Zobrazeno 1 - 9
of 9
pro vyhledávání: '"William F. Heer"'
Publikováno v:
Agronomy Journal. 102:530-536
In the central Great Plains, there is growing interest in management options that could improve and stabilize corn (Zea mays L.) production in marginal environments. Limited research exists regarding the practice of delayed planting and its impact in
Autor:
Ken Kofoid, William F. Heer, Alan J. Schlegel, Aqeel Ahmad, James H. Long, Larry Maddux, Mark M. Claassen, Gerald E. Wilde, Barney W. Gordon, Merle D. Witt, Patrick M. Evans, Victor Martin, Kraig L. Roozeboom
Publikováno v:
Journal of Agricultural and Urban Entomology. 24:177-193
Second-generation neonicotinoid insecticides are being used to protect seeds and seedlings against injury by early season insects on a wide variety of crops. Seed-applied insecticides have recently been commercialized in the USA for early season inse
Grain Sorghum Response to Simulated Drift from Glufosinate, Glyphosate, Imazethapyr, and Sethoxydim1
Autor:
David L. Regehr, Kassim Al-Khatib, Phillip W. Stahlman, Stewart R. Duncan, Mark M. Claassen, Patrick W. Geier, William F. Heer
Publikováno v:
Weed Technology. 17:261-265
Field experiments were conducted at four locations in Kansas in 1999 and 2000 to evaluate grain sorghum response to simulated drift rates of four herbicides. Imazethapyr, glufosinate, glyphosate, and sethoxydim were applied at 1/3, 1/10, 1/33, and 1/
Publikováno v:
Kansas Agricultural Experiment Station Research Reports.
Publikováno v:
Journal of Production Agriculture. 6:57-62
Differences in farm income and variability of income resulting from alternative planting dates for winter wheat (Triticum aestivum L.) production in the Southern Plains under different tillage regimes has not been reported. This study was conducted t
Publikováno v:
Kansas Agricultural Experiment Station Research Reports. :60-62
Six summer annuals and three forage sorghums were evaluated for forage yield and quality under south central Kansas dryland conditions. When cut in the late boot to early heading stage, all forage types (millet, sudan, sorghum-sudan, and forage sorgh
Autor:
William F. Heer
Publikováno v:
Kansas Agricultural Experiment Station Research Reports.
Autor:
Eugene G. Krenzer, William F. Heer
Publikováno v:
Soil and Tillage Research. 14:185-196
This study was designed to determine to what extent tillage and fall growth as affected by planting data influence profile soil water for spring growth and yield of monoculture winter wheat (Triticum aestivum L.). The study was conducted for 3 crop y
Autor:
William F. Heer
Publikováno v:
The American Journal of Surgery. 144:162