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Articoli di riviste sul tema "Soil nutrient"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Thomson, V. P., and M. R. Leishman. "Survival of native plants of Hawkesbury Sandstone communities with additional nutrients: effect of plant age and habitat." Australian Journal of Botany 52, no. 2 (2004): 141. http://dx.doi.org/10.1071/bt03047.

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Australian soils are naturally low in nutrient concentrations, particularly nitrogen (N) and phosphorus (P). Native plants are well adapted to low-nutrient soils, and can be adversely affected when exposed to higher concentrations of nutrients. The Hawkesbury Sandstone soils in northern Sydney are naturally low in nutrients, but often receive additional nutrient input from urban stormwater run-off. Increases in soil nutrients in urban bushland are associated with the presence of exotic species, and the decline in the diversity of native species. This study tested the hypothesis that high conce

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2

Ye, Chang, Guangjie Zheng, Yi Tao, et al. "Effect of Soil Texture on Soil Nutrient Status and Rice Nutrient Absorption in Paddy Soils." Agronomy 14, no. 6 (2024): 1339. http://dx.doi.org/10.3390/agronomy14061339.

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Soil texture affects rice nutrient uptake and yield formation by influencing soil structure, microbial activity, and soil nutrient supply capacity. Analyzing the relationship between soil texture, nutrient content, and rice agronomic traits is of great significance for precise and efficient fertilizer application. The tillage layer (0–20 cm) of 31 paddy fields in China’s main rice-producing areas was collected to perform rice pot experiments, and soil texture characteristics, physicochemical properties, microbial-related indicators, and rice agronomic traits were measured and analyzed. The res

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3

Molina, Armando, Veerle Vanacker, Oliver Chadwick, Santiago Zhiminaicela, Marife Corre, and Edzo Veldkamp. "Vegetation patterns associated with nutrient availability and supply in high-elevation tropical Andean ecosystems." Biogeosciences 21, no. 12 (2024): 3075–91. http://dx.doi.org/10.5194/bg-21-3075-2024.

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Abstract. Plants absorb nutrients and water through their roots and modulate soil biogeochemical cycles. The mechanisms of water and nutrient uptake by plants depend on climatic and edaphic conditions, as well as the plant root system. Soil solution is the medium in which abiotic and biotic processes exchange nutrients, and nutrient concentrations vary with the abundance of reactive minerals and fluid residence times. High-altitude ecosystems of the tropical Andes are interesting for the study of the association between vegetation, soil hydrology, and mineral nutrient availability at the lands

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4

Ma, Qifu, Zed Rengel, and Terry Rose. "The effectiveness of deep placement of fertilisers is determined by crop species and edaphic conditions in Mediterranean-type environments: a review." Soil Research 47, no. 1 (2009): 19. http://dx.doi.org/10.1071/sr08105.

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Much of our knowledge of plant growth in response to soil nutrient supply comes from studies under homogeneous soil conditions. However, the adoption of reduced or nil tillage and shallow banding of fertilisers at the time of seeding causes spatially variable distribution and availability of soil nutrients in agricultural lands. Soil available nutrients, particularly the poorly mobile ones such as phosphorus (P), potassium (K), zinc (Zn), manganese (Mn), and copper (Cu), stratify within the fertilised topsoil. In water-limited environments where the topsoil is prone to drying, soil nutrient st

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5

Comerford, N. B., W. P. Cropper, Jr., Hua Li, et al. "Soil supply and nutrient demand (SSAND): A general nutrient uptake model and an example of its application to forest management." Canadian Journal of Soil Science 86, no. 4 (2006): 655–73. http://dx.doi.org/10.4141/s05-112.

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Models of soil nutrient bioavailability and uptake assist in nutrient management and lead to a better understanding of nutrient dynamics in the soil-plant system. SSAND (Soil Supply and Nutrient Demand) is a steady state, mechanistic nutrient uptake simulation model based on mass flow and diffusive supply of nutrients to roots. It requires user inputs for soil and plant parameters to calculate a nutrient’s concentration at the root surface and the subsequent uptake by a plant root and/or extrametrical mycorrhizal hyphae. It can be considered a sub-model linked to hydrological or plant growth m

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6

Seman-Varner, R., R. McSorley, and R. N. Gallaher. "Soil nutrient and plant responses to solarization in an agroecosystem utilizing an organic nutrient source." Renewable Agriculture and Food Systems 23, no. 2 (2008): 149–54. http://dx.doi.org/10.1017/s1742170507002001.

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AbstractSoil solarization is used to manage nematodes, pathogens and weeds, but relatively few studies have examined solarization effects on soil mineral nutrients, soil properties and plant tissue nutrients. This study was designed to optimize the duration of solarization treatment for the management of soil and plant nutrients and crop biomass in an agroecosystem utilizing an organic nutrient source. The experiment was a split-plot with treatment duration as the main effect and solarization as the sub-effect. Solarization treatments of 2-, 4- and 6-week durations began on sequential dates an

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7

Agada, B. I., LS O. Tasie, S. S. Snapp, and P. I. Agber. "Soil Nutrient Status of Smallholder Farmers in Makurdi, Benue State, Nigeria." Journal of Global Agriculture and Ecology 16, no. 2 (2024): 50–59. http://dx.doi.org/10.56557/jogae/2024/v16i28710.

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Soil nutrient depletion is a major threat to food security globally. The fertility status of soil forms the foundation of crop production in many small holder farm fields as nutrient element additions as inorganic, synthetic or organic fertilizers are low. Soils from small holder farmer fields were sampled individually with three (3) samples per the farmers field by three (3) depths of 0-30cm, 30-60 cm and 60-90cm with a population of thirty (30) farmers per council ward by three (3 )council wards only in ten (10) local government area (LGAs)) of Benue state. This paper reports for one (1) loc

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8

Moore, James A., Mark J. Kimsey, Mariann Garrison-Johnston, Terry M. Shaw, Peter Mika, and Jaslam Poolakkal. "Geologic Soil Parent Material Influence on Forest Surface Soil Chemical Characteristics in the Inland Northwest, USA." Forests 13, no. 9 (2022): 1363. http://dx.doi.org/10.3390/f13091363.

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Successful fertilization treatments targeted to improve stand productivity while reducing operational complexities and cost depend on a clear understanding of soil nutrient availability under varying environmental conditions. Soil nutrient data collected from 154 forest sites throughout the Inland Northwest, USA were analyzed to examine soil nutrient characteristics on different geologic soil parent materials and to rank soil fertility. Results show that soil parent material explains significant differences in soil nutrient availability. Soils developed from volcanic rocks have the highest cat

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9

National, Press Associates. "SOIL TESTING IS NECESSARY TO IMPROVE CROP PRODUCTIVITY AND SOIL HEALTH." Research & Reviews in Biotechnology & Biosciences 11, no. 2 (2025): 7–10. https://doi.org/10.5281/zenodo.14605865.

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To understand the general physical, chemical, and biological activity of soil, soil testing is essential. There is unquestionably a nutrient shortage in the soil and crop when we observe that the soils are not reacting to crop sowing or fertilizer application. As a result, we are unable to attain the best possible crop growth, production, and soil health. Nutrient balance between crops and soil is ultimately negative. Farmers are nearly always providing direct All nutrients, including fertilizer, will be fully mined. Based on the results of a soil test, attained soil and crop health. Thus, soi

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10

Entry, James A., and William H. Emmingham. "Influence of forest age on nutrient availability and storage in coniferous soils of the Oregon Coast Range." Canadian Journal of Forest Research 25, no. 1 (1995): 114–20. http://dx.doi.org/10.1139/x95-014.

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A substantial fraction of the organic matter and plant essential nutrients in forest ecosystems are contained in the soil. The role of soils in nutrient storage and availability is an essential component of ecosystem function and stability. The top 10 cm of soil contains the highest concentration of nutrients. To determine the influence of forest age on nutrient storage and availability in riparian soils, we compared concentrations, storage, and extractability of plant nutrients in the litter layer and top 10 cm of mineral soil in old-, second-, and young-growth riparian forests. The analysis

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11

Wibiralske, Anne W., Roger Earl Latham, and Arthur H. Johnson. "A biogeochemical analysis of the Pocono till barrens and adjacent hardwood forest underlain by Wisconsinan and Illinoian till in northeastern Pennsylvania." Canadian Journal of Forest Research 34, no. 9 (2004): 1819–32. http://dx.doi.org/10.1139/x04-047.

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We assessed soil and vegetation nutrient capital in the landscape mosaic of till barrens and hardwood forests on the Pocono Plateau in northeastern Pennsylvania. These shrublands, which contain an unusual abundance of rare species, occur primarily on Illinoian-aged glacial till, though some patches grow on Wisconsinan till. We hypothesized that barrens soil and vegetation contain smaller quantities of nutrients than forest soil and vegetation, and under the same vegetation, Illinoian till soils have a smaller nutrient content than Wisconsinan till soils. We measured pH, total C and N, and exch

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12

A.K, Rohith, Dhanesh Kumar T.V, Kota Adilakshmi, Gouri M, and Sathish Thangarasu. "Micronutrient Diffusion Behavior of Nutrient Pellets in Acid Sulphate Soils." Journal of Geography, Environment and Earth Science International 29, no. 1 (2025): 69–78. https://doi.org/10.9734/jgeesi/2025/v29i1856.

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Nutrient bias of acid sulphate soils with overabundance of oxides and sulphates of iron and aluminum fabricates acidic nature in soil as well as inadequacy of other essential nutrients. Crop production in acid sulphate soil is found challenging due to the deteriorating nutrient status hence, this soil is deemed as problem soil. This study aims to concoct a multinutrient pellet for the enhancement of nutrient status in acid sulphate soil, using nutrient sources permitted in National Programme for Organic Production. Laboratory incubation experiment was performed to evaluate the nutrient release

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13

Čekstere, Gunta, Anita Osvalde, and Māris Laiviņš. "Mineral Nutrition of Young Ash in Latvia." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 70, no. 3 (2016): 138–49. http://dx.doi.org/10.1515/prolas-2016-0022.

