Project Summaries

11-812TX  Project Manager: E. M. Barnes

TILLAGE EFFECTS ON COTTON PRODUCTION IN DRYLAND AND IRRIGATED PRODUCTION SYSTEMS OF THE ROLLING PLAINS

Paul DeLaune, Texas AgriLife Research

Water is the most limiting factor for crop production within the Texas Rolling Plains. Hence, systems which capture precipitation and maximize water use efficiencies will theoretically also maximize nutrient use efficiencies and subsequent lint yields. The objective of this research was to evaluate the effect of tillage on cotton production in dryland and irrigated production systems of the Texas Rolling Plains. The research was conducted at the Texas AgriLife Research Chillicothe Research Station in Chillicothe, Texas. Four tillage treatments were evaluated: 1) conventional till; 2) no-till; 3) no-till with a terminated cover crop; and 4) strip-tillage. Each of these tillage treatments were implemented across three water regimes: 1) 0% ET replacement; 2) 45% ET replacement; and 3) 90% ET replacement. This study was conducted under two irrigation systems: 1) subsurface drip irrigation; and 2) pivot irrigation. Continuing drought conditions resulted in poor yields within dryland treatments. However, excellent yields were obtained for irrigated plots, particularly at 90% ET replacement levels. Tillage did not significantly affect lint yields in 2012, as indicated in past research at this location. Former research has indicated that tillage does have a significant impact on net returns, specifically greater net returns for no-till over bedded conventional systems. Further economic analysis will be conducted for this study. The main effect of ET replacement significantly affected lint yields. Within the Rolling Plains, irrigating at 90% ET replacement resulted in the highest lint yields and similar or greater irrigation water use efficiency values at 45% ET replacement. Conservation tillage systems within the Rolling Plains should be considered as a reasonable alternative to conventional tillage systems.

 

Project Year: 2012
 

Search 2012 Projects:


STATE PROGRAM
▸ Alabama
▸ Arizona
▸ Arkansas
▸ California
▸ Florida
▸ Georgia
▸ Louisiana
▸ Mississippi
▸ Missouri
▸ New Mexico
▸ North Carolina
▸ Oklahoma
▸ South Carolina
▸ Tennessee
▸ Texas
▸ Virginia

CORE PROGRAM
▸ Cotton Incorporated Fellow
▸ Cottonseed
▸ Crop Improvement
▸ Farm-to-Mill
▸ Production Efficiency
▸ Sustainable Cotton
▸ Variety Improvement

Project Manager
 

▸ All Project Nos.
 

Share This: