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Changes in Distribution of Mineral Nitrogen Under Native Range and Cultivated Fields at the Nebraska Sandhills Ag. Laboratory
Gary W. Hergert
其他書名
Project Completion Report
出版Nebraska Water Resources Center, Institute of Agriculture & Natural Resources, University of Nebraska, Lincoln, 1984
URLhttp://books.google.com.hk/books?id=eFBAPQAACAAJ&hl=&source=gbs_api