摘要
通过大田试验覆膜种植夏玉米研究水分利用效率,采用人工打孔取土以及烘干法测定土壤含水量,结果表明:覆膜种植能有效提高作物水分利用效率,夏玉米覆膜种植总需水量较露地减少34.14?,水分利用效率比露地提高33.31%.作物系数Kc值在灌浆期达到最大,其值为1.184.
A field experiment was conducted in view of crop （summer maize） water use efficiency（WUE） with mulch in this thesis,set out water moisture with the way of manpower-stiletto and soil drier, got and crop （WUE） corresponding crop coefficient （K,） of corresponding plant environment , and got mulch could be good for improving crop WUE：Compared with planting bare-land, the general water requirement of summer maize planting mulch was 34.14mm lower, crop WUE higher than bareland 33.31% ,and the Kc got the top in milky ripening which was1. 184.
出处
《内江师范学院学报》
2008年第4期101-103,共3页
Journal of Neijiang Normal University
关键词
夏玉米
覆膜种植
水分利用效率
作物系数
需水规律
Summer maize, mulch Blant, water use efficiency
crop coefficient
water consumption pattern
