Relevant bibliographies by topics / Soils Organic fertilizers

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Soils Organic fertilizers'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Soils Organic fertilizers"

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Šimon, T., and A. Czakó. "Influence of long-term application of organic and inorganic fertilizers on soil properties." Plant, Soil and Environment 60, No. 7 (2014): 314–19. http://dx.doi.org/10.17221/264/2014-pse.

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This study assesses the effect of long-term (59 years) application of organic and inorganic fertilizers on soil organic matter and enzyme activity. Total organic C, total organic N, hot water soluble C, microbial biomass C and dehydrogenase activity were evaluated in soil from the long-term field experiment in Prague-Ruzyně (Orthic Luvisol, clay loam). Total organic C and N increased significantly in soils treated with organic fertilizers (farmyard manure, compost) and in soils with a combination of organic and mineral NPK fertilizers (manure + NPK, compost + NPK, cattle manure + straw + NPK) compared to soil treated with inorganic fertilizer, cattle slurry + straw and non-fertilized control. Farmyard manure significantly increased hot water soluble C compared to the control. Dehydrogenase activity was significantly increased by all treatments compared to control. The results indicate that additions of organic matter from various sources differ in the effects on soil organic matter and biological activity. The effect of manure was the most favourable; long-term application of cattle slurry + straw is rather similar to mineral fertilization.
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Khanom, S., BK Saha, MT Islam, and MAH Chowdhury. "Influence of Organic and Inorganic Fertilizers on the Growth, Leaf Yield, Chlorophyll and Protein Contents of Stevia Grown in Different Soil Types." Progressive Agriculture 19, no. 1 (2013): 23–31. http://dx.doi.org/10.3329/pa.v19i1.16986.

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A pot experiment was conducted in the open net house of the Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh from January to June, 2007, to study the effect of organic and inorganic fertilizers on the growth, leaf yield, chlorophyll and protein contents of Stevia rebaudiana (Bert.). The experiment was laid out in completely randomized design with three replications having 16 treatment combinations. Four types of soil viz., saline, acidic, calcareous and non-calcareous soils were collected from Khulna, Tangail, Natore and Mymensingh districts of Bangladesh, respectively. Two organic (poultry manure and cow dung) and one inorganic fertilizers @ the recommended dose along with a control were used as treatment factor. The experimental results indicated that different soil types significantly influenced all parameters studied. The highest values of all parameters were obtained from the plant grown in noncalcareous soil which was identical with acidic soil for some parameters. Different types of organic and inorganic fertilizer had also significant influence on all plant parameters. In all cases, the highest values were recorded from the plant fertilized with chemical fertilizers. Poultry manure and cow dung also showed identical results with chemical fertilizer in most cases. Interaction effect of different types of soil and fertilizer showed significant variation for most of the parameters studied except chlorophyll and protein contents. Plants grown in noncalcareous soil fertilized with chemical fertilizers exhibited the best performance in most of the cases. The overall results suggested that stevia can be cultivated in noncalcareous and acidic soils fertilized with chemical fertilizers along with poultry manure favoring the productivity of stevia.DOI: http://dx.doi.org/10.3329/pa.v19i1.16986 Progress. Agric. 19(1): 23 - 31, 2008
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Zeynalabidin qızı Mirmövsümova, Nəcibə. "Influence of fertilizers on the productivity and quality of aubergine plant in the irrigated grey-brown soils of Absheron." NATURE AND SCIENCE 07, no. 02 (2021): 12–15. http://dx.doi.org/10.36719/2707-1146/07/12-15.

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Annotation: Influence of mineral fertilizers on aubergine plant together with organic fertilizers has been studied in the irrigated grey-brown soils of Absheron. According to the results of our research on the irrigated grey-brown soils of Absheron, it can be said that organic and mineral fertilizers had a positive effect on the productivity and quality indicators of aubergine plant. Especially in the variant of N75P75K90 + 5t/ha, the results were higher than in other variants. Keywords: mineral fertilizer, organic fertilizer, irrigated grey-brown soil, aubergine plant, productivity, sugar, nitrate.
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Romanov, Evgeny, Dmitry Mukhortov, and Tatiana Nureeva. "Application of organic waste composts when producing forest planting material." Bulletin of the Faculty of Forestry, no. 113 (2016): 133–50. http://dx.doi.org/10.2298/gsf1613133r.

