| 苹果幼树地膜覆盖效应的观察 |
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| 引用本文： | 刘育昌,赵长增,陈德蓉.苹果幼树地膜覆盖效应的观察[J].甘肃农业大学学报,1989(1). |
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| 作者姓名： | 刘育昌 赵长增 陈德蓉 |
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| 作者单位： | 甘肃农业大学园艺系，甘肃农业大学园艺系，甘肃农业大学园艺系 |
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| 摘 要： | 通过元帅苹果幼树地膜覆盖试验结果表明,覆膜后,土壤温度显著提高,5厘米土层内平均高于对照6.9℃,10厘米土层高于对照7.3℃,并以五月底以前增温效果最显著;土壤保温以0—20厘米效果最好,土壤含水量差异极显著,而20—40厘米,40—60厘米水分差异不显著;植株生长状况以新梢生长量,长枝数量,萌芽数及离地面20厘米处于周均显著高于对照;叶面积、鲜叶重比,干叶重比差异亦均显著;根系生长和分布的深度及广度均大于对照,其中以0—20厘米和60—80厘米覆膜植株的根量显著大于对照植株,而20—60厘米土层内,两者根量差异不大。
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| 关 键 词： | 苹果幼树 地膜覆盖 |
The Effect of Covering Plastic Film on Apple Young Trees |
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| Abstract: | The present study was designed to determine the effect of covering plastic film on apple young trees.The result obtained showed that the soil temperature increased significantly after covering,The mean temperature in layer 5cm and 10cm in depth was 6.9 ℃ and 7.3 ℃ higher than the controls,respectively.,The highest increasing of temperature was read before last of May.The best maintenance of soil moisture was in the layers O—2Ocm in depth.The growth conditions of the young trees were all better than those of the controls. |
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