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Abstract The research objectives were: 1) to determine healthy young ash supply with nutrients and their concentrations in natural growth conditions; 2) to estimate nutrient balance and inter-correlations within a system “soil-plants”; and 3) to determine the potential effect of environmental conditions (forest type, plant phytosociological group, soil group, etc.) on nutrient accumulation in soil and leaves of young ash. The investigation was conducted in 28 different forest sites with young ash in Latvia. The results demonstrated that young ash grows well on a wide range of site types in ter

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14

Medina-Roldán, Eduardo, Meixin Wang, Takafumi Miyasaka, et al. "Precipitation Controls Topsoil Nutrient Buildup in Arid and Semiarid Ecosystems." Agriculture 14, no. 12 (2024): 2364. https://doi.org/10.3390/agriculture14122364.

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Soil nutrient buildup is a key process in nutrient-poor arid and semiarid regions. However, our knowledge of the factors that control soil nutrient buildup in these systems is still limited. An experiment was set up and carried out for five and a half years in order to investigate how precipitation and other site factors control soil nutrient buildup. Topsoil carbon (C), nitrogen (N), phosphorus (P), and potassium (K) derived from litter (soil nutrient buildup) were tracked twice a year at two sites differing in terms of climate and soils (Urat: arid and Naiman: semiarid, both in Inner Mongoli

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15

M, Paramasivan, Malarvizhi P, Thiyageshwari S, and Velayudham K. "A New Systematic Technique for Optimum Fertilizer Treatment in Fertilizer Response Experiments." Madras Agricultural Journal 99, September (2012): 492–95. http://dx.doi.org/10.29321/maj.10.100122.

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Experiments were carried out to optimize the nutrients for hybrid maize through nutrient sorption study and green house experiment during 2007- 2008 at Tamil Nadu Agricultural University, Coimbatore. A systematic procedure for optimum nutrient treatment (ONT) as the basis for formulating the treatment structure for field experiments for fertilizer response studies was tested in the present investigation in two soil series belonging to Mayamankuruchi (Typic Haplustepts and Madukkur (Udic Haplustalfs). Nutrient sorption studies were conducted in these soils for P, K, S, Zn, Fe, Cu, Mn and B. The

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16

Robson, AD, NE Longnecker, and LD Osborne. "Effects of heterogeneous nutrient supply on root growth and nutrient uptake in relation to nutrient supply on duplex soils." Australian Journal of Experimental Agriculture 32, no. 7 (1992): 879. http://dx.doi.org/10.1071/ea9920879.

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Most duplex soils in Western Australia are characterised by multiple nutrient deficiencies. Applications of micronutrients, as well as the macronutrients phosphorus, potassium, nitrogen and sulfur, have been essential for crop and pasture production on these soils. Duplex soils are characterised by heterogeneity in the distribution of mineral nutrients with depth. Additionally, there is heterogeneity both vertically and horizontally in suitability of soil conditions for root growth. There are at least 2 consequences of this heterogeneity for the mineral nutrition of plants on duplex soils. Fir

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17

Ardianti, Arini Ayu, Faris Nur Fauzi Athallah, Restu Wulansari, and Kurniawan Sigit Wicaksono. "The relationship Between Soil Chemical Properties and Uptake of Tea Plant Nutrient in PTPN VI Jambi." Jurnal Tanah dan Sumberdaya Lahan 9, no. 1 (2022): 181–91. http://dx.doi.org/10.21776/ub.jtsl.2022.009.1.20.

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Healthy soil could support plant growth by optimizing the availability of nutrients. The availability of nutrients influences the health of tea plants. Nutrient deficiencies would affect the plant physiology that exhibits the plant withering. This study aimed to define the relationship between soil nutrient availability with plant nutrient uptake. This research was conducted by managing secondary data soil chemical properties, and tea plant nutrients analyzed statistically with Pearson correlation. This study only found a significant correlation between soil pH with P and Mg uptake. Correlatio

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18

An, Xia, Qin Liu, Feixiang Pan, et al. "Research Advances in the Impacts of Biochar on the Physicochemical Properties and Microbial Communities of Saline Soils." Sustainability 15, no. 19 (2023): 14439. http://dx.doi.org/10.3390/su151914439.

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The scientific management of salinized agricultural lands and the use of undeveloped saline lands to ensure food security have become one of the most urgent tasks nowadays. Biochar contains rich carbon (C) and functional groups, and processes high alkalinity, porosity, and specific surface areas. Thus, it has been widely used as an effective organic conditioner in acidic or neutral soils to improve their fertility. However, so far, the impacts of biochar application on properities of saline soils and the underlying mechanisms remain unveiled. Therefore, in this study, we focus on the investiga

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19

Reed, Courtney G., Michelle L. Budny, Johan T. du Toit, et al. "Elephant megacarcasses increase local nutrient pools in African savanna soils and plants." Biogeosciences 22, no. 6 (2025): 1583–96. https://doi.org/10.5194/bg-22-1583-2025.

