栗钙土钙积层扰动对土壤物理性质和作物产量的影响  

Effect of Disturbing Calcic Horizon of Chestnut Soil on Soil Physical Properties and Crop Yield

作　　者：段玉[1] 胡景辉[2] 张君[1] 姚俊卿[1] 郭瑞丽 

机构地区：[1]内蒙古农牧业科学院资源环境与检测技术研究所,内蒙古呼和浩特010031 [2]河北省农林科学院,河北石家庄050051 [3]呼和浩特市赛罕区农牧业局,内蒙古呼和浩特010020

出　　处：《内蒙古农业科技》2013年第5期50-51,74,共3页Inner Mongolia Agricultural Science and Technology

基　　金：内蒙古自治区自然科学基金资助项目(2010MS0311)

摘　　要：通过田间试验方法，研究探索人工扰动（深耕深松）干旱栗钙土钙积层对土壤水分、物理性状和作物产量的影响，试验结果表明，深松可破除坚硬的钙积层，使土壤变松软，土壤硬度减小，可降低土壤容重，深松后0～80cm土层的土壤容重减小0．03g/cm^3，可使下层土壤疏松、降水渗入率增高，提高土壤水分的保蓄能力，从而增加作物产量和降水利用效率。A field experiment was carried out to explore the effect of disturbing （deep tillage and deep loosening） the calcic horizon on soil water and physical properties and crop yield on chestnut soil.The results showed that the soil became soft and soil hardness decreased for the hard calcic horizon was broke by deep loosening.The soil bulk density was reduced by 0.03g/cm^3 in 0-80cm soil layer after deep loosening,then the rainfall infiltration rate and soil water storage capacity was increased,so the crop yield and rainfall use efficiency was increased.

关 键 词：栗钙土 钙积层 人工扰动 物理性质 产量 

分 类 号：S157.4[农业科学—土壤学]