旱地玉米全覆膜方式的增产效应
Journal of Shanxi Agricultural Sciences(2011)
Abstract
针对山西旱作农业区年降水量少、季节分布不均,特别是玉米生产中春旱严重等问题,在山西忻州进行了旱地玉米不同覆盖方式试验。结果表明,顶凌全地膜覆盖的产量最高,为11 926 kg/hm2,比对照增产4 426 kg/hm2,二者差异达到极显著水平。顶凌全地膜覆盖双垄沟播技术可有效利用冬春降雨,解决春旱难题,是解决山西省旱地玉米高产稳产的有效方法。
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Key words
whole film mulching in ice crust,yield-increasing effect,ditch sowing,dry land maize
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