四川盆地丘陵区小麦-玉米模式夏玉米适宜播期研究  

Research on the Suitable Sowing Date of Summer Maize in Wheat-maize Cropping System in Hilly Area of Sichuan Basin

作　　者：任胜茂 方芳 李仕伟 李钟 

机构地区：[1]南充市农业科学院,四川南充637000

出　　处：《耕作与栽培》2017年第2期9-11,共3页Tillage and Cultivation

基　　金：家粮食丰产增效科技创新重点专项"玉米密植高产宜机收品种筛选及其配套栽培技术"(2016YFD0300300);国家现代农业产业技术体系四川创新团队"玉米耕作制度改革研究"

摘　　要：以仲玉3号、蠡玉16、成单30为试验材料,研究不同播期对小麦-玉米模式夏玉米产量和生育进程的影响。结果表明:夏玉米吐丝期和成熟期随播种期推迟而延迟,生育期总天数随播种期推迟而减少;在四川盆地丘陵区的生态条件下,小麦-玉米模式夏玉米适宜的播种期为5月上旬和中旬,5月上旬和中旬播种的产量差异不显著,随着播种期的延后,5月下旬播种的产量下降,6月上旬和中旬播种产量下降明显。Three maize varieties （Zhongyu 3, Liyu 16 and Chengdan 30） were used to investigate the effect of sowing dates on the yield and developmental progress of summer maize in wheat - maize cropping system. The results showed that the silking stage and ma- turity stage of maize were delayed and the whole growth period was decreased when sowing date was postponed. In hilly area of Sichuan basin, the most suitable sowing date of summer maize in wheat - maize cropping system was in the early may and in the middle may during which time the yield had not significant difference. The maize yield declined with the sowing date postponed.

关 键 词：播期 玉米 产量 生育期 

分 类 号：S513.01[农业科学—作物学]