苏南太湖流域水稻经济生态适宜施氮量研究  

The economic and ecological satisfactory amount of nitrogen fertilizer using on rice in Tai Lake Watershed

作　　者：崔玉亭[1] 程序[1] 韩纯儒[1] 李荣刚[2] 

机构地区：[1]中国农业大学农业生态与环境系,北京100094 [2]江苏省农林厅

出　　处：《生态学报》2000年第4期658-662,共5页Acta Ecologica Sinica

基　　金："八五"国家教委博士点基金资助

摘　　要：针对苏南太湖流域无机化、高氮量施肥方式 ,造成氮肥利用率下降、水环境污染日益严重这种现象 ,研究了不同氮肥施用水平下水稻的产量、氮肥利用率及氮肥水环境损失。并在以下研究结果的基础上 ,引入环境经济学的 Coase原理和农业技术经济学的边际收益分析原理求得 ,2 2 1 .5～ 2 61 .4 kg N/hm2 为苏南太湖流域目前生产条件下 ,兼顾生产、生态和经济三效益比较合理的水稻施肥量 ,相应的经济、生态适宜产量为 7379.6～ 7548.In Tai Lake watershed the crop yield increasing has been more and more depended upon the increasing application of chemical fertilizer.The nitrogen utilization efficiency(NUE) has greatly decreased,and the water in Tai Lake is more and more polluted.We studied the rice yield,nitrogen utilization efficiency,nitrogen leaching amount at different level of nitrogen fertilizer using in paddy rice field.The results show that with the Coase Theory of Environmental Economics and the Marginal Revenue Analysis Theory of Agricultural Technology Economics,the ecological and economic satisfactory amount of nitrogen fertilizer using on rice was obtained as 221 5～261 4kg/hm\+2 under the condition of the existing agricultural production technology.

关 键 词：氮肥 水稻 施用量 产量 综合效益 

分 类 号：S511.106[农业科学—作物学]