Science 84, no. 1 (January 1, 2004): 89–96. http://dx.doi.org/10.4141/p02-090.

Full text

Abstract:

Appropriate rhizobial inoculation and fertility management can increase field pea (Pisum sativa) seed yield and improve yield stability in western Canada. The objective of this study was to determine the effect of inoculation method and N fertilizer application on pea seed yield and quality. The effects of soil inoculant (granular) and seed-applied inoculant (peat powder or liquid) used with and without urea-N application on field pea were investigated in the Peace River region of Western Canada. At low applied N rates, field pea biomass was significantly higher for soil-applied inoculant as compared to seed-applied inoculant. Soil-applied inoculant resulted in 15, 18, 9 and 0% higher pea biomass yield at the flatpod stage than seed-applied inoculant at 0, 20, 40 and 80 kg N ha-1, respectively. Averaged over all N rates, soil-applied inoculant resulted in 17, 50, and 56% higher pea seed yield than peat inoculant, liquid inoculant, or the uninoculated check, respectively. Soil-applied inoculant increased the proportion of the biological yield converted to seed compared to seed-applied inoculant. Seed protein concentration increased by 12 and 15% when inoculant was soil-applied compared with seedapplied or uninoculated pea, respectively. Without N fertilizer, soil-applied inoculant increased field pea biomass, seed yield and protein concentration and contributed to increasing yield stability compared with seed-applied inoculant. Key words: Granular inoculant, Pisum sativum, field pea, inoculation, seed protein, seed yield

APA, Harvard, Vancouver, ISO, and other styles

39

Masrahi, Abdurrahman, Anil Somenahally, and Terry Gentry. "Interactions of Arbuscular Mycorrhizal Fungi with Hyphosphere Microbial Communities in a Saline Soil: Impacts on Phosphorus Availability and Alkaline Phosphatase Gene Abundance." Soil Systems 4, no. 4 (October 22, 2020): 63. http://dx.doi.org/10.3390/soilsystems4040063.

Full text

Abstract:

The limited availability of soil phosphorus to plants under salinity stress is a major constraint for crop production in saline soils, which could be alleviated by improving mycorrhizal and soil microbial interactions. This study investigated the effects of Funneliformis mosseae (Fm) inoculation on phosphorus (P) availability to Sorghum bicolor, and alkaline phosphatase (ALP) activity and gene abundance (phoD) in a P-deficient naturally saline soil. A greenhouse study was conducted in order to compare the experimental treatments of Fm inoculated vs. control plants grown in saline soil with and without (sterilized soil) native microbial community. A separate hyphosphere (root-free) compartment was constructed within the mycorrhizosphere and amended with phosphate. After four weeks of transplanting, shoot, roots, mycorrhizosphere, and hyphosphere samples were collected and analyzed for soil and plant P concentrations, root colonization, and abundance of ALP and phoD. The results showed significantly higher colonization in Fm-inoculated treatments compared to uninoculated. Plant available P concentrations, phoD gene abundance and ALP activity were significantly reduced (p < 0.05) in sterilized-hyphosphere as compared to unsterilized in both Fm-inoculated and uninoculated treatments. Inoculation with Fm significantly increased the plant P uptake (p < 0.05) when compared to uninoculated treatments, but only in the plants gown in unsterile mycorrhizosphere. It can be concluded that inoculation of Fm increased root colonization and the uptake of P by sorghum plant in saline soil and native microbial community interactions were critical for increasing bioavailable P concentrations. These beneficial interactions between plants, mycorrhizae, and native microbes should be considered for soil fertility management in saline soils.

