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 18 of 18 for “"irrigation efficiency"”.
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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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Spray stake irrigation of container-grown plants
… were conducted to evaluate the effect of pre-irrigation media moisture deficit, irrigation application rate, and intermittent irrigation on irrigation efficiency [(amount applied - amount leached) amount applied' 100] of spray stake-irrigated, container-grown plants. In the first experiment, …
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ΕΠΙΛΟΓΗ ΤΟΥ ΒΕΛΤΙΣΤΟΥ ΣΥΝΔΥΑΣΜΟΥ ΠΑΡΟΧΗΣ ΚΑΙ ΜΗΚΟΥΣ ΔΙΑΔΡΟΜΗΣ ΚΑΤΑ ΤΗΝ ΑΡΔΕΥΣΗ ΜΕ ΑΥΛΑΚΙΑ ΜΕ ΤΗ ΔΙΑΔΙΚΑΣΙΑ ΑΝΑΛΥΣΗΣ ΦΥΣΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ
… TECHNIQUE IS APPLIED FOR THE SOLUTION OF FURROW IRRIGATIONPROBLEMS. EACH FURROW IS CONSIDERED TO BE A PHYSICAL SYSTEM, WHICH KERNELS AREDERIVED USING DISCHARGE AND RUNOFF DATA, COLLECTED DURING EXPERIMENTAL IRRIGATIONS. THESE KERNELS WHICH DESCRIBE THE FUNCTION OF THE FURROW ARE USED TO TEST …
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Differential moisture sensitivity in the life cycle of selected vegetable crop
Irrigation is potentially one of the most important tools of the agricultural producer in increasing crop production in many parts of the world. In an area like Saskatchewan, the production of crops important to the horticulturist can be expected to attain significant economic importance only with …
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Best Management Practice Use and Efficacy for the Virginia Nursery and Greenhouse Industry
… and greenhouse industry to increase production efficiency, and also serve to help meet clean water limitations on contaminants entering waters such as the Chesapeake Bay Watershed. Research is lacking on which BMPs are most widely used or most efficacious for Virginia nursery and greenhouse …
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Modernized Approach For Generating Micro-Layering And Macro-Heterogeneous Structures In Porous Media For Use In Transmitted-Light Method Flow Visualization Experiments
… recharge waters, pollutant transport and even irrigation efficiency for agriculture. Griffith, et al. (2011) developed an approach where constructed reproducible “geologically realistic” sand configurations are deposited in sand-filled experimental chambers or cells for light-transmitted flow …
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Evaluation of Modern Irrigation Techniques with Brackish Water
Modern irrigation techniques are becoming increasingly important in water-scarce countries especially in arid and semiarid regions. Higher crop production and better water use efficiency are usually achieved by drip irrigation as compared to other irrigation methods. Furthermore, by using drip …
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Evaluación de alternativas de gestión del regadío tradicional para la reducción del impacto agroambiental
… work analyzed the repercussions that alternative irrigation management can cause on agrosystems and its near environment. For thus, water use and agri-environmental impact on Irrigation District nº V of Bardenas (Zaragoza, Spain; 15,500 ha) was studied by analyzing its drainage network (2000 and …
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Designing user-centered IoT solutions for small-scale and mid-scale farmers
… global water crisis, it is crucial to increase irrigation efficiency in agriculture, which currently consumes 70% of the global freshwater supply. Studies have shown that using precision agricultural technology to control irrigation can reduce water consumption by as much as 20% and increase …
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A Business Plan for the Implementation of a Green Gardener Certification Program in San Luis Obispo County
… initially intended to address urban landscape irrigation efficiency. These agencies realized that landscape maintenance professionals had a huge impact on water efficiency and on non-point source pollution (Jordan & Aston 2001). The California Department of Pesticide Regulation defines a …
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An analysis of water consumption rates in agricultural irrigation systems
… of the high water consumption rates found in irrigation systems which use projectile-type sprinkler heads, the history and evolution of irrigation systems is discussed. The effect of evaporation is studied as as explanation for the water losses, but it is found to be insignificant. Having …
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Ethanol production from sugarcane in India: Viability, constraints and implications
… I examine the potential for improved irrigation efficiency to lessen the trade-off of irrigation water for food crops versus fuel crops. If the Government of India hopes to successfully reach their ethanol blend goal for 2017 with minimum negative side effects on the rest of its …
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Sprinkler system performance and irrigation scheduling effects on turfgrass quality
… uniformity coefficient and the water application efficiency at three different pressures on six different types of sprinkler heads. Tests were run under wind speeds less than five miles per hour. For this study data were obtained from literature. A computer program was developed to calculate the …
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Global and regional assessments of unsustainable groundwater use in irrigated agriculture
… natural and human-impacted water systems.</p> <p>Irrigation can significantly increase crop production. Chapter 1 combines a hydrology model (WBM) with a crop model to quantify current crop production that is directly attributed to groundwater irrigation in China. Unsustainably-sourced groundwater …
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Advancing Soil Moisture Mapping with Multi-Modal Drone Sensing and AI: Integrating GPR, Hyperspectral, and Thermal Imaging for Precision Agriculture
… for sustainable agriculture, helping improve irrigation efficiency, crop productivity, and water conservation. However, conventional monitoring methods often struggle to provide reliable, scalable, and non-invasive soil moisture information, especially in vegetated areas or at deeper soil …
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Behavioral responses and policy evaluation: Revisiting water and fuel policies
… groundwater depletion through increasing irrigation efficiency in Mexico. I quantify the impacts of different sources of inefficiency on groundwater extraction, and I evaluate the effectiveness of alternative policies that aim to reduce the over-extraction of groundwater. I find that …
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Evaluating effectiveness of irrigation technification using a calibrated optimization model in the primary irrigation district of Guanajuato, Mexico
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01