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Most seedlings and saplings of woody plants in the Russian Federation are produced in the open ground in forest nurseries. In order to produce high quality planting material it is necessary to support and preserve soil fertility, which can be obtained by using organic wastes and organic-based fertilizers. Our research is aimed at the assessment of the influence of non-conventional organic fertilizers on fertility of podzols and on the growth rate of seedlings and saplings of woody plants in forest nurseries. Our research shows, that the application of non-conventional organic fertilizers does not result in any accumulation of heavy metal salts in podzols, but optimizes hydro physical and agrochemical properties of the ploughed horizon. The efficiency of non-conventional organic fertilizers depends on their composition, physical and chemical characteristics of the original components, their doses applied and original fertility of soils. A combined application of non-conventional organic fertilizers and sand results in the optimization of practically all soil fertility parameters in middle clay-loam soils, while application of non-conventional organic fertilizers and clay is optimal for application on light soils. The optimal application dose of non-conventional fertilizers depends on soil texture, woody species and the fertilizer composition. An optimal application dose for Norway spruce on a light clay-loam soil is 50-80 tons/ha, and on a middle clay-loam soil is 149-182 tons/ha. It is 50 tons/ha for Scots pine growing on a sandy loam soil, and 100 tons/ha for the same species growing on a sandy soil or a light clay-loam. For Siberian larch growing on a light clay-loam soil the dose of fertilizer applied should be 150 tons/ha. It is recommended to apply composts containing over 50% (by weight) of Category II wastes (substrate) for the amelioration of light soils, and composts containing over 40% (by weight) of Category I wastes (filler) for the amelioration of heavy soils. It would allow for the optimization of soil properties and production of better quality planting material in forest nurseries.
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Barreta, Daniel Augusto, Suélen Serafini, Luís Carlos Iuñes Oliveira Filho, Antonio Waldimir Leopoldino da Silva, Alexandre Tadeu Paulino, and Dilmar Baretta. "Effects of fertilizers on the root of Avena strigosa and behavior of Folsomia candida." Revista Acta Ambiental Catarinense 18, no. 1 (2020): 1–9. http://dx.doi.org/10.24021/raac.v18i1.5350.

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The aim of this work was to evaluate the effects of increasing doses of mineral and organic fertilizers on the root chemotaxis of Avena strigosa and avoidance of Folsomia candida. Five soil samples were used for the mineral fertilization with NPK and other five soil samples were used for the organic fertilization with poultry litter-based organic fertilizer. The experiment included control soils (without applications) and soils containing 4-, 8-, 16- and 32-ton fertilizer per ha. A. strigosa was planted and cultivated in the soils for 14, 21, 28 and 35 days and avoidance behavior of F. candida. The root amounts in the soils containing mineral fertilizer were higher than those of the soils containing poultry litter-based organic fertilizer. The avoidance behavior of F. candida from the soils containing poultry litter-based organic fertilizer increased from 8- to 32-ton ha-1. Applications of high poultry litter-based organic fertilizer doses in soil increase the toxic effects for A. strigosa and F. candida.
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Ahmed Amin, Sahar. "Alpha activity emitted from leaves and roots of beetroot plant planted in enhanced soil with fertilizers." International Journal of Physical Research 8, no. 2 (2020): 50. http://dx.doi.org/10.14419/ijpr.v8i2.31029.

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This study is to assesses radioactive materials transported to the beetroot plants grow in different fertilized soil. Equivalent weights of fertilizers were added to the soil prior the plantation. The alpha track densities were estimated utilizing solid state nuclear track detector (SSNTDs), CR-39. The obtained results show that alpha track densities in Beetroot plants in the lower and upper sides of plant leaves were varied from 67.62 Tr.cm−2 to 101.83 Tr.cm−2 and from 45.35 Tr.cm−2 to 94.67 Tr.cm−2 with mean values of 89.96 Tr.cm−2 and 68.48 Tr.cm−2, respectively. Alpha track densities were also measured in the samples of the enhanced plantation soil with fertilizers and in the whole parts of the Beetroot plant which were planted in these soils. These values were compared with alpha track densities obtained from fertilizer samples in the previous studies. The lower face of leaves gives higher α-particles activity than that obtained from the upper face. As well as, the alpha activity from the plants planted in soils enhanced with phosphate compost was found greater as contrast with that planted in a soil enhanced with organic fertilizer. The utilization of organic fertilizer don't cause much risks like contrasted with phosphate fertilizers. Therefore, the alpha activity depends on the nature of fertilizers added to the soil.
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Hartz, T. K., R. Smith, and M. Gaskell. "Nitrogen Availability from Liquid Organic Fertilizers." HortTechnology 20, no. 1 (2010): 169–72. http://dx.doi.org/10.21273/horttech.20.1.169.