APA, Harvard, Vancouver, ISO, and other styles

40

Weaver, R. W., L. A. Materon, M. E. Krautmann, and F. M. Rouquette. "Survival ofRhizobium trifolii in soil following inoculation of arrowleaf clover." Mircen Journal of Applied Microbiology and Biotechnology 1, no. 4 (December 1985): 311–18. http://dx.doi.org/10.1007/bf01553415.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Wenk, M., T. Baumgartner, J. Dobovšek, T. Fuchs, J. Kucsera, J. Zopfi, and G. Stucki. "Rapid atrazine mineralisation in soil slurry and moist soil by inoculation of an atrazine-degrading Pseudomonas sp. strain." Applied Microbiology and Biotechnology 49, no. 5 (May 25, 1998): 624–30. http://dx.doi.org/10.1007/s002530051224.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Rold�n, A., and J. Albaladejo. "Effect of mycorrhizal inoculation and soil restoration on the growth of Pinus halepensis seedlings in a semiarid soil." Biology and Fertility of Soils 18, no. 2 (July 1994): 143–49. http://dx.doi.org/10.1007/bf00336461.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Astiko, Wahyu, and Wayan Wangiyana. "Respon Pola Tanam Jagung-Sorgum Terhadap Beberapa Paket Pemupukan Berbasis Mikoriza Indigenus Dan Bahan Organik Di Lahan Kering Lombok Utara." JURNAL SAINS TEKNOLOGI & LINGKUNGAN 4, no. 2 (December 29, 2018): 153. http://dx.doi.org/10.29303/jstl.v4i2.95.

Full text

Abstract:

This study aims to determine the response of corn-sorghum cropping patterns on several environmentally friendly fertilization packages that can improve the quality of soil fertility streamline the use of inorganic fertilizers and improve crop yields on dry land. This research was conducted at Akar-Akar Village, Bayan District, North Lombok. The experimental design used was a Randomized Block Design, by testing five environmentally friendly fertilization packages on the corn-sorghum cropping pattern and repeated 4 times. The results showed that the response of maize-sorghum cropping patterns to the fertilizing package 60% lower than the recommended fertilizer dosage with the addition of 12 tons of manure per ha accompanied by mycorrhizal inoculation increasing soil fertility shown by increasing nutrient status of N, P, K and ingredients soil organic matter, increasing plant nutrient uptake (N, P, K and Ca), growth, crop yields and MA activity in the soil.

APA, Harvard, Vancouver, ISO, and other styles

44

Warmink, J. A., and J. D. van Elsas. "Migratory Response of Soil Bacteria to Lyophyllum sp. Strain Karsten in Soil Microcosms." Applied and Environmental Microbiology 75, no. 9 (March 13, 2009): 2820–30. http://dx.doi.org/10.1128/aem.02110-08.

Full text

Abstract:

ABSTRACT In this study, the selection of bacteria on the basis of their migration via fungal hyphae in soil was investigated in microcosm experiments containing Lyophyllum sp. strain Karsten (DSM2979). One week following inoculation with a bacterial community obtained from soil, selection of a few specific bacterial types was noticed at 30 mm in the growth direction of Lyophyllum sp. strain Karsten in sterile soil. Cultivation-based analyses showed that the migration-proficient types encompassed 10 bacterial groups, as evidenced by (GTG)5 genomic fingerprinting as well as 16S rRNA gene sequencing. These were (>97% similarity) Burkholderia terrae BS001, Burkholderia sordidicola BS026, Burkholderia sediminicola BS010, and Burkholderia phenazinium BS028; Dyella japonica BS013, BS018, and BS021; “Sphingoterrabacterium pocheensis” BS024; Sphingobacterium daejeonense BS025; and Ralstonia basilensis BS017. Migration as single species was subsequently found for B. terrae BS001, D. japonica BS018 and BS021, and R. basilensis BS017. Typically, migration occurred only when these organisms were introduced at the fungal growth front and only in the direction of hyphal growth. Migration proficiency showed a one-sided correlation with the presence of the hrcR gene, used as a marker for the type III secretion system (TTSS), as all single-strain migrators were equipped with this system and most non-single-strain migrators were not. The presence of the TTSS stood in contrast to the low prevalence of TTSSs within the bacterial community used as an inoculum (<3%). Microscopic examination of B. terrae BS001 in contact with Lyophyllum sp. strain Karsten hyphae revealed the development of a biofilm surrounding the hyphae. Migration-proficient bacteria interacting with Lyophyllum sp. strain Karsten may show complex behavior (biofilm formation) at the fungal tip, leading to their translocation and growth in novel microhabitats in soil.

APA, Harvard, Vancouver, ISO, and other styles

45

Morin, F., J. A. Fortin, C. Hamel, R. L. Granger, and D. L. Smith. "Apple Rootstock Response to Vesicular-arbuscular Mycorrhizal Fungi in a High Phosphorus Soil." Journal of the American Society for Horticultural Science 119, no. 3 (May 1994): 578–83. http://dx.doi.org/10.21273/jashs.119.3.578.

