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Nutrient Losses

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Crop residue burning and the loss of nutrients from fertilizers

Fate of topdressed fertilizers when stubbles are burned.

Study on N and P runoff losses from cotton field in Jianghan Plain of Hubei

N and P are not only the main plant nutrition but also the main non-point pollution substances of farmland. As the great demand of agricultural production in China, more and more N and P fertilizers w ...

NuGIS: Nutrient Use Geographic Information System

The Nutrient Use Geographic Information System (NuGIS) integrates multiple tabular and spatial datasets to create county-level estimates of nutrients applied to the soil in fertilizer and livestock ma ...

Project Description - Determining the Environmental Optimum Rate of Fertilizer N for Irrigated Crops in the Semiarid Prairies

Objectives: The primary goal of this project is to identify the environmental optimum rate of fertilizer N (i. e. , the rate that provides the greatest yield increase with the lowest FIE) for irrigate ...

2011 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

Elevated atmospheric CO2 affects growth and yield which then affect processes controlling the supply and losses of N to sustain these increases. This research was undertaken to measure the effects of ...

2010 Annual Interpretive Summary - Nitrogen dynamics under elevated carbon dioxide

The effect of elevated carbon dioxide concentration ( CO2 ) on greenhouse gas emissions from semi-arid cropping systems is poorly understood. Two studies were reported during 2010, one from the Austra ...

Nitrogen dynamics under elevated carbon dioxide

How will high carbon dioxide concentrations affect the cycling of nitrogen in crop production systems.