不同播种量对晋阳1号夏玉米产量的影响  

Effects of Different Sowing Amount on Yield of Summer Maize Jinyang 1

作　　者：王文凡 崔福柱[1] 杨佳 刘芮芮 韩佳婷 赵贺 张伟[1] WANG Wenfan;CUI Fuzhu;YANG Jia;LIU Ruirui;HAN Jiating;ZHAO He;ZHANG Wei(College of Agronomy,Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2018年第9期1473-1476,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201503121-07);山西省重点研发计划重点项目(201703D211001-02)

摘　　要：以晋阳1号夏玉米为研究材料,采用单因素随机区组设计,对6.0万、7.2万、8.4万、9.6万、10.8万、12.0万粒/hm^2等6个播种量下的产量进行比较研究。结果表明,随着播种量的增加,夏玉米的穗长、穗粗、百粒质量、穗质量和保苗率均呈减小趋势,株高、穗位高、倒伏率、秃尖长均呈增加趋势,并获得夏玉米产量与播种量的回归方程为y=-75.992x^2+1 595.4x+652.79(R2=0.988)。确定9.6万~10.8万粒/hm^2为晋阳1号夏玉米大田种植的适宜播种量,最高产量为9 092.4 kg/hm^2。With Jinyang 1 summer maize as the research material, the paper used single-factor random block design to study the yields of six sowing amounts（60 000, 72 000, 84 000, 96 000, 108 000, 120 000 seeds/hm2）. The results showed that the ear length, ear diameter, 100 grains quality, ear quality and seedling maintained rate decreased with the increasing of sowing amount. The plant height,ear height, lodging rate and barren tip length increased with the increasing of sowing amount. The regression equation of yield and sowing amount was y=-75.992 x-2＋1 595.4 x＋652.79（R-2=0.988）. In this sense, it is concluded that 96 000-108 000 seeds/hm2 is the optimal sowing amount for field planting of summer maize with Jinyang 1, and the highest yield is 9 092.4 kg/hm2.

关 键 词：夏玉米 播种量 产量 

分 类 号：S513[农业科学—作物学]