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![](https://webarchive.library.unt.edu/eot2008/20090512100632im_/http://www.ars.usda.gov/incme/images/Research_head.gif) |
Research Project:
Soil Management for Sustainable Agricultural Systems That Prevent Wind Erosion and Enhance the Environment
Location: Wind Erosion and Water Conservation Research
Title: Managing soil properties through dryland cropping system intensities
Authors
Submitted to: World Cotton Research Conference Proceedings
Publication Type:
Proceedings/Symposium
Publication Acceptance Date: September 10, 2007
Publication Date: September 14, 2007
Citation: Acosta Martinez, V., Zobeck, T.M., Booker, J., Upchurch, D.R. 2007. Managing soil properties through dryland cropping system intensities [abstract]. World Cotton Research Conference, September 10-14, 2007, Lubbock, Texas.
Technical Abstract: The transition from irrigated to dryland production is imminent for the Southern High Plains region due to the minimum recharge occurring to the Ogallala aquifer. Thus, a long-term dryland study was established on USDA-ARS farmland near Lubbock, Texas in 2003 to evaluate the ability of different cropping systems to modify the properties of semiarid soils including the potential of these soils as a water storage-reservoir for crop production. After 3 yrs, rotations with a winter cover crop such as cotton (Gossypium hirsutum)-rye (Secale cereale)-sorghum (Sorghum bicolor) and haygrazer (alfalfa-sorghum hybrid, Sorghum bicolor L.)-rye demonstrated higher soil microbial populations (1.7 times higher) and enzyme activities of C and P cycling (up to 2 times higher) compared to continuous cotton or cotton-sorghum. Soil organic mater was higher under hay-rye rotation compared to the other cropping systems. Water infiltration rates were higher among cropping systems under no-tillage compared to conventional tillage. Although there have been rapid improvements in soil properties, total weight and lint of cotton have been similar in continuous monoculture compared to the rotations.
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Last Modified: 05/09/2009
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