氮肥运筹对不同生育期晚稻品种产量及氮素吸收利用的影响  

Effects of Nitrogen Fertilizer Planning on Yield and Nitrogen Absorption and Utilization of Late Rice Varieties with Different Growth Duration

作　　者：陈爱忠[1] 潘晓华[1] 吴建富[1] 石庆华[1] 杨上勤 

机构地区：[1]江西农业大学作物生理生态与遗传育种教育部重点实验室农业部双季稻生理生态与栽培重点开放实验室江西省作物生理生态与遗传育种重点实验室,南昌330045 [2]进贤县三里乡农技站,江西进贤331700

出　　处：《作物研究》2011年第1期4-6,10,共4页Crop Research

基　　金：国家"十一五"科技支撑计划项目(2006BAD02A04);江西省科技攻关项目(20051B020010);南昌市科技攻关项目

摘　　要：以6个生育期不同的晚稻品种为材料,研究了不同生育期品种对不同氮肥运筹比例的响应。结果表明,早熟品种在基蘖肥∶穗肥为7∶3时的产量高于6∶4时的产量,而中、迟熟品种中既有在7∶3时表现为产量较高的品种,也有在6∶4时表现为产量较高的品种。而不同氮肥运筹比例对不同生育期晚稻品种间的氮素吸收利用的影响与品种熟期之间没有明显的规律性。The responses of six late rice varieties with different growth duration to different ratios of basic tillering fertilizer to panicle fertilizer,7∶3 and 6∶4,were studied.The results showed that the yield of early maturing varieties（growth duration 110 d） in 7∶3 treatment were higher than those in 6∶4 treatment,while among middle maturing varieties（growth duration 110～120 d） and late maturing varieties（growth duration120 d）,some gained higher yield in 7∶3 treatment and others gained higher yield in 6∶4 treatment.There was no evident correlation between effect of different ratios of basic tillering fertilizer to panicle fertilizer on nitrogen absorption and utilization and maturation period of varieties.

关 键 词：晚稻 施肥 施氮比例 氮素利用率 

分 类 号：S511.330.62[农业科学—作物学]