种植密度与肥料运筹对“新丹336”玉米冠层透光率及产量的影响  

Effect of Planting Density and Fertilizer Management on“Xindan 336”Maize’s Canopy Light Transmittance and Yield

作　　者：王春莲[1] 鞠方成[1] 王亮[2] 丛崇 WANG Chun-lian;JU Fang-cheng;WANG Liang;CONG Chong(School of Agriculture,Eastern Liaoning University,Dandong 118003,China;Dandong Academy of Agricultural Sciences,Dandong 118109;Xifeng County Agriculture and Rural Bureau,Tieling 112499,China)

机构地区：[1]辽东学院农学院,辽宁丹东118003 [2]丹东农业科学院,辽宁凤城118109 [3]西丰县农业农村局,辽宁铁岭112499

出　　处：《辽东学院学报（自然科学版）》2020年第3期159-164,共6页Journal of Eastern Liaoning University:Natural Science Edition

基　　金：辽宁省农业重大专项(2019JH1/10200001-9);辽东学院科研项目(2019210605000136);辽东学院青年基金项目(2017QN048)。

摘　　要：以“新丹336”玉米新品种为试验材料,采用二因素裂区试验设计,肥料运筹做主区,设3个水平,种植密度做副区,设4个水平,主区重复3次,研究密度与肥料运筹对“新丹336”玉米叶面积指数、冠层透光率、产量及产量构成因素的影响。结果表明:肥料运筹和种植密度的互作对玉米品种“新丹336”主要生育期叶面积指数、冠层透光率、产量、穗长和穗粒数有极显著的影响,当施用肥料纯N 220 kg/hm^2、P 2O 5110 kg/hm^2、K 2O 140 kg/hm^2,种植密度为6.75万株/hm^2时“新丹336”穗粒数最多,产量最高,效益最好。The effect of planting density and fertilizer management on "Xindan 336 "maize’s canopy light transmittance and yield was studied with two-factor split plot experiment design. The main area was used for fertilizer management with 3 levels while the subarea was used for planting density with 4 levels. The leaf area index,canopy light transmittance,yield and yield components were studied. The results showed that the interaction of fertilizer management and planting density significantly affected the leaf area index,canopy light transmittance,yield,ear length and kernels per ear. When fertilizers including pure N 220 kg/hm2,P2O5 110 kg/hm2 and K2O 140 kg/hm2 were applied and plant density was 67 500 plants/hm2,the kernels per ear,the yield and the economic benefit of "Xindan 336"reached the best.

关 键 词：玉米 种植密度 冠层透光率 肥料运筹 

分 类 号：S562[农业科学—作物学]