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Authors Howell, T.A. Remove constraint Howell, T.A.: Howell, T.A. Subjects harvest date Remove constraint harvest date: harvest date

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1. Agricultural water conservation--a global perspective

Description:: In the special issue: Water use in crop production / edited by M.B. Kirkham.
Author:: Unger, P.W. , Howell, T.A.
Subject:: agriculture , water conservation , crop production , irrigation , temporal variation , spatial variation , market competition , dryland farming , evaporation , weed control , irrigation systems , water management , irrigation water , tillage , mulches , no-tillage , soil water retention , fallow , water use efficiency , crop yield , harvest date , semiarid zones , literature reviews
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 1999

2. Heat Unit Availability for Cotton Production in the Ogallala Aquifer Region of the United States

Description:: Includes references
Author:: Esparza, A.M. , Gowda, P.H. , Baumhardt, R.L. , Marek, T. , Howell, T.A.
Subject:: Gossypium hirsutum , cotton , heat sums , air temperature , soil temperature , planting date , harvest date , growing season , crop production , linear models , crop models , climatic zones , alternative crops , Southwestern United States , Northwestern United States , Midwestern United States , Great Plains region
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007