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Limited soil nitrogen (N) availability is a common problem in organic vegetable production that often necessitates additional N fertilization. The increasing use of drip irrigation has created a demand for liquid organic fertilizers that can be applied with irrigation. The N availability of three liquid organic fertilizers was evaluated in an incubation study and a greenhouse bioassay. Phytamin 801 contained fishery wastes and seabird guano, while Phytamin 421 and Biolyzer were formulated from plant materials. The fertilizers ranged from 26 to 60 g·kg−1 N, 8% to 21% of which was associated with particulate matter large enough to potentially be removed by drip irrigation system filtration. The fertilizers were incubated aerobically in two organically managed soils at constant moisture at 15 and 25 °C, and sampled for mineral N concentration after 1, 2, and 4 weeks. In the greenhouse study, these fertilizers and an inorganic fertilizer (ammonium sulfate) were applied to pots of the two organically managed soils with established fescue (Festuca arundinacea) turf; the N content of clippings was compared with that from unfertilized pots after 2 and 4 weeks of growth. Across soils and incubation temperatures, the N availability from Phytamin 801 ranged from 79% to 93% of the initial N content after 1 week, and 83% to 99% after 4 weeks. The plant-based fertilizers had significantly lower N availability, but after 4 weeks, had 48% to 92% of initial N in mineral form. Soil and incubation temperature had modest but significant effects on fertilizer N availability. Nitrification was rapid, with >90% of mineral N in nitrate form after 1 week of incubation at 25 °C, or 2 weeks at 15 °C. N recovery in fescue clippings 4 weeks after application averaged 60%, 38%, and 36% of initial N content for Phytamin 801, Phytamin 421, and Biolyzer, respectively, equivalent to or better than the N recovery from ammonium sulfate.
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Wang, Lian Feng, Yan Jiao Qiao, and Xi Linx Zhang. "Effects of Mineral Fertilizers and Organic Manure Long-Term Application on Carbon Dioxide Emissions from Black Soils in Harbin, China." Advanced Materials Research 255-260 (May 2011): 2925–29. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.2925.

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Carbon dioxide (CO2) is an important greenhouse gas. CO2emission from different long-term fertilized black soils was investigated by incubation experiment at soil water content of 70% water holding capacity. Maximal CO2flux was observed at the beginning of 24-h and 48-h incubation after the rewetting of dry soil. Combined fertilizer nitrogen (N), phosphorus (P) with manure (M) emitted the highest CO2-C, was up to 175 mg kg-1. Compared to zero fertilization (CK), fertilizers application increased CO2emission (P<0.05). Single fertilization N, P and potassium (K) increased CO2emission 19%, 43% and 22%, respectively. Combined two-way or three-way fertilizer N, P and K also increased CO2emission. Based on mineral fertilization, additional organic manure application furthered CO2emission. Two-way fertilizers (NP, NK and PK) application with organic manure increased CO2emission at the percentage of 398, 13.8 and 29.1, respectively (P<0.05). Although organic manure application ameliorated soil chemical, physical and biological conditions, organic manure fertilization increasing CO2emission should be considered in agricultural practice.
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Sirbu, Carmen, Traian Cioroianu, Nicoleta Marin, and Bogdan Rujoi. "Liquid Fertilizers with Organic Substances - Agrochemical Effects Obtained by Application." Revista de Chimie 69, no. 6 (2018): 1478–84. http://dx.doi.org/10.37358/rc.18.6.6350.

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The fertilization methods and technologies rapid development using extra-radicular fertilizers and liquid fertilizers with or without organic substances is due to both their controlled application possibilities depending on the vegetation phases, crop, agrochemical background, and nutrition deficiencies and efficiency increase of the indices regarding the fertilization costs -economical results The best agricultural practices application, compatible with the new climatic conditions, can actively contribute to environment preservation and protection at the same time with crops constancy and production capability securement. Fertilizers application with solid or liquid humic substances ensures all the needed compounds and minerals for creating and maintaining a fertile soil. At the same time their efficiency depends on multiple factors that include temperature, humidity, previous agricultural practices, soil physical and chemical characteristics, pesticides or other polluting products residues, microbial population present in the soil and the activity it develops. The humic compounds mediate pesticides and toxins degradation and contaminated soils biological reparation rests on humus help in microbial degradation. The paper presents the results obtained by radicular application of two experimental NPK type fertilizers with humic substances at the sunflower crop in vegetation pots. The fertilizers have been physically and chemically characterized and agrochemically tested as compared to an unfertilized control and two fertilized controls with a complex 15.15.15 NPK fertilizer in 120 and 180 kg/ha doses. The experimental fertilizers were applied in portions upon crops sowing and during vegetation in three 200, 300, respectively 400 liters fertilizer/ha and ensured significant gains as compared to the controls.The extracted humic substances and the fertilizers were physically and chemically characterized as well as through differential thermal gravimetric analysis and FT-IR spectrometry. The vegetal material and the sunflower seeds were analyzed regarding the nitrogen phosphorus, potassium, calcium, magnesium, zinc, copper, iron, and manganese contents.
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Burkhanova, Dilnavoza, Dilrabo Kodirova, Munisa Urmanova, Muradjan Karimov, and Matlyuba Usmonova. "Perceived methods for increasing the productivity of irrigated typical gray and grazing soils of Uzbekistan in non-traditional irrigation." E3S Web of Conferences 258 (2021): 03024. http://dx.doi.org/10.1051/e3sconf/202125803024.

