摘要
主要用滴灌技术 ,对含盐量达 2 0 .0g/kg的重盐碱土进行改良和利用 ,并产生一定的经济效益 ,累积脱盐率 :0～ 30cm83.5 % ,30～ 6 0cm75 .5 % ,6 0～ 10 0cm46 .1% ,其中 0～ 6 0cm为 79.9%。灌溉量 2 0 0m3 / 6 6 6 .7m2 ,产皮棉 1998年为 2 0 .4kg/ 6 6 6 .7m2 ,1999年为 6 6 .1kg/ 6 6 6 .7m2 ,2 0 0 0年为 91.1kg/ 6 6 7m2 。通过 4年连续试验 ,初步得出 ,采用滴灌技术在重盐碱地上种植棉花是成功的 ,是今后改良和利用重盐碱地的一条新途径。
An experiment of cultivation cotton on the heavy saline soil was conducted from 1998 to 2000. Advanced drop irrigation technology was used to improve the heavy saline soil. Results show that desalinization rate is 83.5% in 0～30cm soil, 75.5% in 30～60cm soil, 46.1% in 60～100cm, and 79.9% in 0～60cm respectively. Under the irrigation condition of 200m 3/667m 2, the lint production is 20.4kg/667m 2 in 1998, 66.1kg/667m 2 in 1999, and 91.1kg/667m 2 in 2000 respectively. It is concluded that drop irrigation technology is an ideal methord for cultivation cotton on heavy saline soil and a good way for improving saline soil.
出处
《干旱区研究》
CSCD
2001年第1期43-45,共3页
Arid Zone Research
关键词
滴灌
盐分含量
脱盐
棉花
重盐碱地
drop irrigation, salt content, desalinization, cotton
