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中文摘要：
通过盐渍化土壤棉花膜下滴灌大田试验，研究了灌水周期对盐渍化土壤水盐运移和棉花产量的影响。结果表明，灌溉定额为4200m2／hm2时。膜内0～60cm土层含水率以灌溉周期7d最高，5d次之，3d最小；且灌溉周期7d时，可有效降低湿润体土壤含盐量，有效抑制土壤返盐。灌水周期对棉花产量有显著影响，灌溉周期为7d时，棉花产量最高。
英文摘要：
A cotton field experiment under mulched drip irrigation of soil salinization was carried out in or- der to study the effects of different irrigation frequencies on soil water-salt transport of salinization soil and cotton yield. The results showed that the moisture content with irrigation frequency for 7 days was the highest , and the lowest was appeared with irrigation frequency for 3 days in soil layers of 0-60 cm; soil salinity was reduced effectively with irrigation frequency for 7 days, which could effectively control the up- rise of soil salt. The irrigation frequency had a significant influence on cotton yield, and the highest yield was obtained under irrigation frequent for 7 days.
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