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Planting Date, Cultivar, and Tillage System Effects on Dryland Soybean Production

Michael P. Popp*,a, Terry C. Keislingb, Ronald W. McNewc, Lawrence R. Oliverb, Carl R. Dillond and Daniel M. Wallaceb

a Dep. of Agric. Econ. and Agribusiness, Fayetteville, AR 72701
b Dep. of Crop, Soil, and Environ. Sci., Fayetteville, AR 72701
c Agric. Stat. Lab., Univ. of Arkansas, Fayetteville, AR 72701
d Dep. of Agric. Econ., Univ. of Kentucky, Lexington, KY 40546



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Fig. 1. Soil water is the 0 to 60 cm soil depth as a function of planting date and rainfall distribution at Keiser, Pine Tree, and Little Rock, AR. An average LSD for comparing any two data points for a given location within a year is estimated by averaging the standard errors of all data points reported for a year and location. The average t-value used was 2.00 in every situation.

 





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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education
Soil Science Society of America Journal
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Environmental Quality
The Plant Genome
Copyright © 2002 by the American Society of Agronomy.