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Abstract. African elephants (Loxodonta africana) are the largest extant terrestrial mammals, with bodies containing enormous quantities of nutrients. Yet, we know little about how these nutrients move through the ecosystem after an elephant dies. Here, we investigated the initial effects (1–26 months postmortem) of elephant megacarcasses on savanna soil and plant nutrient pools in the Kruger National Park, South Africa. We hypothesized that (H1) elephant megacarcass decomposition would release nutrients into soil, resulting in higher concentrations of soil nitrogen (N), phosphorus (P), and mic

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20

Salvador, Simone Martini, Aline Aparecida Ludvichak, Dione Richer Momolli, et al. "Removal of nutrients due to biomass harvest of Eucalyptus urograndis in different soils: macronutrients." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 16, no. 3 (2021): 1. http://dx.doi.org/10.4136/ambi-agua.2671.

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Intensive management of forest stands can increase biomass production, as well as increase the removal of nutrients from the site. This study therefore sought to simulate different harvest intensities and to calculate the nutrient-use efficiency of Eucalyptus urograndis in different types of soil. The study was carried out in a plantation of seven-year-old hybrid E. urograndis in the city of Telêmaco Borba, Paraná, Brazil. The study site included two sub areas with sandy soil and clayey soil (Cambisols Inceptisol and Ferralsols Oxisols, respectively). Using biomass and nutrients stock data, nu

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21

Chauhan, Sunita, Merodi Sanga, Hitesh Solanki, and Linz Buoy. "COMPRESSION OF SOIL FERTILITY BETWEEN ORGANIC AND CHEMICAL FARMING." VIDYA - A JOURNAL OF GUJARAT UNIVERSITY 3, no. 2 (2024): 191–97. https://doi.org/10.47413/53avr823.

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Context This comparative study investigates soil nutrient retention in organic versus chemical farming systems. As agricultural practices evolve to meet growing food demands, understanding impacts on soil health becomes increasingly crucial. Aims This study aims to elucidate how different farming practices influence soil nutrient dynamics which are essential for sustainable crop production and environmental conservation. Methods The study investigates the impact of organic and chemical farming practices on soil parameters including pH, electrical conductivity (EC), moisture content, the availa

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Mylavarapu, R. S. "Diagnostic Nutrient Testing." HortTechnology 20, no. 1 (2010): 19–22. http://dx.doi.org/10.21273/horttech.20.1.19.

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Recommendations made for nutrient applications have traditionally focused on economic yield and quality. However, present-day testing procedures and recommendations are required to simultaneously ensure economical and environmental sustainability of agricultural production systems. A soil test is a calibrated index relating crop response to applied nutrients. Any application rate devoid of an economical response in yield or quality is deemed unnecessary. Therefore, a soil test becomes the first step in any nutrient best management practice (BMP) development, implementation, and monitoring acti

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Swami, Sanjay. "Soil nutrient status under different agro-climatic zones of Jammu region, India." International Journal of Agricultural and Applied Sciences 1, no. 1 (2020): 18–24. http://dx.doi.org/10.52804/ijaas2020.114.

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In the North Western Himalayas, particularly Jammu region, where 85% of people depend on agriculture and allied sectors, 70% of agriculture is rain-fed. Various factors, especially land use pattern and variations in climatic conditions affect the soil fertility and nutrient contents. However, information on essential nutrients in the soil across the region is meager. An attempt has been made to study the soil nutrient status under different agro-climatic zones of Jammu region. Seven hundred seventy surface soil samples (0-15 cm) from sub-tropical, intermediate and temperate zones of Jammu regi

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Hayes, Emma, Suzanne Higgins, Josie Geris, and Donal Mullan. "Grassland Reseeding: Impact on Soil Surface Nutrient Accumulation and Using LiDAR-Based Image Differencing to Infer Implications for Water Quality." Agriculture 12, no. 11 (2022): 1854. http://dx.doi.org/10.3390/agriculture12111854.

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Long-term phosphorus (P) accumulation in agricultural soils presents a challenge for water quality improvement. P is commonly elevated in soils managed for intensive livestock production due to repeated overapplication of slurry and fertilisers. High legacy nutrient accumulations result in poor water quality via transport pathways such as surface runoff, subsurface drainage, and soil erosion. To achieve environmental water quality targets, improved management strategies are required for targeting and reducing excess agricultural P sources. Reseeding of old swards is known to improve grassland

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Bremer, E., J. J. Miller, and T. Curtis. "Placement of ion-exchange membranes for monitoring nutrient release from flooded soils." Canadian Journal of Soil Science 98, no. 4 (2018): 709–15. http://dx.doi.org/10.1139/cjss-2018-0082.

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Placement of Plant Root Simulator (PRS®) probes (ion-exchange membranes in a plastic support) may strongly influence nutrient supply measurements and their relationship to nutrient loss to overlying water due to gradients in ion activity and redox potential with depth. A laboratory study was conducted with two soils contrasting in potential nutrient loss (manured vs. unamended control) to determine the impact of probe placement (vertical, horizontal, and flat on the soil surface) on nutrient supply rate. The supply rates of the redox-sensitive nutrients Mn and Fe were generally 1–2 orders of m

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Adomako, Michael Opoku, Sergio Roiloa, and Fei-Hai Yu. "Potential Roles of Soil Microorganisms in Regulating the Effect of Soil Nutrient Heterogeneity on Plant Performance." Microorganisms 10, no. 12 (2022): 2399. http://dx.doi.org/10.3390/microorganisms10122399.

