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University of Nebraska - Lincoln
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
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Full-Text Articles in Physical Sciences and Mathematics
Maize Growth, Yield, Water Productivity And Evapotranspiration Response To Different Irrigation Methods And Amounts And Different Timing And Methods Of Nitrogen Applications, Ali T. Mohammed
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Declining the quantity and quality of freshwater resources in many parts of the world, including Midwestern USA, especially in the light of rapidly growing world’s population and changing climate, imposes significant and, in some cases imminent, challenges for producers, policy- and decision-makers to produce more yield with less water and other inputs, particularly in water scarcity regions.
There is not comprehensive previous research has quantified and evaluated coupled impacts of irrigation rates and nitrogen timing management strategies and their interactions on maize (Zea mays L.) productivity and its various attributed efficiency index metrics under different irrigation methods under the same …
Infiltration And Runoff Parameters For Tilled And No-Till Row Crops, Andrew J. Volkmer
Infiltration And Runoff Parameters For Tilled And No-Till Row Crops, Andrew J. Volkmer
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Infiltration and runoff are hydrologic processes that effect the amount of water available to plants, for groundwater recharge, and for stream flow. No-till planting (NT) is a management practice used to reduce soil erosion, increase water infiltration, and reduce soil water evaporation, and can have great impact on infiltration and runoff. An investigation was conducted to determine the impact of NT on infiltration and runoff when compared to tilled conditions.
Runoff and precipitation data was gathered from sites at Fillmore County, NE, Phelps County, NE, the USDA-ARS North Appalachian Experimental Watersheds (NAEW) near Coshocton, OH, and the Lennoxville Research Station …