中文摘要：

2013年10月-2014年6月在河南省商丘市民权县布置田间小区试验,研究施用控释BB肥对冬小麦产量及其构成要素、植株各部位对氮素吸收与累积及氮肥利用率的影响。结果表明,施用控释BB肥在所有处理中效果最佳,较农民习惯施肥在穗粒数、理论产量、实际产量、生物产量及收获指数等指标上分别增加20.61%、27.08%、8.41%、5.87%、4.44%;在籽粒氮质量分数、氮素累积量上分别增加24.81%、28.47%;在氮肥利用效率、氮肥贡献率上较农民习惯施肥分别增加89.56%、15.24%。施用控释BB肥在减氮20%的条件下,较农民习惯施肥和普通BB肥在冬小麦产量上没有显著的影响,但提高植株各部位对氮素的吸收及累积作用,同时明显提高氮肥的利用效率。说明,施用控释BB肥可以明显提高冬小麦产量及其构成要素,增加植株对氮素的吸收及累积量,提高氮肥利用率。

英文摘要：

In order to study the effect of release-controlled bulk blending（BB）fertilizer application on the yield,yield components,nitrogen（N）absorption and accumulation of each organ,as well as nitrogen utilization efficiency（NUE）in winter wheat,a field experiment was conducted from October 2013 to June 2014 at Minquan,Shangqiu,Henan province.The results showed that the release-controlled BB fertilizer application had better effect than other treatments.Compared with the farmers＇ fertilization,release-controlled BB fertilizer application increased grain number per spike,theoretical yield,actual yield,biological yield,harvest index,N mass fraction and accumulations in grain,NUE and N contribution rate by 20.61%,27.08%,8.41%,5.87%,4.44%,24.81%,28.47%,89.56%and 15.24%,respectively.Under the condition of 20% reducing N application based on the releasecontrolled BB fertilizer application,the yield was not affected,but N absorption and accumulation,NUE increased significantly comparing with the farmers＇ fertilization and ordinary BB fertilizer application.In short,the lose-controlled BB fertilizer application could significantly improve yield and yield components,N absorption and accumulation and NUE.