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The Effect of Time and Rate of Application of Nitrogen, Date of Harvest and Various Production Practices on the Yield and Sucrose Content of Sugar Beets

Charles Stanley Baldwin

出版	Thesis (Ph.D.) - Michigan State University. Department of Soil Science, 1964
URL	http://books.google.com.hk/books?id=9TKtxrwg5kYC&hl=&source=gbs_api