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This article considers the effective effect of mulching of irrigated typical gray and meadow soils with plant residues and application of various fertilizers on soil fertility, mulching of typical gray soils with plant residues and application of various fertilizers (organic fertilizers, biohumus and biopreparations) in meadow soils. The effect on microbiological activity was determined. The application of various fertilizers (organic fertilizers, biohumus and biopreparations) to typical irrigated gray and meadow soils and mulching of the soil with plant residues have been shown to affect the growth and yield of winter wheat and cotton.
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Dissertations / Theses on the topic "Soils Organic fertilizers"

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Guppy, Christopher Neil. "Phosphorus and organic matter interactions in highly weathered soils /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17420.pdf.

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Carefoot, Janna. "Phosphorous leaching from coarse-textured soils amended with inorganic or organic fertilizers." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33725.

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Non-point source pollution of surface waters with phosphorous (P) transported from agricultural soils has emerged as a major environmental issue in the last decade. Regulations limiting P accumulation in surface soils have been established to protect surface water quality. Yet, little information is available on the quantities of P that may leach through soils and the factors influencing P leaching in agricultural soils. One important factor may be the type of fertilizer P applied, since it is known that P solubility varies among fertilizer sources. The purpose of this thesis was to quantify P leaching in soils amended with inorganic and organic fertilizers.<br>In a field study, we found that the fertilizer P source (triple superphosphate, composted cattle manure, or a mixture of the two) did not affect soil test P concentration, the degree of soil P saturation, or P leaching in a sandy-loam soil. The soil test P level in the 0--15-cm depth (146 mg P kg -1) exceeded the critical limit of 66-mg kg-1 established in Quebec, and ortho-P and DOP concentrations in leachates collected from piezometers were generally higher than the provincial water quality standard of 0.03 mg P L-1. If transported from our study site, P leached through this coarse-textured soil could pose a threat to groundwater and surface water quality.<br>These findings were verified in the laboratory with two coarse-textured soils. We found that more NO3-N and DON were leached from soils receiving inorganic N and P fertilizers than composted cattle manure, but the amounts of ortho-P and DOP leached were not affected by fertilizer sources. In coarse-textured soils, the quantities of P leached can be substantial, but depends more on soil characteristics than the fertilizer P source.
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Odlare, Monica. "Organic residues - a resource for arable soils /." Uppsala : Dept. of Microbiology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200571.pdf.

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Sprinkle, Amy Lyn. "Nutrient management on golf courses in Delaware." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 1.01Mb, 155 p, 2005. http://wwwlib.umi.com/dissertations/fullcit/1428197.

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De, Silva Sarangu Hewage Srimawan Ajantha. "Amelioration of the physical conditions of sandy soils with organic amendments under tropical conditions." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391721.

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Summerhays, Jeffrey Sean Christian. "Effectiveness of Phosphorus Fertilizers in Hydroponics and Glasshouse Settings with Moderate and High Organic Matter Soils." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3754.

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Phosphorus (P) is poorly soluble in most soils and, thus, has poor plant uptake efficiency. AVAIL® and Carbond P (CBP) are new fertilizer products shown to increase P use efficiency (PUE) and increase crop yields when grown in P limiting soils. Carbond P has specifically been seen to increases P uptake and crop yields in soils low in P, although effectiveness in regards to soil organic matter is unknown. The objectives of these studies were to determine if the mode of action for these products is related to physiological response, to determine if Carbond P is toxic to plant roots when in direct contact at high rates, and determine the limitations of Carbond P in regards to biomass (yield), P uptake and concentration. We used a hydroponic study to compare CBP to AVAIL in evaluating plant toxicity and plant philological response. AVAIL and CBP were also compared to ammonium polyphosphate (APP) at pH 6 or 8 for hydroponically grown maize (Zea mays L.). Additionally, a glasshouse study evaluated the PUE of CBP with soil in which maize was grown. Soils were moderate or high in organic matter, with 0, 5, 15, 45, or 135 kg P2O5 ha-1 applied as either APP or CBP. Both studies showed that CBP is a suitable PUE enhancing fertilizer. In the greenhouse study, the high organic matter soil revealed that both CBP and APP fertilization resulted in similar increases in biomass yield and P concentration and uptake. However, in the moderate organic matter soil, biomass and total P uptake was significantly greater for CBP than APP at the two lowest P rates of fertilization and significantly higher for APP than CBP at the highest P application rate. In the hydroponic study, neither AVAIL nor CBP had any positive or adverse effects on the plants as compared to APP. These results, coupled with this and previous soil-based greenhouse and field studies with AVAIL and CBP, show that the increase in PUE is not a physiological growth stimulant response, but rather likely the result of impacts on P solubility in the soil. However, the presence of high organic matter in the soil seemed to negate the effects of the organic acid bonded P used in Carbond P. We conclude that CBP, and possibly other organic acid based fertilizers, can assist in furthering agricultural goals, as well as environmental responsibility with these known limits.
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Luo, Yongming. "The fate and chemical speciation of heavy metals applied to soils in a sewage sludge-derived organic fertiliser." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388065.

