覆草、覆膜对旱地苹果幼树生长发育的影响  

Effects of Ground Cover and Plastic Mulching on Growth and Development of Young Apple Trees in Dry Soil

作　　者：王孝威[1] 郑王义[2] 杨晓霞[3] 高峰 曹慧[1] 

机构地区：[1]山西农业大学,山西太谷030801 [2]山西省农业科学院小麦研究所,山西临汾041000 [3]东北师范大学化学学院,吉林长春130024 [4]阳曲县农业局,山西阳曲030100

出　　处：《山西农业科学》2002年第2期46-48,共3页Journal of Shanxi Agricultural Sciences

摘　　要：果园土壤水分直接影响果树的生长发育。试验表明 ,覆草、覆膜效果明显好于清耕。果园覆草、覆膜后大大减少了土壤水分的蒸发 ,其土壤含水量分别比对照提高 2 3.4 4 % ,18.39% ;苹果树的根系活力、叶片相对含水量、新梢长度、叶面积大小、叶绿素含量等均高于对照 ,硝酸还原酶活性、光合强度比对照有明显提高 。The study of effects of ground cover and plastic mulching on growth and development of young apple trees in dry soil showed that the soil moisture content improved 23.44% and 18.39%.The root activity,leaf relative moisture content,the shoot length,leaf area,the content of chlorophyll,the nitrate reductase activity,photosynthetic rate all increased significantly.The membrane permeability decreased.

关 键 词：生长发育 覆草 覆膜 旱地 苹果 幼树 土壤含水量 

分 类 号：S661.1[农业科学—果树学]