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Late-season Applied N Can Increase Alfalfa Yields Drs. W. Raun, G. Johnson, S. Phillips, W. Thomason, Mr. J. Dennis and Mr. D. Cossey Increased yields due to applied N found in last or second to last harvest. Issue 52, Vol. 14, No. 2 - Early Spring 2006 - Pages 20-23 (PDF, 3 pages, 70 KB)
Keep Close Watch on NPKs Fertilization of Alfalfa Dr. Richard T. Koenig Some form of soil and tissue testing must be used to identify deficiencies and monitor nutrient status. Issue 44, Vol. 12, No. 1 - Early Spring 2004 - Pages 8-10 (PDF, 3 pages, 65 KB)
Balanced P and K Applications Crucial to Optimum Alfalfa Yields W.K. Berg, Drs. B.C. Joern, K.D. Johnson, S.M. Brouder, and J.J. Volenec Tests conducted at Purdue show the grave consequences of adding P without K. Issue 43, Vol. 11, No.  4 - Fall 2003 - Pages 20-23 (PDF, 2 pages, 216 KB)
Sulfur Applications Boost Alfalfa Yields Dr. Richard Koenig, Kevin Heaton, and James Barnhill In sites marginal or deficient in sulfur, tests indicate that consistent responses to sulfur fertilization can be achieved. Issue 42, Vol. 11, No.  3 - Late Spring 2003 - Pages 16-18 (PDF, 2 pages, 21 KB)
Alfalfa Responds to High P Rates, P Banding R.W. Mullen, and Drs. G.V. Johnson, J. F. Stritzke, J.L. Caddel, S.B. Phillips, W.R. Raun Oklahoma State University trials show that additional profit may be realized because implement and labor costs are decreased due to fewer applications. Issue 32, Vol. 9, No. 1 - Winter 2001 - Pages 9-11 (PDF, 2 pages, 27.2 KB)
Management Key In Efficient, Profitable Alfalfa Production PPI Nutrient needs and profitability must be balanced with environmental stewardship. Issue 15, Vol. 4, No. 4 - Fall 1996 - Pages 26-30 (PDF, 3 pages, 185 KB)
Compaction Reduces Alfalfa Yield Drs. Richard P. Wolkowski and Larry G. Bundy Two-year study shows effects of wheel compaction on yield and nutrient uptake. Issue 2, Vol. 1, No. 2 - Late Spring 1993 - Page 18-21 (PDF, 3 pages, 21.3 KB)

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