引黄灌区玉米种植密度对不同品种产量和产量构成因素的影响研究  

Effect of Maize Planting Density on Yields and Yield Components of Various Varieties in Yellow River Irrigation Area

作　　者：王斐[1] 安磊[1] 赵娟[1] 柳伟祥[1] 谢铁娜[2] 郭永宁[2] 薛国屏 

机构地区：[1]宁夏大学农学院,宁夏银川750021 [2]宁夏大学试验农场,宁夏永宁750105 [3]宁夏种子公司,宁夏银川750001

出　　处：《宁夏农林科技》2013年第5期1-3,16,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：2012年宁夏科技推广项目-宁夏引黄灌区高产优质玉米新品种及超高产栽培术示范与推广

摘　　要：大田栽培条件下采用裂区设计对宁夏引黄灌区主栽的6个玉米品种设置3种不同种植密度进行产量潜力研究。结果表明:先玉335、正大12、宁玉524、LB-5的产量随种植密度的增加而增加,郑单958的产量随密度的增加而降低,且密度对产量的影响不显著;东单60的产量随种植密度的增加先降低后升高,且种植密度对产量的影响具有显著性。综观不同玉米品种不同种植密度下的产量差异可以看出,宁夏引黄灌区主栽的6个玉米品种产量范围为14 553.00～19 181.10kg/hm2,LB-5在不同种植密度下的产量较其他品种的产量变化显著。A study was conducted on the potential yields of 6 maize varieties as the main varieties in Yellow River Irrigation Area of Ningxia at 3 different planting density adopting split pint design under field cultivation conditions. The results showed that the yields of Xianyu 335, Zhengda 12, Ningyu 524 and LB-5 increased with the increases of the planting den- sity, the yield of Zhengdan 958 decreased with the increase of the planting density and the effect of the planting density on the yield was not significant, the yield of Dongdan 60 decreased first and then increased with the increase of the planting density and the effect of the planting density on the yield was significant. It can be seen from the differences in the yield of different maize varieties under the different planting density that the yield range of 6 maize varieties are from 14 553.00 kg/hm2 to 19 181.10 kg/hm2 and the yield of LB-5 changes more significantly than those of the other varieties under the different planting density.

关 键 词：玉米 种植密度 产量 引黄灌区 

分 类 号：S513[农业科学—作物学]