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	1.	A graphic method of interpreting response to fertilizer / by D.B. Ibach. by Ibach, D. B. (Donald Bryan), 1900- Series: Agriculture handbook (United States. Department of Agriculture) ; no. 93. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Research Service, 1956 Availability: No items available. Add to cart (remove)
	2.	Fertilizer use in the United States by crops and areas, 1964 estimates / [by D.B. Ibach and J.R. Adams]. by Ibach, D. B. (Donald Bryan), 1900- Adams, J. Richard (James Richard), 1898- Series: Statistical bulletin (United States. Department of Agriculture) ; no. 408. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service and Statistical Reporting Service, 1967 Availability: No items available. Add to cart (remove)
	3.	Crop yield response to fertilizer in the United States [by D. B. Ibach and J. R. Adams. by Ibach, D. B. (Donald Bryan), 1900- Adams, J. Richard (James Richard), 1898- [joint author.] United States. Agricultural Research Service. Farm Economics Research Division. Fertilizer used on crops and pasture in the United States: 1954 estimates Series: Statistical bulletin (United States. Department of Agriculture) ; no. 431. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington] U.S. Dept. of Agriculture, Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968] Availability: No items available. Add to cart (remove)

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