文献类型： 会议论文
第一作者： Wu Chunyan
作者： Wu Chunyan 1 ; Chen Yi; Wang Jiayu; Wang Shengjia;
作者机构： 1.Institute of Environment Resource & Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
关键词： ~(15)N tracing;crop residues applied to field;rice-wheat rotation;nutrient transformation
会议名称： 3rd International Nitrogen Conference:Contributed Papers
主办单位：
页码： 115-119
摘要： The investigation of the effects of applying crop residues to nutrient transformation in ricefields by using ~(15)N trace technique was conducted during the period of 1997 rice season to 2000 wheat season. The observations showed that to apply crop residue could increase the recovery of applied N fertilizer and P, K uptake in crop straw and crop grain, and crop grain/straw yields as well as total dry matter weight. This implied that to apply crop residues in rice-wheat cropped field showed a positive effect on the crop production with less changes in soil physi-chemical properties.
分类号： O613.61
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