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Correlation between the Factors of Soil Physical Property in Upland Soil  

Kim, Chan-Yong (Agricultural Research & Extension Services)
Seo, Young-Jin (Agricultural Research & Extension Services)
Kwon, Tae-Young (Agricultural Research & Extension Services)
Park, Jun-Hong (Agricultural Research & Extension Services)
Heo, Min-Soon (Agricultural Research & Extension Services)
Ha, Sang-Keun (1National Institute of Agricultural Science & Technology, RDA)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.43, no.6, 2010 , pp. 793-797 More about this Journal
Abstract
The investigations were conducted to improve the physical properties by analyzing physico-chemical properties on the different soil families of textures at 20 upland fields located in the parts of Gyengsangbuk-do area. Soil physico-chemical properties were analyzed for bulk density, hardness, porosity, moisture, pH, EC and organic mater by soil depth on the different soil families of textures. Bulk density distributions were higher than 1.2 Mg $m^{-3}$ in the optimum range. Hardness distributions were lower than 20 mm in the optimum range. Therefore, the physical properties of upland soil was deteriorated. Correlation coefficient of bulk density with hardness and organic mater were higher significantly, that was positive and negative, respectively. The soil hardness had the greatest distribution degree to the crop yield and bulk density and organic matter followed. Conclusively, To improve the physical properties of upland soil was more effective to fertilizing organic matter than other ways.
Keywords
Upland soil; Soil family texture; Hardness; Bulk density; Organic material;
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