中国水稻科学2013，Vol.27Issue(4)：440-446,7.DOI:10.3969/j.issn.1001-7216.2013.04.015
氮肥运筹对膜下滴灌水稻生长和产量的影响
Effects of Nitrogen Management on Growth and Grain Yield of Rice under Drip Irrigation with Plastic Film Mulching
摘要
Abstract
Effects of N-appliation rates and fertilization strategies on dry matter accumulation dynamics and grain yield components under drip irrigation were studied with T-04 as material with plastic film mulching.Four N application rates (0,200,270,340 kg/hm2) and 3 N-application strategies (basal∶tillering∶spikelet-promoting∶spikeletprotecting fertilizer =15∶30∶40∶15,25∶40∶30 ; 5,40∶15∶35∶10) were designed.The results indicated that N-application rates significantly improved the dry matter accumulation and grain yield,with N application of 270 kg/hm2 showing the maximum dry matter accumulation and the highest grain yields (9657.7 kg/hm2) at the four N application levels.N application rates significantly affected number of tillers,number of effective panicles,productive tiller ratio,grain number per panicle,filled grain number and grain weight.N fertilization strategy particularly significantly affected effective panicle number and productive tiller ratio.The strategy that N split at basal∶tillering ∶spikelet-promoting:spikelet-protecting fertilizer by 15∶30∶40∶15 harvested the highest yield in the three strategies,indicating that N application at late growth stage can increase rice effective panicle number,productive tiller ratio and grain yield subsequently.All above suggested that N rate at 270 kg/hm2 and split by basal∶tillering ∶spikelet-promoting∶spikelet-protecting at 15∶30∶40∶15 was a sound solution for rice cultivation under drip irrigation with plastic film mulching.关键词
膜下滴灌/水稻/产量/产量形成因子/氮肥运筹Key words
drip irrigation with plastic film mulching/ rice/ grain yield/ grain yield components/ nitrogen management分类
农业科技引用本文复制引用
朱齐超,危常州,李美宁,朱金龙,吴诚,王佳..氮肥运筹对膜下滴灌水稻生长和产量的影响[J].中国水稻科学,2013,27(4):440-446,7.基金项目
国家863计划资助项目(2011AA100508) （2011AA100508）
新疆生产建设兵团杰出人才基金资助项目(2011CD004). （2011CD004）
