摘要
设置施用常规复合肥(T1)、普通尿素配方肥(T2)、控失尿素配方肥(T3)3个处理并采用基追结合的施肥方式探讨施用控失尿素对土壤养分含量及水稻产量、氮肥偏生产力的影响,以期为控失尿素的大面积推广应用提供理论依据和技术支撑。结果表明,与T1、T2处理相比,施用控失尿素配方肥能够显著提高土壤养分含量;施用控失尿素配方肥能够增加水稻有效穗数、穗粒数和结实率,进而显著增加水稻产量,增幅分别达到15.26%、9.91%;施用控失尿素配方肥能够显著提高氮肥偏生产力,增幅分别达到8.75%、9.92%。综上,控失尿素能够提高土壤养分含量、氮肥偏生产力,进而提高水稻产量,具有大面积推广应用的潜力。
Three treatments were designed, including conventional compound fertilizer treatment （T1） , urea formula fertilizer treatment （ T2 ） and loss-control urea formula fertilizer treatment （T3）, and the effect of loss-control urea on soil nutrient content, production of rice and nitrogen partial factor productivi- ty was studied using fertilization methods of the combination of base application and top application, so as to provide theory basis and technology support for the extension and application of loss-control urea. The results showed that compared to the T1 and T2 treatments, the application of loss-control urea could sig- nificantly increase the soil nutrient content, enhance the effective panicles number, grains number per spike and seed setting rate, which led to the significant increase of the production of rice by 15.26% , 9.91% respectively ; the application of loss-control urea could significantly increase the nitrogen partial factor productivity by 8.75% and 9.92% respectively. In summary,the loss-control urea could increase the soil nutrient content, nitrogen partial factor productivity and the yield of rice, which had the potential for extension and application in large area.
出处
《河南农业科学》
CSCD
北大核心
2015年第10期73-75,共3页
Journal of Henan Agricultural Sciences
基金
国家自然科学基金青年基金项目(41401274)
关键词
控失尿素
水稻
产量
土壤养分
loss-control type urea
rice
yield
soil nutrient