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Georgis, Kidane. "The effect of fertiliser management practices on soil organic matter production in the semi-arid areas : a field and modelling approach." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09AFP/09afpg352.pdf.

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Bibliography: leaves 155-169. Studies the effect of nitrogen fertilizer on dry matter production under differing watering regimes. Investigates the accuracy of different crop and soil organic matter models for predicting crop yield, nitrogen uptake and changes in soil organic carbon and nitrogen. Compares the models with data from long-term field experiments on wheat in Australia and sorghum in Ethiopia. Finds that a higher crop yield and better nitrogen and water utilisation can be achieved if addition of nitrogen fertilizer is balanced with soil water.
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Thurston, Molly Adair. "Identification of phosphate solubilizing bacteria and evaluation of their application with insoluble phosphorus fertilizers to soils from certified organic orchards affected by replant disease." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44949.

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Replant disease (RD) affects the growth and establishment of young fruit trees in old orchard soils. Organic management strategies are needed as an alternative to chemical controls. Improved phosphorus (P) nutrition to stimulate root growth and improve tree establishment is a well-established strategy; however, only insoluble Rock Phosphate (RP) and Bone Meal (BM) inputs are available to Canadian organic growers. The ability of specific plant growth promoting rhizobacteria to solubilize phosphate may improve P availability and its uptake in young apple trees, replanted into inoculated orchards. In this study, 101 bacteria isolated from the roots of legumes from Saskatchewan soils were screened for P solubilization. Thirty-four of these bacteria were positive for P solubilization as measured by halo diameter production on calcium phosphate medium. Twelve isolates showing the largest halo diameters and three known P solubilizing bacteria (PSB) were compared on three media: calcium phosphate, Pikovskaya (PVK) and PVK with bromophenol blue. All twelve isolates previously identified as Pseudomonas, Rhanella, Serratia and Klebsiella spp. solubilized P on all media, although the halo diameters varied among media. The isolates were tested in liquid culture, where a marked decrease in the pH of the solution was observed and six isolates were identified for further testing in growth pouch assays in the presence of insoluble P. The root growth of apple seedlings inoculated with one of the six bacterial isolates, showed significant increases in total root length, surface area and the number of root tips compared to the control after four weeks of incubation. Three isolates were selected for greenhouse bioassays using five RD-affected soils collected from organic orchards. These isolates were inoculated onto apple trees, alone or in combination with RP or BM. Two field trials were simultaneously conducted in organic apple orchards, using iii the same treatments; however there were no significant effects of the isolate treatments in either set of experiments. Although the strongest P solubilizers did not enhance tree growth in the greenhouse and orchard trials, the in vitro work showed the potential of PSB as a tool to mitigate the impact of RD.
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Chaoui, Hala I. "Separating earthworms from organic media using an electric field." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1133296897.

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Books on the topic "Soils Organic fertilizers"

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Mamaril, Cezar Paragas. Facts and myths about organic fertilizers. Philippine Rice Research Institute (PhilRice), 2009.

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Shewell-Cooper, W. E. Soil, humus and health: An organic guide. Good Gardeners' Association, 1993.

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Tu rang you ji zhi. Ke xue chu ban she, 2010.

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E, Howard Louise, ed. The soil and health: A study of organic agriculture. Oxford City Press, 2011.

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Parnes, Robert. Organic & inorganic fertilizers. Woods End Agricultural Institute, 1986.

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Parnes, Robert. Fertile soil: A grower's guide to organic & inorganic fertilizers. 2nd ed. AgAccess, 1990.

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Ingham, Elaine R. The compost tea brewing manual. Unisun Communications, in association with the Sustainable Studies Institute, 2000.

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Ingham, Elaine R. The compost tea brewing manual. 5th ed. Soil Foodweb Inc., 2003.

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Humic, fulvic, and microbial balance: Organic soil conditioning : an agricultural text and reference book. Jackson Research Center, 1993.

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Rao, N. S. Subba. Biofertilizers in agriculture. 2nd ed. Oxford & IBH Pub. Co., 1988.

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Book chapters on the topic "Soils Organic fertilizers"

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Pedraza, R. O., C. H. Bellone, and S. C. de Bellone. "Evaluation of easily oxidizable organic matter in greenhouse soils through a biological technique." In Fertilizers and Environment. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1586-2_51.

