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Janssen, K.A
Gordon, W.B
Johnson, S.W
Yang, H
Jin, V
Gray, T
Widmar, A
Hoeft, R.G
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Authors
Murdock, L.W
Herbeck, J.H
Gray, T
Johnson, S.W
Buchoolz, D.D
Janssen, K.A
Whitney, D.A
Lamond, R.E
Thomas, W.L
Whitney, D.A
Maddux, L.D
Gordon, W.B
Martin, V.L
Murdock, L.W
Bowley, C
Jones, S
Grove, J.H
Gray, T
Gordon, W.B
Fjell, D.L
Whitney, D.A
Janssen, K.A
Pierzynski, G.M
Barnes, P.L
Nafziger, E.D
Hoeft, R.G
Adee, E
Gordon, W.B
Whitney, D.A
Janssen, K.A
Lamond, R.E
Gordon, W.B
Niehues, B.J
Olsen, C.J
Gehl, R.J
Schmidt, J.P
Stone, L.R
Maddux, L.D
Gordon, W.B
Gordon, W.B
Whitney, D.A
Walters, D.T
Dobermann, A
Cassman, K.G
Drijber, R
Lindquist, J
Specht, J
Yang, H
Ferdinand, L.J
Lamond, R.E
Gordon, W.B
Janssen, K.A
Godsey, C.B
Janssen, K.A
Gordon, W.B
Lamond, R.A
Gordon, W.B
Widmar, A
Ruiz Diaz, D.A
Widmar, A
Diaz, D.R
Schmer, M
Jin, V
Sindelar, A
Ferguson, R
Wienhold, B
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1. Nitrogen Recommendations for Wheat using the Chlorophyll Meter

The use of a hand held chlorophyll meter showed good promise in helping to make N recommendations for wheat on a field basis. Using 5 site-years on well drained soils over a 2- year period, a correlation index (R2) of 0.88 was found relating the March (Feekes 5) N needed for optimum yield with a differential chlorophyll reading. Research on this method will be continued and expanded to field trials. Soils in less than a well drained class may require a separate calibration or the method may not be...

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