河南农业科学2011，Vol.40Issue(8)：63-66,4.
限水灌溉与施氮方式对小麦群体动态及产量的影响
Effects of Limited Irrigation and Nitrogen Application on Population Development and Grain Yields of Wheat
摘要
Abstract
Population development and grain yields of wheat under limited irrigation and nitrogen application regimes were studied in field conditions. The results showed both irrigation times and nitrogen application regimes had some effects on the population development and yields of wheat. The effect of irrigation was much greater than nitrogen application* and interaction effects were found between them. Spike number, kernel number per spike and grain yields rose gradually with increase of irrigation times. The largest 1000-kernel weight was 47. 5 g under the treatment of one-irrigation. The effect of nitrogen application regimes on yields was different under different irrigation conditions. The highest yield of 5025.1 kg/ha was obtained under the N3 treatment (60% of basic N fertilizer and the other 40% at jointing stage) without irrigation. The N4 treatment (60% of basic N fertilizer and the other 40% at booting stage) with irrigations gave highest yield of 7 633.4 kg/ha.关键词
小麦/限水灌溉/施氮方式/群体动态/产量Key words
Wheat/ limited irrigation/ Nitrogen application regimes/ Population development/ Yield分类
农业科技引用本文复制引用
姚战军,杨玉锋,陈若英,郭天财..限水灌溉与施氮方式对小麦群体动态及产量的影响[J].河南农业科学,2011,40(8):63-66,4.基金项目
国家重点基础研究发展规划“973”项目(G2000077900) （G2000077900）
河南省重大科技攻关项目(122012300) （122012300）
