适宜重庆地区周年光温资源的玉米栽培技术  

Suitable Maize Cultivation Techniques for the Annual Light and Temperature Resources in Chongqing

作　　者：田红琳[1] 许明陆[1] 李晔[1] 易红华[1] 刘春英 袁亮[1] 周茂林[1] 崔俊娟 陈荣丽[1] Tian Honglin;Xu Minglu;Li Ye;Yi Honghua;Liu Chunying;Yuan Liang;Zhou Maolin;Cui Junjuan;Chen Rongli(Maize Institute,Chongqing Academy of Agricultural Sciences,Chongqing,401329;Agriculture Commission of Shizhu County,Chongqing,409100)

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

出　　处：《分子植物育种》2020年第2期680-684,共5页Molecular Plant Breeding

基　　金：国家粮食丰产增效科技创新重点专项(2017YFD0301704);重庆市科研院所绩效激励引导专项(cstc2018jxjl80047);国家重点研发计划项目(2018YFD0100104);创新团队(NKY-2018QC02);国家行业科技项目(20150312707)共同资助

摘　　要：重庆地区玉米生产,受前期"倒春寒,阴雨寡照",后期"极端气候,高温避熟"及常年的稀大行种植习惯影响致单产远低于全国平均水平。本研究选用广适、稳产玉米品种‘渝单30’,采用大田裂区试验设计,回顾、查阅近几年重庆地区光温资源资料,以适应气候变化及新形势下现代玉米种植模式要求,稳定并提升玉米产量,研究播期与种植密度对玉米田间主要农艺性状和产量的影响。结果表明,在现播期情况下提早10 d播种的产量>当地生产上采用播期>播期延后10d;52500株/hm^2产量>60000株/hm^2>45 000株/hm^2>37 500株/hm^2;‘渝单30’密度在52 500株/hm^2下播期提早10 d,产量最高。本研究为重庆地区的玉米生产提供了数据支持及科学依据。I n Chongqing corn production, by the early "late spring coldness, cloudy and drizzly" filling stage extreme weather, avoid high temperature and dilute cooked" perennial for planting habits affect yield far lower than the national average level. To analyze the Chongqing area of light and temperature in recent years, this research carried out sowing period and density, to meet the requirements of modern maize planting patterns and climated change under the new situation, stabilized and increased yield of maize. Review, inspection material of light and temperature resources in Chongqing area in recent years, with wide adaptability, stable maize variety’Yudan30’, a field split plot design. The effects of sowing date and planting density on maize agronomic traits and yield. This results showed that 10 d earlier sowing yield>local production of the sowing date>sowing date delay10 d;52 500 plants/hm^2>60 000 plants/hm^2>45 000 plants/hm^2>37 500 plants/hm^2;’Yudan30’ in the density of52 500 plants/hm^2 under sowing 10 d earlier, the highest yield. This study provided data support and scientific basis for maize production in Chongqing.

关 键 词：玉米 光温资源 栽培 密度 农艺性状 产量 

分 类 号：S513[农业科学—作物学]