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塔里木河—孔雀河中下游地区棉花膜下滴灌施肥量研究
Authors
李和平
李国振
田长彦
Publication date
1 January 2006
Publisher
Abstract
塔里木河—孔雀河中下游是我国最干旱缺水的地区之一,该区水资源95%以上为农业灌溉用水,主要灌溉方式为大水漫灌,水分损失量严重。为合理利用和节约有限的水资源,我们在2002~2003年进行棉花膜下滴灌用水量和氮、磷施肥量耦合试验。通过两年试验得出:在该区棉花膜下滴灌条件下,适宜的灌溉量为393mm(3931.5m3/hm2),施肥总量为301.6kghm2/标肥,最佳产量为3353.53kg/hm2/皮棉。比当地农民大水漫灌(生育期)节水8068-50683/hm2,节肥281.3kghm2/标肥,节肥率达48%。增产皮棉1103.53kg/hm2,证明膜下滴灌是一个节水、节肥、高产的灌溉方式,应该在塔里木河—孔雀河中下游地区推广
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Last time updated on 29/11/2016