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1. Strategic Tillage Effects on Crop Yield and Soil Properties and Dryland Crop RotationsThis study evaluated strategic tillage (ST) to control HR weeds and improve crop yields in an otherwise long-term no-till (NT) soil. Treatments were five crop rotations: 1) continuous winter wheat (Triticum aestivum L.) (WW); 2) wheat-fallow (WF); 3) wheat-sorghum (Sorghum bicolor L.)-fallow (WSF); 4) continuous sorghum (SS); and 5) sorghum-fallow (SF) as main plots. The sub-plot were reduced tillage (RT), continuous NT, and ST of NT. Results showed tillage (ST or RT)... A. Obour, J. Holman, L. Simon, A. Schlegel |
2. In-furrow Placement of Dry Urea Prodcuts with Winter WheatPrevious research has shown that the application of some nitrogen fertilizer prior to or at the time of wheat seeding can positively affect the initiation of fall tillers and thus yield potential. However, there are logistical challenges in placing that nitrogen in no-till production systems. Traditionally, the placement of urea-based fertilizers in-furrow with wheat seed has not been recommended. The objectives of this project were to evaluate stand reduction and associated... L. Haag, A. Schlegel, D. Ruiz Diaz |
3. Long-term Forage Rotation Yields, Soil Water Use, and ProfitabilityForages are important for the region’s livestock industry and are becoming increasingly important as irrigation capacity and grain prices decrease. Forages require less water than grain crops and may allow for increasing cropping system intensification and opportunistic cropping. A study was initiated in 2012 at the Southwest Research-Extension Center near Garden City, KS, comparing several 1-, 3-, and 4-year forage rotations with no-tillage and minimum-tillage. Data presented are from 2013... J. Holman, A. Obour, A. Schlegel, L. Simon |
4. Nitrogen Management in Semi-arid Conservation Cotton Production SystemsThe Southern High Plains (SHP) region of Texas is one of the largest cotton-producing regions in the United States. Cotton production is hindered by climatic conditions and wind erosion, but attempts have been made to adopt conservation management practices like cover crops and crop rotations to limit these effects. Conservation management practices can reduce a soil’s susceptibility to wind erosion, but their adoption has been limited on the SHP due to producers’ concerns regarding... J. Burke, K. Lewis, W. Keeling, W. Keeling |
5. Evaluating the Profitability of Nitrogen Management Strategies to Increase Yield in Regenerative Cotton Production SystemsSoil health management practices, such as cover crops and no-till systems, are common in semi-arid cropping systems to reduce wind erosion. However, implementing these practices can also lower cotton yield. As a result, cotton production using no-till and cover crop systems in semi-arid environments tends to be less profitable than conventional systems, despite lower costs from fewer tillage operations during the growing season. For these soil health practices to be economically sustainable in... A. Wright, J. Burke, K. Lewis, W. Keeling, W. Keeling |