摘要
１９９１～１９９３年旱作小麦─玉米地膜带田，试验研究表明，这项技术有效地利用了降水自然资源，具有明显的节水保墒作用，水分利用率高，比单作增产２０％～８０％。而垅种（小麦）沟盖（玉米）种植型式更优于传统的沟种（小麦）坡盖（玉米）型式，在作物共生期相互调水效应更为明显，协调平衡了小麦、玉米主要生育阶段对水分的供需矛盾，水分效益显著，前者比后者可提高产量１０．２％～２３．９％。
Testing results from 1991～1993 plastic
sheet mulching land with rain-fed wheat一corn plants showed that rainfall water resources were
effectively used ,therewas an apparent role in saving water and conserving soil moisture,water
use efficiencywas so high that there was a yield increase of 20%～80%in comparison with
themonocultivation, while the planting pattern of wheat planted in ridge and corn in
furrowmulched is much superior to the traditional planting patten of wheat planted in furrowand
corn in the ridge mulched.In the symboitic stage,crops have the obvious effect up-on the
regulation of water with each other,the coordination and balance of water re-quirements by
wheat and corn in the development stage with significant water benefits。The former can raise
crop yields by 10.2%～23.9%in comparison with the latter。Therefore,this is an important
pracciical technique in developing rainfed agriculturewith high yields and fine qualities in the
arid area in North China.
出处
《干旱地区农业研究》
CSCD
北大核心
1994年第4期26-30,7,共6页
Agricultural Research in the Arid Areas
关键词
旱作带田
小麦
玉米
垅种沟盖
节水效应
rainfed strip land,wheat,corn, planting crops in the ridge
with fur-row mulching
