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Diagnostic Soil Testing for Nitrogen Availability
David W. JamesEugene H. CroninJohn E. KeithLorin E. Harris
其他書名
The Effects of Nitrogen Fertilizer Rate, Time, Method of Application, and Cropping Pattern on Residual Soil Nitrogen
出版Utah Agricultural Experiment Station, 1979
URLhttp://books.google.com.hk/books?id=eKlQAQAAMAAJ&hl=&source=gbs_api