摘要
以超级稻盐丰47为材料,采用小区对比试验方法,探讨了氮肥运筹对滨海稻区水稻生育性状、产量及氮素利用率的影响。结果表明：基肥、蘖肥与穗肥比例2∶5∶3的B处理,获得了单产10.40t·hm^-2,比A处理（2∶4∶4）、C处理（2∶6∶2）、D处理（2∶8∶0）分别增产了3.5%、3.9%和7.7%;其单位面积有效穗数及颖花数、生物产量及抽穗至成熟期干物质积累量占产量的百分比、氮肥利用率均高于A、C、D处理。
The effects of nitrogen fertilizer applications on characters,yield and nitrogen-utilized efficiency were studied with Super-rice-Yanfeng 47.The results indicaded that the nitrogen fertilizer application B with the ratio of basal fertilizer： tiller fertilizer： panicle fertilizer of 2∶5∶3 had a yield of 10.40 t·hm^-2 and increased by 3.5%,3.9% and 7.7% respectively comparing with C（2∶6∶2）,A（2∶4∶4） and D（2∶8∶0）.Meantime,the productive panicles and spikelet number per unit area,and the percent of dry matter accumulation content and the nitrogen-utilized efficiency from heading to maturing were the highest in B among all nitrogen fertilizer applications.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2010年第3期327-330,共4页
Journal of Shenyang Agricultural University
基金
国家科技部星火计划项目(2004E650052)
辽宁省科技攻关项目(2008201003)
关键词
氮肥运筹
叶面积指数
干物质积累量
产量
氮素利用率
100kg籽粒吸氮量
nitrogen fertilizer application
LAI
dry matter accumulation content
yield
nitrogen-utilized efficiency
N-absorption content per 100kg grains