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Rosolem, Ciro A., Antonio P. Mallarino, and Thiago A. R. Nogueira. "Considerations for Unharvested Plant Potassium." In Improving Potassium Recommendations for Agricultural Crops. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_6.

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AbstractPotassium (K) is found in plants as a free ion or in weak complexes. It is easily released from living or decomposing tissues, and it should be considered in fertilization programs. Several factors affect K cycling in agroecosystems, including soil and fertilizer K contributions, plant K content and exports, mineralization rates from residues, soil chemical reactions, rainfall, and time. Soil K+ ions can be leached, remain as exchangeable K, or migrate to non-exchangeable forms. Crop rotations that include vigorous, deep-rooted cover crops capable of exploring non-exchangeable K in soil are an effective strategy for recycling K and can prevent leaching below the rooting zone in light-textured soils. The amount of K released by cover crops depends on biomass production. Potassium recycled with non-harvested components of crops also varies greatly. Research with maize, soybean, and wheat has shown that 50–60% of K accumulated in vegetative tissues is released within 40–45 days. A better understanding of K cycling would greatly improve the efficacy of K management for crop production. When studying K cycling in agricultural systems, it is important to consider: (1) K addition from fertilizers and organic amendments; (2) K left in residues; (3) K partitioning differences among species; (4) soil texture; (5) soil pools that act as temporary sources or sinks for K. In this chapter, the role of cash and cover crops and organic residues on K cycling are explored to better understand how these factors could be integrated into making K fertilizer recommendations.
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Paz, Carlota Garcia, Teresa Taboada Rodríguez, Valerie M. Behan‐Pelletier, et al. "Fertilizers, Organic." In Encyclopedia of Soil Science. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-3995-9_224.

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Jamilou Salissou, Ibrahim, Saidou Addam Kiari, Sabiou Mahamane, Amadou Abdourhamane Toure, and Bouba Hassane. "Combined Effects of Organic and Mineral Fertilizers on Soil Productivity in Tomato Production: Experiments on Soils of the Coast Road of Yantala-Bas." In Improving the Profitability, Sustainability and Efficiency of Nutrients Through Site Specific Fertilizer Recommendations in West Africa Agro-Ecosystems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-58792-9_11.

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Mitra, Sisir. "Plant nutrition and irrigation." In Guava: botany, production and uses. CABI, 2021. http://dx.doi.org/10.1079/9781789247022.0007.

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Abstract This chapter focuses on plant nutrition and irrigation in guava production. Information is given on soil, salinity, nutrient uptake, role of nutrients, fertilizer rate and time of application, foliar application, integrated nutrient management, tissue analysis, organic production, water management, and fertigation.
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Vanlauwe, Bernard, John Wendt, and Jan Diels. "Combined Application of Organic Matter and Fertilizer." In Sustaining Soil Fertility in West Africa. Soil Science Society of America and American Society of Agronomy, 2015. http://dx.doi.org/10.2136/sssaspecpub58.ch12.

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Bationo, Andre, and J. O. Fening. "Soil Organic Carbon and Proper Fertilizer Recommendation." In Improving the Profitability, Sustainability and Efficiency of Nutrients Through Site Specific Fertilizer Recommendations in West Africa Agro-Ecosystems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-58789-9_1.

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Singh, Teg Bahadur, Akbar Ali, Mrinalini Prasad, et al. "Role of Organic Fertilizers in Improving Soil Fertility." In Contaminants in Agriculture. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-41552-5_3.

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Verma, B. C., P. Pramanik, and Debarati Bhaduri. "Organic Fertilizers for Sustainable Soil and Environmental Management." In Nutrient Dynamics for Sustainable Crop Production. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8660-2_10.

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Hati, Kuntal, and Kalikinkar Bandyoopadhay. "Fertilizers (Mineral, Organic), Effect On Soil Physical Properties." In Encyclopedia of Agrophysics. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-3585-1_201.

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Conference papers on the topic "Soils Organic fertilizers"

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Petelko, A. I. "Rational use of washed soil." In РАЦИОНАЛЬНОЕ ИСПОЛЬЗОВАНИЕ ПРИРОДНЫХ РЕСУРСОВ В АГРОЦЕНОЗАХ. Federal State Budget Scientific Institution “Research Institute of Agriculture of Crimea”, 2020. http://dx.doi.org/10.33952/2542-0720-15.05.2020.31.

