“缩行扩株”对重庆丘陵山区玉米植株性状及产量的影响  

Effects of“Shortening Row Spacing and Widening Plant Spacing”on Yield and Photosynthetic Performance of Maize in Hilly Area of Chongqing

作　　者：田红琳[1] 蒋志成[1] 刘春英 李晔[1] 周汝平 崔俊娟 胡伟[1] 许明陆[1] TIAN Honglin;JIANG Zhicheng;LIU Chunying;LI Ye;ZHOU Ruping;CUI Junjuan;HU Wei;XU Minglu(Maize Institute,Chongqing Academy of Agricultural Sciences,Chongqing 401329,China;Agriculture Commission of Shizhu County,Chongqing 409100,China;Chongqing Keguang Seed Co.,LTD.,Chongqing 400060,China)

机构地区：[1]重庆市农业科学院玉米研究所,重庆401329 [2]重庆市石柱县农委,重庆409100 [3]重庆科光种苗有限公司,重庆400060

出　　处：《耕作与栽培》2021年第2期13-15,共3页Tillage and Cultivation

基　　金：重庆市科研院所绩效激励引导专项(cstc 2018 jxjl 80047);创新团队(NKY-2018 QC 02)。

摘　　要：选用高产、稳产、广适普通玉米品种“渝单30”为研究对象,采用3500株·(667 m^(2))^(-1)的种植密度,以当地生产上常用的稀大行(1~1.2 m)为对照,采用随机区组排列,研究同密度下“缩行扩株”对渝单30植株性状及产量的影响。结果表明,渝单30在0.9 m行距时产量最高,行距间产量性状表现为0.9 m行距>0.8 m行距>0.7 m行距>1 m行距>1.2 m行距>0.6 m行距。因此,重庆丘陵山区将现有生产上“稀大行”种植模式改为0.9 m、0.8 m行距,同单位土地面积上可以增加种植行数,集约化利用土地,减少漏光损失,平衡种群内竞争,最终提高单位面积产量。The high yield,stable and widely suitable maize variety“Yu Dan 30”was selected as the research object,with the sparse row(1-1.2 m)used by the common people as the control,and the random area arrangement was used to study the effect of different row spacing on the yield and plant traits of Yu Dan 30 under the same density,seeking to construct a high yield population by changing the line spacing.The results showed that the yield of Yu Shan 30 was the highest at 0.9 meter distance,and the yield characters among row spacing were 0.9 meters distance>0.8 meters distance>0.7 meters distance>1 meter distance>1.2 meter distance>0.6 meter distance,and the existing thin row planting pattern was 0.9 or 0.8meters distance.So on the same land area,intensive use of land,reduce the loss of light loss could increase planting number and balance the competition within the population and finally improve output per unit area.

关 键 词：玉米 株行距 产量 研究 

分 类 号：S513[农业科学—作物学]