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Effect of Soybean Plant Populations in a Soybean and Maize Rotation

Stella A. Ennina and Max D. Cleggb

a Crops Res. Inst., P.O. Box 3785, Kumasi, Ghana
b Dep. of Agron., Univ. of Nebraska, Lincoln, NE 68583-0817



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Fig. 1. Total monthly precipitation and mean maximum monthly temperatures during the growing seasons of 1994, 1995, 1996 and the long term averages at Mead, NE

 


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Fig. 2. Mean response of total aboveground dry matter, residue, and seed yield of determinate soybean variety Hobbit 97 to plant populations at Mead, NE (1994 and 1995)

 


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Fig. 3. Mean ear leaf chlorophyll and maize grain yield as influenced by previous cropping systems involving soybean plots at different plant populations and fallow and maize plots with no N application, Mead, NE (1995). Maize was at 55000 plants ha-1. SE indicates 0.05 level of probability

 


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Fig. 4. Mean ear leaf chlorophyll and maize grain yield as influenced by previous cropping system involving soybean plots at different plant populations and fallow and maize plots with no N application, Mead, NE (1996). Maize was at 55000 plants ha-1. SE indicates 0.05 level of probability

 





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Copyright © 2001 by the American Society of Agronomy.