期刊论文

中文

中国稻米

1006-8082

2024

30

02

26-30

10.3969/j.issn.1006-8082.2024.02.005

CARS-01-27:国家水稻产业技术体系项目

本校为第一机构

采用裂区设计,探究了不同氮肥运筹方式对有序机抛晚稻生长发育、产量和氮肥利用率的影响.主区为施氮量(N),设 3 个水平,分别为 120 kg/hm2(N1)、150 kg/hm2(N2)和 180 kg/hm2(N3);副区为氮肥分配比例(基肥:分蘖肥:穗肥),设 4个水平,分别为 1∶1∶1(T1)、0∶1∶1(T2)、1∶0∶1(T3)和 1∶1∶0(T4).以农民习惯施肥为对照(CK,氮肥用量120 kg/hm2,基肥∶分蘖肥∶穗肥=5∶3∶2),另设一不施氮处理(N0).结果表明,相同施氮量下,T2 处理的水稻产量显著低于T1、T3 和T4 处理及CK,T4 处理的产量高于T1 处理和CK.表明施用基肥有助于提高有序机抛晚稻的产量.氮肥利用方面,T2 处理的氮肥利用率显著低于其他处理...

A split plot experimental design was used to explore the effects of different nitrogen fertilizer management methods on the growth and development,yield,and nitrogen fertilizer utilization efficiency of ordered mechanical throwing late rice Jiayouchangjin.The main plot is the nitrogen application rate(N),with three levels set,namely 120 kg/hm2(N1),150 kg/hm2(N2),and 180 kg/hm2(N3).The sub plot is the distribution ratio of nitrogen fertilizer(base fertilizer:tillering fertilizer:spike fertilizer),with four levels set,namely 1:1:1(T1),0:1:1(T2),1:0:1(T3),and 1:1:0(T4).Using farmers'habitual fert...