江南花生地膜覆盖和灌溉的增减产效应研究

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为探明不同气候年型下江南花生地膜覆盖栽培的适宜性,研究了地膜覆盖和花生生长中后期灌溉对产量的影响。结果表明,地膜覆盖在花生生长前期增温保墒,生育期明显提前,个体生长发育良好,生长后期降温保墒,提高经济性状。地膜覆盖增温保墒的增产率为58.4%,降温保墒的增产率为62.2%。在6月20日后采用灌溉处理,夏季高温干旱明显的2007年,旱地露地和覆膜、稻田露地产量比对照分别高出64.6%,37.2%,50.5%,稻田覆膜因土壤水分过多比对照减产40.2%。因此,出现高温干旱天气,及时灌溉能促进旱地栽培、稻田露地
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