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The spatially heterogeneous distribution of soil nutrients is ubiquitous in terrestrial ecosystems and has been shown to promote the performance of plant communities, influence species coexistence, and alter ecosystem nutrient dynamics. Plants interact with diverse soil microbial communities that lead to an interdependent relationship (e.g., symbioses), driving plant community productivity, belowground biodiversity, and soil functioning. However, the potential role of the soil microbial communities in regulating the effect of soil nutrient heterogeneity on plant growth has been little studied.

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Havlin, John, and Ron Heiniger. "Soil Fertility Management for Better Crop Production." Agronomy 10, no. 9 (2020): 1349. http://dx.doi.org/10.3390/agronomy10091349.

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Increasing crop productivity per unit of land area to meet future food and fiber demand increases both soil nutrient removal and the importance of replenishing soil fertility through efficient nutrient management practices. Significant progress in enhancing nutrient-use efficiency in production agriculture requires improved estimates of plant-available nutrients in the root zone, enhanced crop response to applied nutrients, and reduced offsite nutrient transport. This special issue, Soil Fertility Management for Better Crop Production, presents 15 manuscripts that advance our knowledge of inte

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Ndlovu, Siphelele, Terence N. Suinyuy, María A. Pérez-Fernández, and Anathi Magadlela. "Encephalartos natalensis, Their Nutrient-Cycling Microbes and Enzymes: A Story of Successful Trade-Offs." Plants 12, no. 5 (2023): 1034. http://dx.doi.org/10.3390/plants12051034.

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Encephalartos spp. establish symbioses with nitrogen (N)-fixing bacteria that contribute to soil nutrition and improve plant growth. Despite the Encephalartos mutualistic symbioses with N-fixing bacteria, the identity of other bacteria and their contribution to soil fertility and ecosystem functioning is not well understood. Due to Encephalartos spp. being threatened in the wild, this limited information presents a challenge in developing comprehensive conservation and management strategies for these cycad species. Therefore, this study identified the nutrient-cycling bacteria in Encephalartos

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Feng, Ming, Jian Xiang, Xiaofang Ji, and Jiang Jiang. "Larger Soil Water-Stable Aggregate May Exert a Negative Effect on Nutrient Availability: Results from Red Soil (Ultisol), in South China." Forests 14, no. 5 (2023): 975. http://dx.doi.org/10.3390/f14050975.

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Soil aggregates are the basic units of soil, which regulate soil carbon cycling and nutrient availability through the protective effect of soil aggregates on soil organic matter. It is still uncertain whether larger aggregates are more conducive to soil nutrient availability in red soil. This study explored the regulation of soil aggregates on soil nutrient availability by studying the distribution of soil aggregates, nutrient concentrations, nutrient availability and organo-mineral bonds in soil aggregates in a low-productivity Chinese fir forest, in south China. We sampled the 0–10 cm soil w

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Yang, Qingmiao, Hanwen Liu, Biao Tang, et al. "Rare Taxa as Key Drivers of Soil Multi-Nutrient Cycling Under Different Crop Types." Microorganisms 13, no. 3 (2025): 513. https://doi.org/10.3390/microorganisms13030513.

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Soil microorganisms are crucial for nutrient cycling, with abundant and rare taxa playing distinct roles. However, the mechanisms by which soil microbes influence nutrient cycling under different crop types remain unclear. In this study, we investigated the network structure, diversity, and microbial composition of croplands in the Yellow River Delta, focusing on four primary crops: soybean, maize, cotton, and sorghum. The findings revealed that the co-occurring network structure of sorghum planting-soils exhibited greater complexity than other crop types. Bacterial alpha diversity in cotton-p

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Muneer, Muhammad Atif, Xiaoman Huang, Wei Hou, et al. "Response of Fungal Diversity, Community Composition, and Functions to Nutrients Management in Red Soil." Journal of Fungi 7, no. 7 (2021): 554. http://dx.doi.org/10.3390/jof7070554.

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Soil fungi play a critical role in plant performance and soil nutrient cycling. However, the understanding of soil fungal community composition and functions in response to different nutrients management practices in red soils remains largely unknown. Here, we investigated the responses of soil fungal communities and functions under conventional farmer fertilization practice (FFP) and different nutrient management practices, i.e., optimization of NPK fertilizer (O) with soil conditioner (O + C), with lime and mushroom residue (O + L + M), and with lime and magnesium fertilizer (O + L + Mg). Il

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Stewart Jr., C. Neal, and Erik T. Nilsen. "Drosera rotundifolia growth and nutrition in a natural population with special reference to the significance of insectivory." Canadian Journal of Botany 70, no. 7 (1992): 1409–16. http://dx.doi.org/10.1139/b92-177.

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The impact of nutrient addition on growth and nutrient accumulation in Drosera rotundifolia was studied in a field population. Experiments were performed by exclosing insects and (or) adding phosphorus and (or) nitrogen to soil. Drosera rotundifolia did not significantly benefit from insect capture nutritionally or energetically in native or nutritionally enhanced soils. Added nutrients to the soil or supplemental foliar insect feeding decreased phosphorus retention in hibernacula by 50%. Nutrient additions reduced D. rotundifolia vegetative growth in both N and P addition treatments. In addit

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R., Srinivasan1 S.P. Maske1 N. Maddileti1 V. Ramamurthy1 and V. Kasthuri Thilagam2. "Nitrogen Deficiency in Arecanut : Causes and Management." Trends In Agriculture Science 2, no. 7 (2023): 563–66. https://doi.org/10.5281/zenodo.8192129.

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The soil is the top layer of the earth’s surface, comprised of minerals and filled with air and water. Soil provides shelter to many animals that live on or in and is the base of plant systems. Plants’ growth and development depend on minerals and water in the soil. Without soil, there would be no vegetation and no food for the living organism on the earth. About 95% of our food nutrients come from soils, which have a natural capacity to provide nutrients to support crop growth. However, not all soils have the same ability to provide nutrients. Currently, we are facing a contrastin

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Nursyamsi, Dedi. "Identification of Nutrient Deficiencies at Calcareous Soils for Maize." JOURNAL OF TROPICAL SOILS 15, no. 3 (2018): 203–12. https://doi.org/10.5400/jts.2010.v15i3.203-212.

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Identification of nutrient deficiencies at calcareous soils for maize (D Nursyamsi): A pot experiment was conducted to identify nutrient deficiencies at calcareous soils for maize (Zea mays, L.) in green house of Indonesian Soil Research Institute using top soil (0-20 cm) samples taken from Bogor (Typic Hapludalfs) and Blora (Typic Haplustalfs). The experiment used Randomized Completely Block Design, minus one test with 12 treatments and three replications, as well as maize of P21 variety as plant indicator. The results showed that use of N, P, K, Zn, Cu, Fe, and Mn fertilizers increased soil

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Raman, Prabavathi, and Balika J. Chelliah. "Enhanced reptile search optimization with convolutional autoencoder for soil nutrient classification model." PeerJ 11 (April 7, 2023): e15147. http://dx.doi.org/10.7717/peerj.15147.

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Background Soil nutrients play an important role in soil fertility and other environmental factors. Soil testing is an effective tool for evaluating soil nutrient levels and calculating the appropriate quantitative of soil nutrients based on fertility and crop requirements. Because traditional soil nutrient testing models are impractical for real-time applications, efficient soil nutrient and potential hydrogen (pH) prediction models are required to improve overall crop productivity. Soil testing is an effective method to evaluate the presence of nutrient status of soil and assists in determin

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Cui, Yaqi, and Qin Yue. "Regional Soil Nutrient Content Prediction Model Based on Big Data." Journal of Physics: Conference Series 2555, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1742-6596/2555/1/012005.

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Abstract Soil nutrients play a decision-making role in environmental management, and the prediction of soil nutrients can be used to achieve precise fertilization and regulate production. In response to the problem of low accuracy of soil nutrient content prediction by traditional prediction models, this paper designs a prediction model of soil nutrient content based on big data statistics. Soil nutrient content data are collected using a spectral collector, and the data are smoothed, standardized, and orthogonalized to eliminate the data that affect the prediction accuracy. The processed spec

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Yan, Jing, Nathaniel A. Bogie, and Teamrat A. Ghezzehei. "Root uptake under mismatched distributions of water and nutrients in the root zone." Biogeosciences 17, no. 24 (2020): 6377–92. http://dx.doi.org/10.5194/bg-17-6377-2020.

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Abstract. Most plants derive their water and nutrient needs from soils where the resources are often scarce, patchy, and ephemeral. It is not uncommon for plant roots to encounter mismatched patches of water-rich and nutrient-rich regions in natural environments. Such an uneven distribution of resources necessitates plant reliance on strategies for exploring and acquiring nutrients from relatively dry patches. We conducted a laboratory study that elucidates the biophysical mechanisms that enable this adaptation. The roots of tomato (Solanum lycopersicum) seedlings were laterally split and grow

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Schoenau, J. J., and J. G. Davis. "Optimizing soil and plant responses to land-applied manure nutrients in the Great Plains of North America." Canadian Journal of Soil Science 86, no. 4 (2006): 587–95. http://dx.doi.org/10.4141/s05-115.

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Animal manures are recognized as valuable sources of plant nutrients in cropping systems and also play a role in soil improvement through the input of organic matter. Using recent research examples from Saskatchewan and Colorado, this paper covers beneficial management practices for effective recycling of manure nutrients applicable to the Great Plains region of North America. Challenges in using animal manures as fertilizers include low nutrient content per unit weight, variability and availability of nutrient content, and a balance of available nutrients that often does not meet the relative

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Monica Nwawuike, Ifeoma. "Nutrient Assessment of Rain-Fed Lowland and Upland Rice Production Systems in Okigwe, South-Eastern Nigeria." African Journal of Agriculture and Food Science 7, no. 2 (2024): 187–98. http://dx.doi.org/10.52589/ajafs-gi5tf3zk.

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The study was carried out to assess the nutrient status of the two major rice production systems (rain-fed lowland and upland) and the relationship among the nutrient contents of the soil in Okigwe area of Imo State, Nigeria. Soil samples from 15 cm depth were collected from 10 farms in the area: 5 farms from rain-fed lowland and 5 from upland rice production system. The soil samples were prepared and analyzed for macro and micro nutrients together with the particle size distribution. The results from the nutrient concentration in both rain-fed lowland and upland soils showed that pH favoured

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Nguyen, Trung-Ta, and Petra Marschner. "Addition of a fine-textured soil to compost to reduce nutrient leaching in a sandy soil." Soil Research 51, no. 3 (2013): 232. http://dx.doi.org/10.1071/sr13105.

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Compost addition to soil can increase nutrient availability, but if added to sandy soils, nutrients can be rapidly leached. Clay added to compost could increase nutrient retention and reduce nutrient leaching due to binding to the clay. An incubation experiment was conducted to assess the effect of addition of a fine-textured soil (34% clay) to garden waste compost on nutrient availability and leaching in a sandy soil. The sandy soil was non-amended or amended with compost only, at a rate 27.3 g kg–1, or with a mixture of compost and 5% or 20% (w/w) of fine-textured soil. Two additional treatm

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Sun, Mengjiao, Enqing Hou, Jiasen Wu, Jianqin Huang, Xingzhao Huang, and Xiaoniu Xu. "Spatial Patterns and Drivers of Soil Chemical Properties in Typical Hickory Plantations." Forests 13, no. 3 (2022): 457. http://dx.doi.org/10.3390/f13030457.

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Soil nutrients play critical roles in regulating and improving the sustainable development of economic forests. Consequently, an elucidation of the spatial patterns and drivers of soil nutrients in these forests is fundamental to their management. For this study, we collected 314 composite soils at a 0–30 cm depth from a typical hickory plantation in Lin’an, Zhejiang Province, China. We determined the concentrations of macronutrients (i.e., soil organic carbon, available potassium, available phosphorus, available sulfur, and hydrolyzed nitrogen) and micronutrients (i.e., soil available boron,

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Olander, Lydia P., Mercedes M. Bustamante, Gregory P. Asner, Everaldo Telles, Zayra Prado, and Plínio B. Camargo. "Surface Soil Changes Following Selective Logging in an Eastern Amazon Forest." Earth Interactions 9, no. 4 (2005): 1–19. http://dx.doi.org/10.1175/ei135.1.

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Abstract (sommario):

Abstract In the Brazilian Amazon, selective logging is second only to forest conversion in its extent. Conversion to pasture or agriculture tends to reduce soil nutrients and site productivity over time unless fertilizers are added. Logging removes nutrients in bole wood, enough that repeated logging could deplete essential nutrients over time. After a single logging event, nutrient losses are likely to be too small to observe in the large soil nutrient pools, but disturbances associated with logging also alter soil properties. Selective logging, particularly reduced-impact logging, results in

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Abet, Nego Ginting, Oktav Fauziah Nicky, Fakhrurroja Hanif, et al. "Enriched Ameliorant and Readily Available Nutrients for Enhancing the Rhizobacterial Population, Nutrient Uptake, and Yield of Pepper Grown in Inceptisol Soil Media: A Review." INTERNATIONAL JOURNAL OF LIFE SCIENCE AND AGRICULTURE RESEARCH 03, no. 07 (2024): 526–30. https://doi.org/10.5281/zenodo.12656628.

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Abstract (sommario):

Soil fertility affects the diversity and quality of soil microbes in decomposing organic matter and recycling nutrients. Inceptisols soil is young soil that is starting to develop with its soil fertility status. Management is needed to maximize sustainable soil quality and high plant productivity. Chili plants are widely cultivated but suboptimal soil conditions can inhibit plant growth. Ameliorant materials can be organic or inorganic materials. Ameliorant provides benefits in reducing damage, maintaining nutrients in the soil, increasing the organic nutrient content in the soil and helping m

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Vista, S. P., T. B. Ghimire, T. S. Rai, B. S. Kutu, and B. K. Karna. "Assessment and Mapping soil fertility status of Potato Super Zone, Kavrepalanchowk." International Journal of Agricultural Invention 3, no. 02 (2018): 108–15. http://dx.doi.org/10.46492/ijai/2018.3.2.1.

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Abstract (sommario):

Potato is a staple food crop in high hills and mountains and a major vegetable throughout the country and one of the most important cash generating crops in Nepal. With the efforts undertaken by research and extension sectors, its productivity has significantly increased in last twenty years. However, this is not sufficient for increasing population of the country. Considering its potentiality for income, employment, industrial products, export and processing, appropriate technologies are urgent.Soil fertility evaluation is the most basic decision making tool for the sustainable soil nutrient

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Wei, Yuanyuan, Rujing Wang, Junqing Zhang, Hongyan Guo, and Xiangyu Chen. "Partition Management of Soil Nutrients Based on Capacitive Coupled Contactless Conductivity Detection." Agriculture 13, no. 2 (2023): 313. http://dx.doi.org/10.3390/agriculture13020313.

