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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (16): 237-243.

所属专题： 水稻

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

水稻田磷径流流失特征初步研究

张 威, ,艾绍英, ,姚建武, ,李盟军, ,杨丽娟   

  • 收稿日期:2009-04-22 修回日期:2009-04-16 出版日期:2009-08-20 发布日期:2009-08-20

Preliminary Study on Characteristics of Phosphorus Losses from Rice Fields

,Zhang Wei, , Ai Shaoying,, Yao Jianwu,, Li Mengjun,, Yang Lijuan   

  • Received:2009-04-22 Revised:2009-04-16 Online:2009-08-20 Published:2009-08-20

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摘要： 在自然降雨条件下，原位研究了广东省典型稻田地表径流氮磷输出的动态流失特征。结果表明，降雨量与产流量之量极显著正相关，但对P素流失量无明显影响；与未施肥对照(F0)相比，常规施肥(F)对P素流失没有显著影响（p > 0.05），P素流失形态以颗粒态磷(pp)为主。

关键词: 冬前高温, 冬前高温, 播期, 密度, 个体群体生长动态, 小麦

Abstract: Four in-situ experiments were conducted to investigate the runoff loss characteristic of nitrogen and phosphorus in typical rice fields in Guangdong province, South China under the condition of natural rainfall. The results showed that conventional-fertilization treatment (F) affected insignifcantly (p > 0.05) the runoff loss of phosphorus in comparison with F0. The majority of formation of phosphorus runoff loss was particulate phosphorus (pp).