W.C. Hofmann, L.M. Carter, P.E. Keeley, and L.F. Elliott J.H. Chesson, R.J. Thullen, D. Ballard, and N. Goodell
OBJECTIVES: To develop the criteria for ‘best practice’ cotton production systems. To test experimental component subsystems and the interrelationship of cotton production subsystems including rotational crops. To demonstrate for technology transfer ‘best practice’ systems.
PROCEDURE: Four systems were identified for inclusion in a field study resulting from a factorial of two systems categories: row spacing and tillage. The ‘best practice’ row spacing was selected as 30 inch as compared…
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L. M. Carter and J. H. Chesson
OBJECTIVES: To adapt, modify or design planters and planter controls for direct seeding into cover crops.
PROCEDURE: Determine desirable and achievable planting conditions associated with direct seeding into cover crops, including type of cover crop, method of vegetation suppression and preparation prior to planting.
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OBJECTIVES: To determine the degradation of wheel paths (roads)
over time with normal tillage. To determine number of years of normal tillage and cropping to return soil to original or comparable state.
PROCEDURE: The paths to be studies were created in 1984 and used
for conduct of system studies with the wide tractive research vehicle (WTRV) until 1989.
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OBJECTIVES: To determine why control of nightshade with prometryn declined with
time in a field study conducted in 1985, 1987, 1988, and 1989.
PROCEDURES: Both seed and soil samples were collected from field plots
previously untreated and treated with prometryn.
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OBJECTIVES: To identify effective systems for the control of annual morningglory
in cotton.
PROCEDURES: Several treatments were applied to field plots at the USDA Cotton
Research Station in 1989 and 1990 for the control of annual morningglory in cotton.
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OBJECTIVES: To identify and research cover crops suitable for use in cotton
production systems (major emphasis is to determine the beneficial aspects of cover crops in managing weeds in cotton).
PROCEDURES: Five cover crops (annual ryegrass, barley, hairy vetch, subterranean
clover, and tall fescue) were seeded into four row plots that were 65 feet long
on ll/7 /89.
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OBJECTIVES: To compare drip and furrow irrigation by measuring
the emergence, plant growth characteristics, yield, rate of plant die-off, and water use of Acala cotton on very sandy soil with a great deal of pressure from nematodes and Fusarium wilt.
PROCEDURES: This experiment was started in the Spring of 1989 on a 0.4-ha plot of uniform loamy sand soil.
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