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Integrated agricultural practices contribute to increasing and restoring the fertility of washed lands, reducing water erosion of soils on the slopes. When cultivating eroded soils, it is necessary to introduce organic and mineral fertilizers into the arable layer, enrich it with nutrients and eliminate the acid reaction. To do this, you need to carry out deep plowing up to 30 cm with the simultaneous introduction of organic matter and mineral fertilizers. If the soil is acidic, then liming is necessary. This will help to create a better soil environment and better absorption of fertilizers.
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Rasheed, Rihab, Touria Bounnit, Hareb Al Jabri, and Imen Saadaoui. "Algae-based Biofertilizer for Date Palm Cultivation in Qatar." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0034.

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Date palm (Phoenix dactylifera L.) is the main fruit crop found in the arid and semi-arid regions of the world. It naturally adapts to the adverse environments of extreme heat and water scarcity and prevents further desertification in addition to producing fruits with high nutritional value. It is seen in many parts of the world that traditional cultivation practices such as mixed planting and chemical fertilizers have led to low fruit quality resulting in low market values. Long generation time also hinders production of the dates. Tissue culture is therefore considered the most promising solution for rapid large-scale production of trueto- type clonal plants. The plantlets originating from in vitro callus proliferation are transferred from synthetic media to soil. The conventional method of using chemical fertilizers also leads to low plantlet viability with increased environmental and health risk. The current research targets the use of a local microalga, Tetraselmis sp. QUCCCM8, identified as an organic source of nutrients, a substitute for chemical fertilizers to acclimatize cultured date palmlets to soil. Soil was supplemented with different concentrations of algal biomass and plant growth was monitored for 3 months. Soil without any fertilizer and soil amended with 1 g conventional fertilizer were used as negative and positive control, respectively. Supplementation with 0.5 g of algal biomass led to higher plant growth rates, 100% survival rates, high ability of rooting (3.17 ± 0.14 roots), higher number of leaves (2.5 ± 0.25 leaves), largest stem thickness, longer shoot (33.75 ± 1.56 cm), and higher total chlorophyll (159.61 ± 9.6 mg L⁻ ¹) as compared to conventional fertilizer. These stated findings are significantly higher than the control. Furthermore, elemental analysis of the soil showed that supplementation with algal biomass increased the soil total nitrogen, potassium, and phosphorus contents essential for plant growth. Finally, the comparison of heavy metals composition between soils amended with conventional fertilizer and algae-based fertilizer highlights the potential use of algae as a safe and efficient biofertilizer post tissue culture mode of plantlet generation. This enhanced the viability of healthy plantlets without affecting the environment, averting usage of chemical fertilizers.
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Puhalsky, Ya V., S. I. Loskutov, E. M. Lapteva, Yu A. Vinogradova, V. A. Kovaleva, and E. M. Perminova. "The effect of organic fertilizers on the taxonomic composition of microbial communities in agro-soddy-podzolic soils of the middle taiga." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.201.

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Balakina, T. R., and V. N. Nedbaev. "Effect of the use of reclamation mixture and fertilizers on sugar beet." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-59.

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the article presents data on the study of the effect of a reclamation mixture consisting of defecate and magnesium sulfate, as well as the joint application of a reclamation mixture with organic and mineral fertilizers on gray forest soils of the Central Chernozem region on the development of sugar beet.
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MAZHAYSKY, Yuri, Tatyana GUSEVA, and Otilija MISECKAITĖ. "INTEGRATED MELIORATION MEASURES ON RESTORATION OF POLLUTED AND DEGRADED SOILS FERTILITY." In Rural Development 2015. Aleksandras Stulginskis University, 2015. http://dx.doi.org/10.15544/rd.2015.044.

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In case of significant technogenic geochemical loads on agricultural landscapes, the issue of ecological forecasting of environmental management is particularly important. Scientific studies of this issue are aimed at establishing the critical values for the components of the ecosystem, the classification of technogenic sources of hazardous substances, levels of soil contamination. This study presents a research to determine the content of heavy metals in the soils of the Ryazan region (Russia) and analyzed the level of their pollution. In the experiments organic, organomineral and mineral fertilizers systems were studied. From 2002 to 2008 were conducted lysimetric experiments on detoxification of elevated pollution of sod-podzol sandy loam soil, and from 2006 to 2008 of podzolized black soil. The participation of the non-ferrous metals plant emissions was detected in the pollution of sod-podzol light in granulometric composition soils with copper of up to 80 mg·kg-1, when the average concentration of Cu in the soil was 38.8 ±6 mg·kg-1. Humification plays a significant role in the formation of soil, its most important properties and characteristics. The saturation of 1 hectare of sown area with organic was slightly different in the experiments, but the intensity of accumulation of humus from the various agrochemical means did not almost differ. The problem of adaptation of plants in the conditions of technogenic environment is of primary importance. Plants have three biobarera against the admission of toxicants, these are the soil – the root – the stem – the reproductive organs. Grain in contaminated soil is environmentally hazardous as the content of Pb is indicated at the level of 0.68, 1.17 mg·kg-1 (MPC 0.5), Cd – 0.27, 0.11 mg·kg-1 (MPC 0.1), Zn – 76 mg·kg-1 (50 MPC). Use of fertilizing systems had a mostly positive effect, but products do not always become environmentally friendly.
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Zatserkovnyi, V. I., N. V. Tsuman, P. I. Trofymenko, O. I. Bondar, and A. D. Balayev. "AGRO-ENVIRONMENTAL MONITORING OF THE APPLICATION OF MINERAL AND ORGANIC FERTILIZERS ON DRIED POLISH TERRACE SOILS." In Monitoring 2019. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201903259.

