soil fertility indication Articles
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Interactive effects of landscape position and time of application on the response of spring wheat to fall-banded urea
The objective of this experiment was to quantify the effect of landscape position and time of application on the agronomic efficiency of fall-banded urea [CO(NH2)2] for spring wheat (Triticum aestivum L.) grown in the eastern prairie region of Canada. Landscape positions in this experiment were defined as high and low based on their relative elevations to one another within the field. Fertilizer ...
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Characterizing and classifying variability in corn yield response to nitrogen fertilization on subfield and field scales
Marked spatial and temporal variability in yield response to N fertilizer observed in individual yield response trials creates a high degree of uncertainty when estimating economic optimum rates (EORs) of N for a group of trials and when extrapolating these rates from one location to another. A survey was conducted to characterize and classify variability in yield response to N on subfield and ...
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Characterizing and Classifying Variability in Corn Yield Response to Nitrogen Fertilization on Subfield and Field Scales
Marked spatial and temporal variability in yield response to N fertilizer observed in individual yield response trials creates a high degree of uncertainty when estimating economic optimum rates (EORs) of N for a group of trials and when extrapolating these rates from one location to another. A survey was conducted to characterize and classify variability in yield response to N on subfield and ...
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Unlocking Precision and Sustainability with Portable Soil EC Detectors
For millennia, farmers have tilled the land, guided by intuition and tradition. But beneath the surface, in the hidden realm of the soil, lies a powerful language waiting to be deciphered. A language not of words, but of electrical whispers, dictating the very foundation of plant growth and ecosystem health. This language is spoken in terms of Electrical Conductivity (EC), and to understand it, ...
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Fertilizer application timing influences greenhouse gas fluxes over a growing season
Microbial production and consumption of greenhouse gases (GHG) is influenced by temperature and nutrients, especially during the first few weeks after agricultural fertilization. The effect of fertilization on GHG fluxes should occur during and shortly after application, yet data indicating how application timing affects both GHG fluxes and crop yields during a growing season are lacking. We ...
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Effects of agricultural production on phosphorus losses from paddy soils: a case study in the Taihu Lake Region of China
A field plot experiment was conducted on two types of paddy soils in the Taihu Lake Region of China from June 2000 through 2002 to assess phosphorus (P) losses by runoff and drainage flow and the effectiveness of rice–wheat double cropping on reducing P losses from paddy soils. Commercial NPK compound fertilizer and single superphosphate fertilizer were applied to furnish 0, 30, 150, and 300 kg P ...
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