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1. Post-Wheat Summer Cover Crop Effects Crop Yields and Soil Properties in a No-till Dryland Cropping SystemTraditional dryland cropping systems in the semi-arid Great Plains include long fallow periods of up to 14 months to conserve soil moisture. However, such systems are inefficient even under continuous no-till (NT) management. As less water is necessary to produce forage compared to grain, cover crops (CCs) may be successfully integrated into dryland crop rotations for increased soil cover and potentially greater income when hayed or grazed as annual forages. One study was initiated in 2016 near... L.M. Simon, A.K. Obour, J.D. Holman, M.E. Schipanski, S.K. Johnson, K.L. Roozeboom |
2. Nitrogen Fertilizer Application and Depth of Moist Soil at Planting Affected Grain Sorghum YieldThe depth of moist soil before planting is critical for grain crop production in intensified dryland cropping systems. We investigated depth of moist soil at planting and nitrogen (N) fertilizer application rate effects on continuous grain sorghum yields on a Crete silt loam soil over 32-years in western Kansas. Treatments were four N rates (0, 20, 40 and 60 lb ac-1) in a randomized complete blocks design with four replication and depth of moist soil at planting determined with Paul... A.K. Obour, J.D. Holman, Y.M. Assefa, L.M. Simon, P. Mauler |
3. Impact of Nitrogen Fertilizer Source and Application Date on the Yield and the Quality of Winter WheatNitrogen (N) is one of the most important and critical nutrient elements in agricultural systems, and its effect directly affects crop productivity and nutrient content. Our field studies were related to the wheat Crop. They were conducted in four locations to evaluate the effect of various Nitrogen sources (SuperU, Urea, UAN and UAN+Anvol) applied at three different times (pre, greenup and jointing). The experimental design of the four locations was randomized complete with... H. Moulay, B. Arnall |
4. Comparative Analysis of Different On-the-Go Soil Sensor SystemsThis study is part of the field of precision agriculture. This management mode is one of the great revolutions in the agriculture field, and it means better management of farm inputs such as fertilizers, herbicides, and seeds by applying the right amount at the right place and at the right time. Precision agriculture aims to divide the farm into management plots where each receives customized management input based on soil fertility status, landscape position, and management. also provides... H. Moulay, B. Arnall, S. Phillips |