Full text

Abstract:

A 12-week greenhouse experiment was undertaken to test the efficiency of inoculation of vesicular-arbuscular mycorrhizal fungi on four apple (Malus domestica Borkh) rootstock cultivars: M.26, Ottawa 3 (Ott.3), P.16, and P.22. The plants were grown in soil from an apple rootstock nursery, containing high levels of extractable P (644 kg Bray/1 ha-1). Inoculation treatments were Glomus aggregatum Shenck and Smith emend. Koske, G. intraradix Shenck and Smith, and two isolates of G. versiforme (Karsten) Berch, one originally from California (CAL) and the other one from Oregon (OR). Mycorrhizal plants were taller, produced more biomass, and had a higher leaf P concentration than the uninoculated control plants. Mycorrhizal inoculation also significantly increased the leaf surface area of `M.26' and `Ott.3' compared to the control. Glomus versiforme(CAL)-inoculated plants generally had the best nutrient balance, the greatest final height and shoot biomass, and produced an extensive hyphal network. All the mycorrhizal plants had similar percentages of root colonization, but the size of the external hyphal network varied with fungal species. Glomus versiforme(OR) had a larger extramatrical phase than G. aggregatum and G. intraradix. Mycorrhizal efficiency was associated with a larger external hyphal network, but showed no relation with internal colonization. Despite the high P fertility of the soil used, growth enhancement due to mycorrhizal inoculation was attributed to improved P nutrition.

APA, Harvard, Vancouver, ISO, and other styles

46

Zangaro, Waldemar, Fabio Rodrigo Nishidate, Julia Vandresen, Galdino Andrade, and Marco Antonio Nogueira. "Root mycorrhizal colonization and plant responsiveness are related to root plasticity, soil fertility and successional status of native woody species in southern Brazil." Journal of Tropical Ecology 23, no. 1 (January 2007): 53–62. http://dx.doi.org/10.1017/s0266467406003713.

Full text

Abstract:

Twelve native woody species were studied to investigate the influences of soil fertility and root morphology on colonization by arbuscular mycorrhizal (AM) fungi during seedling establishment and growth. Seedlings were grown in soils of low and high natural fertility, uninoculated or inoculated with AM fungi, under greenhouse conditions. The mycorrhizal root colonization and plant responsiveness were higher among early successional species than late successional ones. Among early successional species, in both soils, mycorrhizal colonization provided significant increase in total dry mass, growth rates of shoot and root, root length, density of root tissues, root surface area and P concentration and content in the shoot. Early successional species grown with AM fungi displayed significant decreases in carbon allocation to roots, specific root length and the length and incidence of root hairs. Mycorrhizal colonization did not affect the root morphology of the late successional species in either soil. The growth of these woody species was influenced by differences in soil fertility. There was positive correlation between the degree of plant responses to AM inoculation with the percentage of root colonized by AM fungi. In both soils, plant responsiveness and mycorrhizal root colonization correlated positively to root-hair incidence and root-hair length and correlated negatively to fine-root diameter. The results suggest that during the establishment of seedlings, the large responses to the inoculation and colonization of roots by AM fungi are related to both the successional status and root morphological plasticity of the host plant, regardless of soil fertility.

APA, Harvard, Vancouver, ISO, and other styles

47

Sun, Wei, Xun Qian, Jie Gu, Xiao-Juan Wang, Yang Li, and Man-Li Duan. "Effects of inoculation with organic-phosphorus-mineralizing bacteria on soybean (Glycine max) growth and indigenous bacterial community diversity." Canadian Journal of Microbiology 63, no. 5 (May 2017): 392–401. http://dx.doi.org/10.1139/cjm-2016-0758.

Full text

Abstract:

Three different organic-phosphorus-mineralizing bacteria (OPMB) strains were inoculated to soil planted with soybean (Glycine max), and their effects on soybean growth and indigenous bacterial community diversity were investigated. Inoculation with Pseudomonas fluorescens Z4-1 and Brevibacillus agri L7-1 increased organic phosphorus degradation by 22% and 30%, respectively, compared with the control at the mature stage. Strains P. fluorescens Z4-1 and B. agri L7-1 significantly improved the soil alkaline phosphatase activity, average well color development, and the soybean root activity. Terminal restriction fragment length polymorphism analysis demonstrated that P. fluorescens Z4-1 and B. agri L7-1 could persist in the soil at relative abundances of 2.0%–6.4% throughout soybean growth. Thus, P. fluorescens Z4-1 and B. agri L7-1 could potentially be used in organic-phosphorus-mineralizing biofertilizers. OPMB inoculation altered the genetic structure of the soil bacterial communities but had no apparent influence on the carbon source utilization profiles of the soil bacterial communities. Principal components analysis showed that the changes in the carbon source utilization profiles of bacterial community depended mainly on the plant growth stages rather than inoculation with OPMB. The results help to understand the evolution of the soil bacterial community after OPMB inoculation.

