安徽农业大学学报2011，Vol.38Issue(1)：1-5,5.DOI:CNKI:34-1162/S.20110107.1518.010
氮肥运筹对机插杂交中籼水稻群体质量及产量形成的影响
Effects of nitrogen management on mass quality and yield formation of machine transplanted middle-season Indica hybrid rice
摘要
Abstract
A split plot experiment in the fields was conducted to study the effects of different fertilizer-N managements on quality index of machine transplanted middle-season Indica hybrid rice. The nitroge(n) was ap plied in three levels and panicle fertilizer was in two ratios. The results showed that the scheme of 210 kg·hm-2 N application rate and the ratio of basic-tillering to panicle and grain fertilizer being 6: 4 was helpful in decreasing the population of stems and tillers gently, decreasing the number of the inefficient tiller, increasing effective spike number per plant, and coordinating contradiction between individual and population. Moreover, it improved leaf area index (LAI), increased the accumulation of dry matter and optimized the population quality at the middle and late growth stage. This fertilizer-N management was beneficial to cultivate big spike, to enhance seed setting rate and 1000-grain weigh stably, to harmonize yield composing factors and the highest grain yield, which was the high efficient cultivated technique of machine transplanted middle-season Indica hybrid rice and would be the recommended nitrogen management in the Jianghuai Region of Anhui Province.关键词
杂交中籼水稻/机插栽培/氮肥/群体质量/产量Key words
middle-season Indica hybrid rice/ machine transplanted/ nitrogen/ quality ofpopulation/ grain yield分类
农业科技引用本文复制引用
吴文革,张玉海,张健美,许有尊,何超波,李霞红,徐长斌,李福军,陈学英..氮肥运筹对机插杂交中籼水稻群体质量及产量形成的影响[J].安徽农业大学学报,2011,38(1):1-5,5.基金项目
国家科技支撑计划(2006BAD02A06-23 （）
2007BAD89B10)资助. （）
