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Soil and Water Conservation Research in the Pacific Coast Region

出版	Agricultural Research Service, U.S. Department of Agriculture, 1962
URL	http://books.google.com.hk/books?id=vjAuAAAAYAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

An effective soil and water conservation program must be based on sound technical information. Research has provided this pool of knowledge. Practices now being applied reflect the results gleaned from many years experience. This publication describes a few examples of recent soil and water conservation research.