干旱地区农业研究Issue(4)：30-35,40,7.DOI:10.7606/j.issn.1000-7601.2015.04.05
覆膜时期对全膜双垄沟播玉米籽粒灌浆特性的影响
Effects of film mulching time on grain filling characteristics of maize with film mulched double-furrow sowing
摘要
Abstract
The study aims to investigate the effects of film mulching time ,autumn ,in early spring ,and before sow-ing ,on soil temperature , grain filling characteristics and yield with film mulched double-furrow sowing . The results showed that the soil temperature in 15 cm increased significantly under the treatment of mulching in early spring , in-creased by 4 .10℃ and 7 .76℃ .The soil temperature increased markedly by 4 .07℃ ~5 .35℃ and 3 .15℃ ~5 .07℃ in the 20 cm and 25 cm layers .The 100-grain weight of film mulched in autumn was significantly improved by 15 .28%compared with the treatment of film mulched in early spring .Correlation analysis indicated that soil temperature at 20 cm and 25 cm layers were positively correlated with maximum filling rate ,and with grain yield at filing stage of maize under the treatment of film mulched in autumn .The results indicated that the treatment of film mulched in autumn may shorten filling time ,improve the rate of grain filling and thus increase the grain yield ,being the best pattern for maize production in arid and semi-arid areas .关键词
玉米/全膜双垄沟播/覆膜时期/灌浆特性/产量Key words
maize/film mulched double-furrow sowing/different film mulched time/filling characteristics/yield分类
农业科技引用本文复制引用
高玉红,吴兵,姜寒玉,温小刚,牛俊义,冯启宇..覆膜时期对全膜双垄沟播玉米籽粒灌浆特性的影响[J].干旱地区农业研究,2015,(4):30-35,40,7.基金项目
甘肃省干旱生境作物学重点实验室开放基金（GSCS －2012－16）；国家自然科学基金项目 （）
