中国稻米Issue(6)：72-76,5.DOI:10.3969/j.issn.1006-8082.2015.06.015
优化肥水管理对直播稻产量形成及群体质量的影响
Effects of Optimized Fertilizer and Water Management on Yield Formation and Population Quality in Direct-sowing Rice
摘要
Abstract
Field experiments were carried out to study the effects of two kinds of fertilizer and water management mode on yield for-mation and population quality in direct-sowing rice, using Wuyunjing 23 as material. The results showed that:(1) On the basis of ac-cess to appropriate panicle number, the grain number per panicle and grain weight increased under optimized management of fertilizer and water. The average yield achieve 619.5 kg/667 m2 by optimized management, increasing 44.5 kg/667 m2 and 7.74 percent com-pared with the conventional management of fertilizer and water.(2) Through reasonable management of water and fertilizer, optimized management controls the occurrence of low tiller on main stem, boosts median tiller becoming panicle, reduces the peak seedlings, im-proves the spike rate, promotes strong stalk and big spike, increases dry matter accumulation after heading, and significantly increases the yield of direct-sowing rice.关键词
肥水管理/直播稻/产量/群体质量Key words
fertilizer and water management/direct-sowing rice/yield/population quality分类
农业科技引用本文复制引用
周正权,周波,陈奇,徐子强,马晓红..优化肥水管理对直播稻产量形成及群体质量的影响[J].中国稻米,2015,(6):72-76,5.基金项目
江苏省“农业三新”工程项目[SXGC（2012）027]；江苏省第四期“333工程”培养资金资助项目 （）