APA, Harvard, Vancouver, ISO, and other styles

48

Balota, Elcio Liborio, Oswaldo Machineski, and Alexandra Scherer. "Mycorrhizal effectiveness on physic nut as influenced by phosphate fertilization levels." Revista Brasileira de Ciência do Solo 36, no. 1 (February 2012): 23–32. http://dx.doi.org/10.1590/s0100-06832012000100003.

Full text

Abstract:

In recent years, physic nut (Jatropha curcas L.) has attracted attention because of its potential for biofuel production. Although it is adapted to low-fertility soils, physic nut requires soil acidity corrections and addition of a considerable amount of fertilizer for high productivity. The objective of this research was to evaluate the effectiveness of arbuscular mycorrhizal fungi (AMF) (control without AMF inoculation, Gigaspora margarita inoculation or Glomus clarum inoculation) on increasing growth and yield of physic nut seedlings under different rates of P fertilization (0, 25, 50, 100, 200, and 400 mg kg-1 P soil) in greenhouse. The experiment was arranged in a completely randomized, block in a factorial scheme design with four replications. The physic nut plants were harvested 180 days after the beginning of the experiment. Mycorrhizal inoculation increased physic nut growth, plant P concentration and root P uptake efficiency at low soil P concentrations. The P use quotient of the plants decreased as the amount of P applied increased, and the P use efficiency index increased at low P levels and decreased at high P levels. Mycorrhizal root colonization and AMF sporulation were negatively affected by P addition. The highest mycorrhizal efficiency was observed when the soil contained between 7.8 and 25 mgkg-1 of P. The physic nut plants responded strongly to P application, independent of mycorrhizal inoculation.

APA, Harvard, Vancouver, ISO, and other styles

49

Zhou, Yunpeng, Felipe Bastida, Bo Zhou, Yifei Sun, Tao Gu, Shuqin Li, and Yunkai Li. "Soil fertility and crop production are fostered by micro-nano bubble irrigation with associated changes in soil bacterial community." Soil Biology and Biochemistry 141 (February 2020): 107663. http://dx.doi.org/10.1016/j.soilbio.2019.107663.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Allahverdiyev, E. R., and D. A. Isayeva. "Influence of irrigation and fertilizer rate on changing the nutritional regime of mixed crops (sorghum and pea) soil on stubble." Agrarian science 344, no. 1 (March 13, 2021): 136–39. http://dx.doi.org/10.32634/0869-8155-2021-344-1-136-139.

Full text

Abstract:

Relevance. The article quotes questions of the influence of fertilizer rates and the number of irrigations on the change in the nutrient regime of the soil when growing mixed crops of pea and sorgho in the conditions of the Karabakh zone of Azerbaijan. In this regard, one of the main issues considered was the development on a scientific and practical basis of the nature of changes in the nutrient regime of the soil and the effect of optimal fertilizer rates and the number of irrigations on crop yields in mixed crops in long-irrigated gray meadow soils.Methods. To study the effect of irrigation and fertilizer rates in mixed crops on changes in the nutrient regime of the soil, soil samples were taken from two soil layers (0-30 and 30-60 cm) after cutting. In the soil samples taken, compounds of nitrogen, phosphorus and potassium that are readily absorbed by plants were analyzed.Results. Analysis of soil samples shows that the application of mineral and organic fertilizers against the background of different amounts of irrigation fundamentally affects the effective fertility of the soil. In general, in the phase of flowering and panicle formation under the influence of irrigation and fertilizers, effective soil fertility was observed compared to the control variant without fertilizing, which remained at a sufficient amount. And this indicates that the plant showed a high demand for this nutrient. The decrease in the number of nutrients in the panicle formation phase indicates its connection with the removal of high yields. Analysis of soil samples during the study shows that the introduction of mineral and organic fertilizers against a background of varying amounts of irrigation has fundamentally affected the effective soil fertility.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Soil fertility. Soil microbiology. Soil inoculation'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles