Soil and nitrogen supply
Soil nitrogen supply rates during a cotton season
... of nitrogen - the primary cotton plant is ...of nitrogen fertiliser applied and other components associated with fertiliser usage such as time and rate of ...varied nitrogen requirements with peak ...
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EVALUATION OF LEGUME HERBS NUTRITIVE VALUE AS A RUMINANT FEED AND NITROGEN SUPPLY ON SOIL IN WEST TIMOR, INDONESIA
... Ley farming system was done as one of efforts to maintain soil fertility. The rotation of corn and legume has good opportunity for it. It was because of the contribution in providing nitrogen for ...
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Frontiers in Nitrogen Supply from Soil to Plants
... • Efficient N management, high soil microbial activity, high available soil C and rapid plant N uptake. • The higher the SOM, the greater the biomass of microbes[r] ...
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Growth and yield of sugar beet on contrasting soils in relation to nitrogen supply: I. Soil nitrogen analyses and yield
... The increases in sugar yield from optimal nitrogen fertilizer and nitrogen uptake by the unfertilized crop were related significantly to organic carbon, total nitrogen and glucose concen[r] ...
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Microdialysis : a novel method to study plant-available nitrogen supply in boreal forest soil
... our soil samples and led to the overestimation of the diffusive fluxes of the total free amino acids and ...alter soil chemical composition by stimulating microbial degradation of amino acids into inorganic ...
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Nitrogen Supply and Management in Organic Farming
... organic soil management leads to an increase in levels of soil organic matter (SOM), resulting from large inputs of organic matter from leys and animal manure (Tinker ...on soil organic matter and ...
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Mineral nitrogen in spring in two cropping systems with permanent nitrogen supply
... different soil layer, and if farmers want to control the N leakage in deeper soil layer, they should grow some crops or catch crops which have deeper root systems like winter wheat; however, the root depth ...
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Effects of tillage practices and rate of nitrogen fertilization on crop yield and soil carbon and nitrogen
... the C:N ratio was lower than other treatments, indicating that the nitrogen supply was in excess. In conclusion, the results showed that conservation tillage with straw returned adjust the soil ...
5
Nitrogen supply through transpiration mass flow can limit nitrogen nutrition of plants
... Our results illustrate that N starvation can be expected in most cases in natural stands when water and N levels in soil are limited and N supply to the plant roots occurs predominantly by transpiration ...
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Effect of Nitrogen Addition and Weed Interference on Soil Nitrogen and Corn Nitrogen Nutrition
... of Nitrogen Addition and Weed Interference on Soil Nitrogen and Corn Nitrogen Nutrition John ...on nitrogen (N) supply, crop growth, and N nutrition may assist in making both N ...
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Effects of Fertilizer Placement and Nitrogen Forms on Soil Nitrogen Diffusion and Migration of Red Yellow Soil in China
... the soil receiving ammonium phosphate was greater than that receiving urea under point deep ...the soil and reduce inorganic N loss, which probably occurred due to the reduced soil volume with which ...
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A review of biochar and soil nitrogen dynamics
... to soil (see below) while effects on soil water availability, root architecture, plant eco-physiology, nutrient supply, microbial form and function may also be ...induced soil physical versus ...
19
Can mineralization of soil organic nitrogen meet maize nitrogen demand?
... the supply of inorganic N using net N mineralization measurements could lead to false conclusions regarding the true N supplying capacity of ...of soil is an important biochemical indicator of SOM quality ...
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Root architecture and nitrogen metabolism in roots of apple rootstock respond to exogenous glucose supply in low carbon soil
... 50 seedlings were treated with glucose C five times the soil MBC value (G 2 , 15.0 g/kg glucose); and 50 seedlings were not treated with glucose (CK). The glucose was dissolved in 150 mL distilled water and the ...
7
Plant-microbe-soil interactions and soil nitrogen dynamics in boreal forests
... the soil layer dominated by ECM fungi (Näsholm et ...N supply in the terminated treatment stimulated greater C flow below-ground to ECM fungi, which was reflected in 15 N-depleted litter and increasing 15 N ...
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Effect of soil moisture availability and nitrogen source on nitrogen use efficiency in cereals
... N supply though there might be no significant yield advantage over conventional urea to warrant investment depending on the prevailing fertiliser price, which is highly ...
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Effect of Spentwash Application on Nitrogen Dynamics in Soil
... this soil under field condition. In control soil that has not received spentwash, the entire amount of NH 4 -N was derived mostly from the decomposition of organic N which includes the soil humus N ...
6
Single and fractioned supply of nitrogen in wheat productivity
... the nitrogen fertilization dose in wheat is determined according to the content of the organic matter of the soil, the previous crop and the productivity expectation Siqueira Neto et ...inadequate ...
7
Polyacrylamide as an organic nitrogen source for soil microorganisms with potential effects on inorganic soil nitrogen in agricultural soil
... Taken together, the successful growth of enrich- ment cultures with PAM as sole N source and the detection of PAM-specific amidase activity in these cultures indicate that indigenous soi[r] ...
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Soil Nitrogen: research and extension
... for nitrogen mineralization prediction Gerard Ros, Wageningen UR Intensive agricultural production in the last century has resulted in high N losses to the environment, which at present forms a major threat for ...
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