旱地玉米双相覆盖技术在太原地区的增产效果与机理  

Increasing Yield Effect and Machanism of the Two Phase Mulch for Dry land Maize in Taiyuan Area

作　　者：贾炜珑[1,2] 翁惠玉[1,2] 高兰华 郭秀荣[1,2] 刘守渠[1,2] 王淑芬[1,2] 

机构地区：[1]山西省农业科学院作物遗传研究所 [2]山西省农业科学院旱农中心

出　　处：《华北农学报》1996年第3期82-86,共5页Acta Agriculturae Boreali-Sinica

摘　　要：玉米双相覆盖技术在太原生态区增产率为１４．４８％。具有苗期适宜增温促发、中期保墒促长的土壤环境效应。增产机理是：玉米地上部和地下部协调增长，叶面积大，茎秆还原糖贮量多，干物质积累也多；具持续高强度灌浆特性。Rate of increasing yield of two phase mulch for dry land maize was 14.48% in Taiyuan area.The technique of two phase mulch for dry land maize have effects of the soil environment,both appropriate increasing temperature,promoting growth in seedling stage and preserving soil moisture,promoting growth in the middle stage.The machanism of increasing yield was coordinating growth between aerial and subterraneous pare of maize.The two phase mulch maize have larger leaf area,more reserves of reducting sugar in stem and more accumulation of dried substance.It showed continuous and high strength filling character,which made the speed of substance transfer picked up.

关 键 词：玉米 双相覆盖 增产机理 旱地 太原地区 

分 类 号：S513.04[农业科学—作物学]