密度与施氮量对不同玉米品种产量及穗部性状的影响  

Effect of Density and Nitrogen on Yield and Spike Character of Different Variety Maize

作　　者：李素萍[1] 南文华[2] 郝建平[1] 薛吉全[2] 

机构地区：[1]山西农业大学,山西太谷030800 [2]西北农林科技大学农学院,陕西杨凌712100

出　　处：《西北农业学报》2007年第5期80-83,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：山西省科技攻关项目(2006031041)

摘　　要：以陕单8806、郑单958和京科28三个玉米杂交种为材料,采用L9(34)正交设计,研究不同类型玉米品种在不同密度和不同施肥水平下玉米穗部性状及产量的变化规律。结果表明,三因素对玉米产量的影响效果依次为品种、施氮量、密度,在一定范围内,低氮(112.5 kg/hm2)、密植(82 500株/hm2)可以提高玉米的产量,并找到适宜当地种植的玉米高产栽培的实际和理论优化组合。Effect of different density and nitrogen quantity on yield and spike character of different va- riety maize were studied in L9（3^1）orthogonal experiment. Shaandan 8806, Zhengdan 958 and Jingke 28, were used. The result showed that the influence of three factors on yield and spike character of different variety maize was variety, nitrogen, density in order. In a certain range, the yield could increase by plant density（8 2500 plant/hm^2）withlownitrogen（112.5 kg/hm^2）. Based on the analysis of orthogonal experiment, the best cultivation way was made.

关 键 词：玉米 品种 密度 氮肥 穗部性状 产量 优化组合 

分 类 号：S513[农业科学—作物学]