Title: Effects of Nitrogen Fertilizer in Winter wheat on Its Utilization Rate and Dynamic Distribution of NO - 3N in Soil Layers
Abstract: Based on the field experiments of six levels of nitrogen fertilizer in winter wheat, the effects of N fertilizer on its utilization rate and dynamic distribution of soil NO - 3N were studied. The results indicates that nitrogen fertilizer utilization rate reduced with the amount of N fertilizer applying, but on the contrast ,the content of soil NO - 3N increased with amount of N fertilizer applied, and under the same level of nitrogen fertilizer,the content of soil NO - 3N increase from topsoil to deep layer of soil (100cm) During the growth of winter wheat, the substancial amount of NO - 3N accumulated in soil layer of 80cm to 100cm, showing a large potential to be leached into ground water and environment.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
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Cited By Count: 1
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