摘要
为探明重庆地区玉米种植最佳密度,选有代表性的3个玉米品种采用裂区试验设计,研究种植密度对不同玉米品种田间主要农艺性状和产量的影响。结果表明:‘渝青玉3号’在重庆地区的适宜种植密度为45000~52500株/hm2,产量达到最高的12506.25 kg/hm2‘渝单16号’在重庆地区的最适种植密度为52500~60000株/hm2,产量达到最高的11255.7 kg/hm2,‘渝糯851’的最适种植密度在52500~60000株/hm2。产量达到最高的9209.1 kg/hm2,同品种在不同密度下产量先增后减,说明重庆地区生产上的种植密度没有达到该品种发挥高产潜力的密度。因此,重庆地区可适当增加种植密度。
In order to study the impact of planting density of major agronomic characteristics and yield of different maize varieties field, choose a local representative of the 3 maize varieties by split plot design, The results showed that, the suitable planting density of ‘Yuqingyu3' was 45000-52500 strain/hm2 in Chongqing, yield reached a maximum of 12506.25 kg/hm2; the suitable planting density of ‘Yudan 16' was 52500- 60000 strain/hm2 in Chongqing area, yield reached a maximum of 11255.7 kg/hm2; the suitable planting density of ‘Yunuo851' was 52500-60000 strain/bin2. The yield reached a maximum of 9209.1 kg/hm2. The same species in different density yield first increased and then decreased. Explain planting density did not reach the varieties play a high yield potential density on production. Therefore, the Chongqing area could be appropriately increased planting density.
出处
《中国农学通报》
CSCD
2013年第30期100-104,共5页
Chinese Agricultural Science Bulletin
基金
"十二五"主要农作物良种创新工程重大攻关项目"玉米高产高效配套新技术研究与集成示范"(cstc2012ggC80007)
国家玉米产业技术体系(CARS-02-74)
关键词
玉米
密度
农艺性状
产量
maize
density
agronomic characteristics
yield
作者简介
田红琳,1985年出生,男,重庆彭水人,助理研究员,硕士,主要从事作物栽培与耕作研究。通信地址:401329重庆市九龙坡区白市驿镇农科大道重庆市农科院玉米研究所,E—mail:thl198588@sina.com。
通讯作者:许明陆,男,1969年出生,重庆万州人,研究员,硕士,主要从事玉米栽培与农业科技管理工作。通信地址:401329重庆市九龙坡区白市驿镇农科大道重庆市农科院玉米所,E—mail:mingluemail@163.com。