施用控释尿素对大豆吸氮量及产量的影响研究  

Effect of release-controlled urea application on the N uptake and yield of soybean

作　　者：焦晓光[1] 罗盛国[1] 刘元英[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《中国生态农业学报》2004年第3期95-98,共4页Chinese Journal of Eco-Agriculture

基　　金：黑龙江省留学回国人员基金资助 (L0 0C0 10 )

摘　　要：试验研究施用控释尿素对大豆吸N量及其产量与品质的影响结果表明 ,控释尿素比普通尿素N肥利用效率提高 3 0 6 %～ 1 1 93% ,沙土中尿素N残留量增加 1 2 5 %～ 1 5 89% ,大豆产量提高 2 1 6 9%～ 4 9 2 2 % ,且改善大豆品质。The effect of release controlled urea application on the N uptake, yield and quality of soybean is described in this paper. The results show that release controlled urea can increase the N efficiency by 3 06%～11 93%, increase the residual N by 1 25%～15 89% in the sandy soil, it also increases the soybean yield by 21 69%～49 22% and improves the soybean quality.

关 键 词：控释尿素 大豆 吸氮量 产量 施用效果 

分 类 号：S565.1[农业科学—作物学]