不同行距及密度对夏玉米产量及其构成因素的影响  

Effects of Different Row Spacing and Density on Summer Maize Yield and Its Constituent Factors

作　　者：罗峣 苏昱生 Luo Yao;Su Yusheng(Fengcheng Agriculture Forestry Water Conservancy Service Center,Fengshan 547600,Guangxi Zhuang Autonomous Region,China;Jiangzhou Yao Township Agriculture Forestry Water Conservancy Service Center,Fengshan 547611,Guangxi Zhuang Autonomous Region,China)

机构地区：[1]凤山县凤城镇农业林业水利服务中心,广西壮族自治区凤山547600 [2]凤山县江洲瑶族乡农业林业水利服务中心,广西壮族自治区凤山547611

出　　处：《农业技术与装备》2023年第7期184-186,共3页Agricultural Technology & Equipment

摘　　要：选取凤山县玉米主要栽培品种——正大719作为试验对象,通过设置不同种植行距和不同种植密度,研究其对玉米产量的影响。试验结果表明,当密度相同时,玉米的株高、穗高、千粒质量、产量随着行距的增加表现为一致性。当行距为60 cm和70 cm时,玉米产量随着密度的增加表现为先增加后减少,当行距为80 cm时,玉米产量随着密度的增加而增加。综上所述,在行距80 cm、密度90000株/hm^(2)时正大719玉米产量最大,可以为夏玉米适宜行距密度的确定提供参考。Zhengda 719,the main maize cultivar in Fengshan County,was selected as the experimental object to study the effect of different planting row spacing and planting density on maize yield.The experimental results showed that the plant height,ear height,thousand grain weight and yield of maize were consistent with the increase of row spacing when the density was the same.When the row spacing was 60 and 70 cm,the maize yield increased first and then decreased with the increase of density.When the row spacing was 80 cm,the maize yield increased with the increase of density.In summary,Zhengda 719 maize yield was the highest when the row spacing was 80 cm and the density was 90000 plants/hm^(2),which could provide a reference for determining the appropriate row spacing density of summer maize.

关 键 词：行距 密度 夏玉米 产量 

分 类 号：S352.3[农业科学—作物栽培与耕作技术] S513[农业科学—农艺学]