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The Stody of the Soil in Tiantan Garden Ⅲ The Analysis of Soil With Enclosing Fence in the Growth Area of Old Trees

Liu Kefeng; Gong Xiekun(BeiJing Agricultural College)Yuan Yneyun; Zhang Yuxin(TianTan Garden  
It has been taken some years for protecting soil near gxowtlh area of old treeswith enclosing fence in Tiantan Garden. In this paper, we have analysed the effeet ofenclosing feace on phpsical and nutrient situation of soil. It is confirmed that enclosingfence is not ouly a measure for proteeitng soil but also has better effeet and ecological bene-fit for improving physical and chemical comdition of soil and banking up with fertilizer.
【CateGory Index】: S766
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