氮肥运筹方式对杂交粳稻申优17生长和产量的影响  

Effects of Nitrogen Fertilizer Application on Growth and Yield of Japonica Hybrid Rice Shengyou 17

作　　者：方军[1] 归连发[1] 朱元宏 郭萱昊 程灿[1] 曹黎明[1] 王新其[1] FANG Jun;GUI Lianfa;ZHU Yuanhong;GUO Xuanhao;CHENG Can;CAO Liming;WANG Xinqi(Institute of Crop Breeding and Cultivation,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China;Shanghai Qingpu Modern Agriculture Park Development Co.Ltd.,Shanghai 201717,China;Training Center of Agricultural Science and Technology at Fenxian District,Shanghai 201400,China)

机构地区：[1]上海市农业科学院作物育种栽培研究所,上海201403 [2]上海青浦现代农业园区发展有限公司,上海201717 [3]上海市奉贤区农民科技教育培训中心,上海201400

出　　处：《作物研究》2020年第3期201-206,共6页Crop Research

基　　金：上海市农委科技攻关项目(沪农科攻字(2015)第6-1-3号);上海市农业科学院卓越团队建设项目(ZY1201)。

摘　　要：通过不同氮肥施用量和氮素穗肥占比的处理,研究了氮肥运筹对申优17产量及其相关农艺性状的影响。结果表明,氮肥运筹方式影响申优17产量构成和农艺性状,形成产量差异。总氮施用量240 kg/hm 2、穗肥氮占比30%时,能够协调有效穗数、穗粒数和结实率等产量因素之间的关系,有利于大穗的形成,从而获得高产。在水稻生产中,通过控制氮肥用量和优化穗肥占比,可以获得最优农艺性状,达到高产的目标。The effects of nitrogen application on yield and related agronomic traits of Shenyou17 were studied through different treatments of total nitrogen fertilizer and the proportion of nitrogen fertilizer per ear.The results showed that nitrogen fertilizer application affected the yield components and agronomic characters of Shenyou17 which led to the variation of yields.When the total nitrogen fertilizer amount was 270 kg/hm 2 and ear fertilizer accounted for 30%,it could coordinate the relationship among yield factors such as available panicle number,grains per panicle and filling rate,which was benefit to the formation of large panicle and obtain high yield.In rice production,the optimal agronomic characters can be obtained and the goal of high yield can be achieved by controlling the amount of nitrogen fertilizer and optimizing the proportion of panicle fertilizer.

关 键 词：杂交粳稻 氮肥运筹 产量 农艺性状 

分 类 号：S511.062[农业科学—作物学]