黄土高原沟谷地春玉米不同耕作覆膜方式水温效应的研究  

Moisture and temperature effects of different tillage and filmmulching techniques for spring maize in the gully region of the Loess Plateau

作　　者：党建友[1] 张定一[1] 裴雪霞[1] 杨扎根 

机构地区：[1]山西省农业科学院小麦研究所,临汾041000 [2]山西省晋城市农业局,晋城048000

出　　处：《中国生态农业学报》2006年第3期75-77,共3页Chinese Journal of Eco-Agriculture

基　　金：山西省科技攻关项目(96-004-05-06);山西省财政支农项目(2002)资助

摘　　要：试验研究黄土高原沟谷地春玉米不同耕作覆膜的水温效应结果表明，秋耕起垄顶凌覆膜（秋垄顶盖）比对照（秋耕播盖）播前0～200cm土层土壤多贮水56．35mm，生育前期（出苗～抽雄吐丝期）多贮水64．63～104．42mm，0～10cm土温提高1．1～1．5℃，旱年玉米产量达5652．0kg／hm^2，增产37．12％，水分利用效率达19．57kg／m^3，提高1．93kg／m^3。The moisture and temperature effects of different tillage and film-mulching techniques for spring maize in the gully region of the Loess Plateau are studied. The results show that the best effects of moisture and temperature can be attained if the soll is tilled and ridged in autumn and is mulched with the plastic film in spring just before the thawing time. Compared with those of the control （i. e. the soil is tilled and ridged in autumn and is mulched with plastic film in seeding time）, the moisture capacity in the soll of 0 - 200cm in depth is increased by 56.35mm in pre-sowlng time and by 64.63-104.42mm in growth prophase （from seedling time to heading time） and the average temperature in the soil of 0-10cm in depth is increased by 1.1 - 1.5℃. In a year of drought, the yield of maize reaches to 5652.0kg/hm^2 ,which increases by 37.12 % , and the water use efficiency reaches 19.57kg/hm^2, which increases by 1.93kg/m^3.

关 键 词：沟谷地 春玉米 耕作覆膜 水温效应 

分 类 号：S642.1[农业科学—蔬菜学] S157[农业科学—园艺学]