Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 May 1963
Published in Agron J 55:295-298 (1963)
© 1963 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Irrigation Water Management and Nitrogen Fertilization of Grain Sorghums1

J. T. Musick, D. W. Grimes and G. M. Herron2

Synopsis: Grain yields were curvilinearly related to the number of irrigations, depletion of soil moisture, and increments of applied N. Evapotranspiration was related to number of irrigations and to available soil moisture. Plant growth response to applied N increased evapotranspiration slightly. Irrigation and applied N both increased the efficiency of water use. Maximum efficiency occurred at a yield level below maximum production.

1 Contribution from the Soil and Water Conservation Research Division, ARS, USDA, and the Garden City Branch, Kansas Agricultural Experiment Station. Contribution No. 59, Garden City Branch Experiment Station. Paper presented at the ASA Meetings, St. Louis, Mo., November 30, 1960.

2 Agricultural Engineer, USDA, Southern Plains Branch, Bushland, Texas (formerly, Garden City, Kans.); Associate in Agronomy, Iowa State University, Ames, Iowa (formerly, Garden City, Kans.); and Assistant Agronomist, Garden City Branch Experiment Station, Garden City, Kans., respectively.

Received for publication October 8, 1962.




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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
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1963 by the American Society of Agronomy.