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中文摘要：
通过设置灌溉量和滴灌管埋深的二因素三水平田间小区试验,研究灌溉量和滴灌管埋深对无膜地下滴灌棉花产量的影响,以明确在无膜条件下地下滴灌棉田灌溉量和滴灌管埋深的最优指标。结果表明,无膜灌溉量为4 200m3/hm2,滴灌管埋深5cm时,产量最高,为最佳无膜覆盖滴灌量和滴灌管埋深设置,当灌溉量较低时,滴灌管要深埋,反之,则要浅埋。仅从经济效益来看棉花种植采用地膜覆盖更好,但无膜覆盖具有较好的社会效益和生态效益。
英文摘要：
Through setting field experiment of irrigation amount and buried depth of subsurface drip irrigation tape,to study the effect of these two factors on production of cotton and to ascertain optimum combination of them.The results show that yield is highest with 4 200 m3/hm2 irrigation amount,5 cm buried depth of tape,which is optimum combination for production.Furthermore,for these two factors,tape need to be buried more deeply in low irrigation amount and more shallowly in high irrigation amount.Economic benefits of farmland with mulch plastic film are higher than that without mulch plastic film.However,farmland without mulch plastic film has better social and ecological benefits.
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