Effects of nitrogen fertilizer application rates on nitrate nitrogen distribution in saline soil in the Hai River Basin,China |
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| Authors: | Fei Yin Bojie Fu Renzhao Mao |
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| Institution: | 1.State Key Lab. of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,P.R. China;2.Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Shijiazhuang,P.R. China |
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| Abstract: | Background and Objectives Soil nitrate nitrogen (NO3
−-N) accumulation is related closely to NO3
− leaching, which is an important issue in groundwater pollution, especially in intensive agricultural areas with saline soils
where volumes of water are used in irrigation to avoid salt accumulation in the root zone. However, in the saline environment
in Hai River Basin, China, the importance of detailed research into NO3
−-N distribution in the root zone has not been adequately recognized. Considering the impacts of eco-environmental system N
and crop production, the present study aimed at contributing to an understanding of the effects of N application rate on soil
NO3
−-N distribution, NO3
−-N residue, N loss, and maize (Zea mays L.) yield in this region. |
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| Keywords: | |
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