共 5 条
太湖地区稻田氮肥吸收及其利用的研究
被引：12
作者：
宋勇生
范晓晖
机构：
[1] 中国科学院南京土壤研究所,中国科学院南京土壤研究所南京,南京
来源：
关键词：
Rice;
Nitrogen fertilizer;
Nitrogen utilization efficiency;
D O I：
10.13287/j.1001-9332.2003.0460
中图分类号：
S143 [化学肥料];
学科分类号：
摘要：
The effects of different amounts and kinds of nitrogen fertilizer on rice yield and its nitrogen uptake and utilization were studied on a main paddy soil (Wushan soil) of Taihu area. The results indicated that the optimal amount of nitrogen fertilizer was about 180 kg N·hm -2 for rice production. Applying ammonium sulfate was better than applying urea for increasing rice yield. The efficiency of nitrogen fertilizer in this experiment was about 41.8～48.5%, and its loss was 22.8～38.1% .
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页码：2081 / 2083
页数：3
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