Suitability Grouping System of Paddy Soils for Multiple Cropping -Part II : Criteria of the Suitability Grouping (다모작(多毛作)을 위한 답토양(畓土壤) 적성등급(適性等級) 구분(區分) -제(第)2보(報) : 적성등급(適性等級) 구분기준(區分基準))
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- Korean Journal of Soil Science and Fertilizer
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- v.19 no.4
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- pp.283-289
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- 1986