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蔬菜地膜覆盖栽培的几个“不宜”

KeXue ZhongYang(2019)

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Abstract
采用地膜覆盖栽培蔬菜,特别是在早春季节,不仅可以提高地温,还能抑制地面水分蒸发,防止土壤表面板结,保持土壤湿度,降低棚室内空气湿度,减少病害的发生和传播,有利于蔬菜的生长发育.但在实际生产中,常发现有些菜农采用全园覆盖地膜的方式,或地膜封口紧贴植株茎秆等做法,致使地膜覆盖的作用未发挥出来,甚至带来其他问题.以下总结出蔬菜地膜覆盖栽培的几个“不宜”.
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