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Martin, K.L
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Authors
Hodgen, P.J
Raun, W.R
Johnson, G.V
Teal, R.K
Freeman, K.W
Martin, K.L
Shanahan, J.F
Schepers, J.S
Topics
Type
Oral
Year
2003
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1. Relationship Between Response Indices Measured In-Season and at Harvest in Winter Wheat

Current methods for making nitrogen recommendations in winter wheat (Triticum aestivurn L.) do not adjust for in-season temporal variability of plant available non-fertilizer nitrogen (N) sources. The purpose of this study was to compare the use of different nitrogen response indices determined in-season @INDVI and RIPLANTHEIGkm) to the nitrogen response index measured at harvest (RIHARvEST). In addition, this study evaluated the use of the in-season response indices for determining topdress nitrogen...