基于叶龄管理的氮肥运筹模式对松嫩平原西部膜下滴灌玉米产量及干物质积累的影响  

Effect of Nitrogen Fertilizer Application based on Leaf Age Management on Yield and Dry Matter Accumulation of Maize under Mulched Drip Irrigation in Western Songnen Plain

作　　者：刘慧迪[1,2] 杨克军[1,2] 李佐同[1,2] 王玉凤[1,2] 张翼飞[1,2] 王智慧[1,2] 付健[1,2] 谷英楠[1,2] 杨系玲 吴琼[1,2] 

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319 [2]黑龙江省教育厅寒地作物种质改良与栽培重点实验室

出　　处：《黑龙江八一农垦大学学报》2016年第3期23-27,共5页journal of heilongjiang bayi agricultural university

基　　金：国家科技支撑计划项目(2013BAD07B01-02);粮丰工程项目(2011BAD16B11-03);黑龙江省农垦总局科技计划项目(HNK125B-07-12)

摘　　要：采用膜下滴灌的栽培模式,研究同一氮肥运筹对玉米不同叶龄时期的产量及干物质积累的影响。结果表明:在叶龄指数为30%和45%分次等量追施氮肥处理时,玉米产量、叶面积指数、叶绿素含量、干物质积累量达到最大值,且可实现籽粒产量、干物质积累量、花后同化物输入籽粒量及花后同化物对籽粒的贡献率分别为15 785.79 kg·hm^(-2)、429.14 g·株-1、14 762.75 kg·hm^(-2)、89.29%。Effect of same nitrogen fertilizer application on yield and dry matter accumulation of maize at different leaf ages was studied by useing mulched drip irrigation cultivation model. The results showed that when same amount topdressing nitrogen fertilizer was applied at 30% and 45% leaf age index,the grain yield,leaf area index,chlorophyll content and dry matter accumulation achieved the maximum value,and the resulting grain yield,dry matter accumulation,post-anthesis dry matter accumulation,contribution of post-anthesis assimilates to grains were 15 785.79,429.14,14 762.75,89.29%,respectively.

关 键 词：玉米 膜下滴灌 叶龄指数 产量 干物质积累 

分 类 号：S513[农业科学—作物学]