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Chaturvedi, Shivani, Santosh Satya, Geetanjali Kaushik, and Arvind Chel. "Viable Tailored Organic Fertilizer Alternatives From Waste Produced by Bio-Diesel Extraction Process and Tobacco Industry." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54177.

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Rapid depletion of conventional sources of energy and the growing environmental concern of their use warrant urgent attention to look for suitable energy alternatives. In this regard the seeds of Jatropha curcas, constituting 40–50% bio-crude oil are considered as one of the most promising alternatives for the production of bio-diesel. It is estimated that about 1.5 tons de-oiled cake is produced from seeds obtained from one hectare of plantation, utilized for bio-diesel extraction process. Being non-edible due to its toxic contents, cost effective safe disposal of this by-product can only be possible if there is a meaningful utilization. India’s tobacco industry is the second largest in the world after China, having vast area under tobacco cultivation. The wastes from tobacco industry lead to significant environmental pollution that has severe impacts on both flora and fauna. A few studies on this aspect have revealed that Jatropha and tobacco bio-wastes have potential to be used as organic fertilizers. The present study aims at developing appropriate bio-processes and formulation that utilize Jatropha seed cake and waste of tobacco industry as organic fertilizer for improving the growth of Chrysanthemum, a flower variety valued for its beauty and fragrance and having wide applications in cosmetic and perfumery products. Pot experiments were carried out by adding specific proportions of Jatropha de-oiled cake and tobacco waste to normal garden soil. The growth and morphological parameters of Chrysanthemum plants grown in pots prepared by the treated soil were monitored for 4–5 months and the results were recorded. The results have been encouraging as the treatments lead to a significant enhancement in flower growth as well as yield. 11.5% increase in number of buds per plant was recorded for treated soil as compared to the control soil. The number of flowers per plant also recorded an increase of 16% to 24% due to the effect of formulation applied to the soil. Similar trends were observed for other parameters like flower size, flower head size, flower weight and ray floret number. Through experimentation new composted organic fertilizer formulations, tailored to specific commercial crop has been developed. The research findings would enable these bio-wastes to be used as a viable alternative to the energy intensive chemical fertilizers for floriculture, thus contributing to the mitigation of global climate change. This addition in the value chain would improve the financial viability of bio-diesel extraction process. This new synergistic organic fertilizer formulation when used as an alternative to nitrogenous chemical fertilizers would also provide an opportunity to earn carbon credits which is estimated to be € 67904 millions/year.
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Snegirev, D. V. "THE RESPONSE OF THE WHITE CABBAGE VARIETY AMAGER 611 TO THE APPLICATION OF MICROBIOLOGICAL FERTILIZER BIOVEL-ROST MARKA-A IN THE CONDITIONS OF THE MOSCOW REGION." In 11-я Всероссийская конференция молодых учёных и специалистов «Актуальные вопросы биологии, селекции, технологии возделывания и переработки сельскохозяйственных культур». V.S. Pustovoit All-Russian Research Institute of Oil Crops, 2021. http://dx.doi.org/10.25230/conf11-2021-225-229.

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To meet the nutritional needs of cabbage plants and ensure the maximum growth rate and high productivity, a special attention must be paid to the presence of a sufficient amount of readily available nutrients in the soil, primarily nitrogen. Cabbage grows faster against the background of mineral fertilizers, which is explained by the easy availability of the nutrients included in their composition, in comparison with organic fertilizers. At the same time, I.V. Gulyakin notes that the combined application of mineral and organic fertilizers is much more effective than using only mineral or only organic fertilizers. The analysis of the literature data on the effect of agrochemicals on the chemical composition of cabbage indicates that the ratio of individual components of the applied fertilizers, as well as the time of application, can significantly change its chemical composition both towards improving and deteriorating of the basic biochemical parameters.
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Elbl, Jakub. "USE OF ORGANIC-MINERAL FERTILIZERS AS ALTERNATIVE TO CONVENTIONAL ORGANIC AND MINERAL FERTILIZERS: EFFECT ON SOIL QUALITY." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/3.2/s13.076.

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"Effects of organic fertilizer on evaporation under different saline soils." In 2016 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2016. http://dx.doi.org/10.13031/aim.20162461505.

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