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Abstract (sommario):

A method based on capacitively coupled contactless conductivity detection (C4D), which has been proven effective for the rapid detection of available soil potassium content, was firstly proposed to apply to soil nutrient detection. By combining a detection signal spectrum analysis, geographic information system (GIS) data, and a cluster analysis, a soil nutrient management system to match the detection device was developed. This system included six modules: soil sample information management, electrophoresis analysis, quantitative calculation, nutrient result viewing, cluster analysis, and nut

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Ogeh, Joseph Sunday, and Rotimi Rufus Ipinmoroti. "The Status of Micronutrients and Sulphur in some Plantation Crops at Different Ages in an Alfisol of Southern Nigeria." JOURNAL OF TROPICAL SOILS 19, no. 2 (2015): 53. http://dx.doi.org/10.5400/jts.2014.v19i2.53-58.

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Abstract (sommario):

A study was conducted to assess nutrient dynamics of soils under old and young cocoa, coffee and cashew plantations and the leaf nutrient contents of the crops at Uhonmora, Edo State, Nigeria for proper cultural and soil fertility management of the plantations. Soil and crop leaf samples were collected from each plantation using random sampling technique. The samples were analyzed using standard procedures for sand, silt, clay, pH (H2O), electrical conductivity (EC), total N, available P, K, Ca, Mg, Na, Effective Cation Exchange Capacity (ECEC). Leaf samples were analyzed for N, P, K, Ca, Mg a

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Ipinmoroti, Rotimi Rufus, and Joseph Sunday Ogeh. "Soil Nutrient Dynamics under Old and Young Cocoa, Coffee and Cashew Plantations at Uhonmora, Edo State, Nigeria." JOURNAL OF TROPICAL SOILS 19, no. 2 (2015): 75. http://dx.doi.org/10.5400/jts.2014.v19i2.75-80.

Testo completo

Abstract (sommario):

A study was conducted to assess nutrient dynamics of soils under old and young cocoa, coffee and cashew plantations and the leaf nutrient contents of the crops at Uhonmora, Edo State, Nigeria for proper cultural and soil fertility management of the plantations. Soil and crop leaf samples were collected from each plantation using a random sampling technique. The samples were analyzed using standard procedures for sand, silt, clay, pH (H2O), electrical conductivity (EC), total N, available P, K, Ca, Mg, Na, and Effective Cation Exchange Capacity (ECEC). Leaf samples were analyzed for N, P, K, Ca

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Fernandes, Geraldo W., Luiz H. O. Rodarte, Daniel Negreiros, and Augusto C. Franco. "Aspectos nutricionais em Baccharis concinna (Asteraceae), espécie endêmica e ameaçada da Serra do Espinhaço, Brasil." Lundiana: International Journal of Biodiversity 8, no. 2 (2008): 83–88. http://dx.doi.org/10.35699/2675-5327.2007.23186.

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Abstract (sommario):

The growth and development of a given plant species under its natural environment is highly influenced by the nutrient availability in the soil. Although much is known about the nutritional requirements of agricultural species, the knowledge on the nutritional needs of wild species and their correlation with the available nutrients and physico-chemical properties of the soil is still rudimentary. This knowledge is crucial for the development of conservation and management of species under extinction threats. Baccharis concinna Barroso (Asteraceae) is a dioecious shrub, endemic and threatened s

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P. Kulkarni, Dr Ravindra, and Ms Ashwini G. Joshi. "A Critical Review of Chemical and Organic Fertilizers." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 12 (2024): 1–7. https://doi.org/10.55041/ijsrem39460.

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Abstract (sommario):

Organic fertilizers these are biodegradable and environmentally friendly. They can support soil health by reducing erosion and nutrient runoff. However, improper use of organic fertilizers can lead to plant nutrient deficiencies or toxicities, salt burn, and water pollution while inorganic fertilizers are synthetically derived chemicals and minerals from the earth. They provide nutrients that plants can access quickly. However, prolonged use of inorganic fertilizers can lead to soil degradation, soil acidity or alkalization, and environmental pollution. Organic fertilizer references can be obs

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Abbott, Lynette. "Soil health characteristics." Open Access Government 41, no. 1 (2024): 398–99. http://dx.doi.org/10.56367/oag-041-11193.

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Abstract (sommario):

Soil health characteristics Lynette Abbott from The University of Western Australia, places the spotlight on soil health, including its physical, chemical, biological and hydrological characteristics. Soil health encompasses its physical, chemical, biological, and hydrological characteristics. Inherent soil properties underpin how components of soil health combine to support productive agricultural or natural ecosystems. Soil health encompasses its physical, chemical, biological, and hydrological characteristics. Inherent soil properties underpin how components of soil health combine to suppor

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