施用控释尿素对大豆吸氮量及产量的影响研究

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

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3．06％～11．93％，沙土中尿素N残留量增加1．25％～15．89％，大豆产量提高21．69％～49．22％，且改善大豆品质。

Abstract: 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 soybeslq yield by 21．69％-49．22％ and improves the soybean quality．