Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"irrigation scheduling"”.
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Use of leaf resistance for predicting irrigation scheduling
Digitized by Kansas Correctional Industries
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Sprinkler system performance and irrigation scheduling effects on turfgrass quality
… quality of turfgrass at different levels of irrigation were run on small turf plots. The grass used in the plot was Cynodon dactylon (L.) Pers. (Common Bermudagrass). Data for cool season grasses were obtained from literature. The data were analyzed and a relationship between turfgrass …
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Irrigation scheduling: a soft adaptor to weather uncertainties and irrigation efficiency improvement initiatives
… of New Zealand is causing increasing demand for irrigation, placing more pressure on already stressed water resources. The challenge for New Zealand dairy farming is to maintain an appropriate equilibrium between pasture production and environment protection, achievable through the proper …
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Irrigation scheduling for Sovereign Coronation grapevine based upon evapotranspiration calculations and crop coefficients /
Several irrigation treatments were evaluated on Sovereign Coronation table grapes at two sites over a 3-year period in the cool humid Niagara Peninsula of Ontario. Trials were conducted in the Hippie (Beamsville, ON) and the Lambert Vineyards (Niagara-on-the-Lake, ON) in 2003 to 2005 with the …
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Bridging the Gap Between Lidar, Thermal, and Multispectral Remote Sensing for Irrigation Scheduling Applications
Irrigation reduces the soil moisture deficit in crop production; however, the Canadian Prairies is a semi-arid landscape with limited water resource availability, requiring careful application of water management practices. This thesis studies methods to reduce irrigation water consumption in …
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Measuring rooting depth and distribution of grain sorghum for predicting soil moisture depletion and irrigation scheduling
Digitized by Kansas Correctional Industries
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Application of genetic algorithms for irrigation water scheduling
A typical irrigation scheduling problem is one of preparing a schedule to service a group of outlets. These outlets may either be serviced sequentially or simultaneously. This problem has an analogy with the classical earliness/tardiness machine scheduling problems in operations research (OR). In …
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Short term planning and operation of irrigation systems
… developments. This is especially true for irrigation systems. This emphasis is mainly due to limited funds available for construction works, lack of suitable hydrologic sites, and the spirited and justifiable lobbying of enviromnental groups against construction of new projects. Hence to …
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A canal irrigation water allocation model.
… with allocation of canal water to competing crop irrigation demands. Multi-period linear programming was utilized to optimally allocate water in both time and space to maximize benefits for an irrigated farm. Irrigation scheduling, crop response and canal water delivery models were used to support …
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Use Patterns and Influencing Factors of Irrigation Best Management Practices in the Lower Mississippi River Basin
<p>This study uses the 2016 Irrigation Survey from Arkansas, Louisiana, and Mississippi to document the use of irrigation best management practices (IBMPs), analyze use patterns, and use quantitative methods to determine factors that influence producers’ decisions regarding IBMPs. IBMPs included in …
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Modeling Human Interferences to Hydrologic Systems
… (1) water use estimation -- an extension of the irrigation scheduling approach; (2) farmers' behavior of water use, which, if coupled with economic analysis, may be used to explain water use decisions and derive implications for water saving; (3) methodology in dealing with comprehensive input …
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Best Management Practice Use and Efficacy for the Virginia Nursery and Greenhouse Industry
… the survey. The most widely used BMPs included irrigation scheduling, integrated pest management, optimized irrigation efficiency, plant need based watering, grouping plants by water needs, on-site water capture and collection, and use of controlled-release fertilizers (CRFs). Cost was a barrier …
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Advancing Water Security and Environmental Sustainability Through Evaluation of Water Use From the Field to State-Wide Scale
… exempt users from withdrawing water for irrigation under a certain threshold. Moreover, as water is not metered, users often do not report their irrigation water use, resulting in considerable uncertainty about the impacts of irrigation withdrawals, which could potentially impact other …
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Data-Driven and Process-Based Modeling Approaches for Advancing Irrigation Water and Nitrogen Management in Humid Cropping Systems
… too little and too much soil water. Since irrigation decisions depend on the current soil water status, this variability makes it harder to know the right timing and amount of irrigation. The same swings also influence how nitrogen moves through the soil. Climate change is expected to make …
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Sustainable Approaches to Enhance Water Productivity in Cucumis melo
… Sustainable strategies such as grafting, deficit irrigation, and an improved understanding of plant-water relations offer potential solutions to enhance crop water productivity (CWP). This study conducted at the University of Nevada, Reno, evaluates three sustainable approaches to increase CWP in …
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Agronomic and physiological impacts of irrigation frequency on green basil (Ocimum basilicum L.)
… factor restricting agricultural production and irrigation globally, with sustainable agricultural development calling for less irrigation water use and more production per unit of water applied. Improved understanding of plant physiological responses to water stress, and the effect of irrigation …
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Transpiration and the water relations of barley
… and may be an aid to both growth prediction and irrigation scheduling.
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Water Supply Planning for Landscape Irrigation in Virginia
… supply plan approach was used to investigate irrigation application on landscaped areas in Virginia with a focus on turfgrass. The economically-important turfgrass industry in Virginia should be proactive in conserving drinking water supplies to meet human consumption needs, especially in …
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Automated Water Management for Center Pivot Irrigation Systems
… package that fully automates center pivot irrigation systems on fields planted to com, soybeans and potatoes for years 1986-2005. A total of seven sites from the Central and Northern Plains were chosen for analysis (Akron, CO, Ames, lA, Brookings, SD, Oakes, ND, Ord, NE, Rock Port, MO, and …
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