摘要
采用膜下滴灌方式灌溉，能保证棉花的生长始终处于一个良好的水分环境中，有利于棉花充分利用当地的光热资源，叶面积指数（ＬＡＩ）高值持续期进入早，持续时间长，积累的光合产物多，从而能获得较高的经济产量，降低灌溉定额，提高水产比。试验表明，膜下滴灌植棉能够增产２０％～５０％，节约用水２０％～５０％，水产比提高５０％。
Using unds mulch drip irrigation could sustain cotton growing in better water environment and be good for using light energy source fully.The LAI high volue maintaining period come early, continue longly, accumulating more photosynthate. Then, using this method could obtain relatively high economic yield, reduce irrigation index and improve water yield ratio.This experiment indicated that unds mulch drip irrigation could improve yield 20%￣50%, save water 20%￣50%,improve water yield ratio 50%.
出处
《新疆农业大学学报》
CAS
1999年第1期63-68,共6页
Journal of Xinjiang Agricultural University
基金
"九五"国家科技攻关资助项目
关键词
棉花
膜下滴灌
生育特点
配套技术
增产机理
cotton
unds mulch drip irrigation
growth character
coordinated techniques
