内蒙古农业科技
內矇古農業科技
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INNER MONGOLIA AGRICULTURAL SCIENCE AND TECHNOLOGY
2013年
5期
50-51,74
,共3页
段玉%胡景辉%张君%姚俊卿%郭瑞丽
段玉%鬍景輝%張君%姚俊卿%郭瑞麗
단옥%호경휘%장군%요준경%곽서려
栗钙土%钙积层%人工扰动%物理性质%产量
慄鈣土%鈣積層%人工擾動%物理性質%產量
률개토%개적층%인공우동%물이성질%산량
Chestnut soil%Calcic horizon%Human disturbance%Physical properties%Crop yield
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/cm3，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。
通過田間試驗方法，研究探索人工擾動（深耕深鬆）榦旱慄鈣土鈣積層對土壤水分、物理性狀和作物產量的影響，試驗結果錶明，深鬆可破除堅硬的鈣積層，使土壤變鬆軟，土壤硬度減小，可降低土壤容重，深鬆後0~80cm土層的土壤容重減小0.03g/cm3，可使下層土壤疏鬆、降水滲入率增高，提高土壤水分的保蓄能力，從而增加作物產量和降水利用效率。
통과전간시험방법，연구탐색인공우동（심경심송）간한률개토개적층대토양수분、물이성상화작물산량적영향，시험결과표명，심송가파제견경적개적층，사토양변송연，토양경도감소，가강저토양용중，심송후0~80cm토층적토양용중감소0.03g/cm3，가사하층토양소송、강수삼입솔증고，제고토양수분적보축능력，종이증가작물산량화강수이용효솔。
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.
