水肥一体化条件下不同栽植密度对玉米生长的影响  

Effect of Different Planting Density on Maize Growth Under the Condition of Water and Fertilizer Integration

作　　者：郑丽萍[1] 刘海[1] 李作一[1] 王艳娟[1] 田森林[1] 李爱军[1] ZHENG Liping;LIU Hai;LI Zuoyi;WANG Yanjuan;TIAN Senlin;LI Aijun(Institute of Sorghum,Shanxi Academy of Agricultural Sciences,Jinzhong 030600,China)

机构地区：[1]山西省农业科学院高粱研究所,山西晋中030600

出　　处：《山西农业科学》2020年第6期927-929,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省农业科学院生物育种工程项目(17YZGC028-2)。

摘　　要：探讨在水肥一体化条件下,干旱地区不同栽植密度对玉米生长的影响。结果表明,在生育前期各处理间的生育期差异不显著,而在喇叭口期之后,低密度处理所对应的生育期出现了提前的情况,且差异显著;随着种植密度的进一步提升,株高和穗位高都在一定程度上增加;7.5万株/hm^2栽植密度所得到的理论产量(14010 kg/hm^2)和实际产量(12243 kg/hm^2)均最高。7.5万株/hm^2为最佳栽植密度。Under the condition of water and fertilizer integration,the effect of different planting density on maize growth in arid area was discussed.The results showed that there was no significant difference in the growth period between the treatments in the early growth stage,but after the bellmouth stage,the growth period corresponding to the low-density planting treatment appeared in advance,and the difference was significant.With the further increase of planting density,plant height and ear height increased to a certain extent.The theoretical yield and actual yield of 75000 plants/hm^2 was 14010,12243 kg/hm^2,respectively,which were all the highest.So,75000 plants/hm^2 is the best planting density.

关 键 词：水肥一体化 玉米 种植密度 增产 

分 类 号：S513[农业科学—作物学]