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1. Nitrogen Availability Following Cover Crops in TX Cropping SystemsCover crops have been heavily promoted to improve soil health and function in US agricultural productions systems. Within semi-arid environments, interest in cover crops continues to grow although several concerns hinder adoption. As soil water use by cover crops is often a chief concern, nutrient availability to subsequent crops is also a concern. The objective of this study was to measure soil chemical and biological properties following various cover crops in a continuous cotton system under... P. Delaune, K. Lewis, P. Mubvumba |
2. Effects of Climate Change and Narrow Rows with Higher Plant Densities on Yields of Irrigated CornClimate change is significantly impacting agricultural systems worldwide, and although there are reports of these impacts contributing to higher yields in some regions, the general consensus is that there will be negative impacts on yields and soil quality across large regions. Management practices that can contribute to higher yields and adaptation to a changing climate will be important during the 21st century. This presentation will cover results from two manuscripts that are currently... J.A. Delgado, B. Floyd, R. D'adamo, A. Villacis, A.D. Brandt, A. Halvorson, C.E. Stewart, J. Alwang, S. Del grosso, D.K. Manter |
3. Soil Microbes Are Critical to Maintaining Soil Fertility in the Great PlainsSoil in the Great Plains is known to be susceptible to wind and water erosion due to moisture deficits throughout the region that limit soil organic matter (SOM) accumulation that helps form stable soil structure. Conservation management practices like reduced tillage are emphasized to maintain SOM that provides habitat for soil microbes to perform ecosystem services related to nutrient cycling and soil aggregation to increase resistance to erosion and maintain fertile topsoil. Soils under long-term... W. Roper, V. Acosta-martinez, J. Moore, M. Mikha, D.K. Manter, C.E. Stewart, R.M. Lehman, M.A. Liebig, V.L. Jin |