不同时期氮肥施用量对寒地粳稻东农428产量的影响  

Effects of Fertilizing Nitrogen Fertilizer at Different Stages on Japonica Rice Variety "Dongnong 428" in Cold Region

作　　者：洛育[1] 孙世臣[1] 张凤鸣[1] 白良明[1] 姜辉[1] 姜树坤[1] 尹春佳[2] 赵明珠[2] 

机构地区：[1]黑龙江省农业科学院耕作栽培研究所/国家水稻产业技术体系哈尔滨综合试验站,黑龙江哈尔滨150086 [2]农垦建三江分局勤得利农场,黑龙江佳木斯156426

出　　处：《作物杂志》2011年第6期73-76,共4页Crops

基　　金：黑龙江省科技攻关计划项目(GA09B102-2);十二五国家科技支撑计划项目(2011BAD16B11);现代农业产业技术体系建设专项资金

摘　　要：以东农428为材料,采用田间小区试验,二次回归旋转组合设计,在4个施肥时期开展了不同施氮量的研究。结果表明,东农428在9 750kg/hm2目标产量下,不同施肥时期高产的施氮量为:底肥施氮量61.82～66.52kg/hm2,返青分蘖肥施氮量35.70～40.97kg/hm2,穗肥施氮量27.23～32.78kg/hm2,粒肥施氮量27.23～32.78kg/hm2。底肥和返青分蘖肥氮肥施用对东农428产量的效应较大,东农428最高理论产量为10 404.6kg/hm2。＂Dongnong428＂ was used to investigate influences of nitrogen fertilizer on yield at different nitrogen fertilizer levels in 4 periods by using orthology regression rotating method.The results showed that the nitrogen fertilizing model of ＂Dongnong428＂ with the yield of above 9 750kg/hm2 were base fertilizer of 61.82~66.52kg/hm2,tillering fertilizer of 27.23~32.78kg/hm2 and panicle initiation fertilizer of 27.23~32.78kg/hm2.The effects of base fertilizer and tillering fertilizer on yield of ＂Dongnong428＂ were greater than fertilizing at other stages.The highest theoretical yield of ＂Dongnong428＂ was 10 404.6kg/hm2.

关 键 词：粳稻 氮肥 产量 

分 类 号：S511.22[农业科学—作物学]