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.
Results
Showing 1 to 9 of 9 for “"Crop coefficients"”.
-
Irrigation scheduling for Sovereign Coronation grapevine based upon evapotranspiration calculations and crop coefficients /
… 150%) were used in combination with one of two crop coefficients (Kc; either fixed at 0.75 or 0.2 to 0.8 based upon increasing canopy volume) to calculate the amount of irrigation water required. Five irrigation treatments were: un irrigated control; (lOOET) X Kc =0.75; 150ET X Kc =0.75; lOOET X …
-
Effect of irrigation technology and plant density on cotton growth, yield, yield components, and water use efficiency
… water use efficiency, and grass-reference crop coefficients of cotton under different irrigation technologies and rainfed conditions. Four irrigation technologies, which were Low Energy Precision Application (LEPA), Low Elevation Spray Application (LESA), Mobile Drip Irrigation 1 (MDI1 with …
-
Hydrologic Response Caused by Wetland Expansion at Huntley Meadows Park in Hybla Valley, Virginia
… of AET that may change due to expansion, monthly crop coefficients (Kc) were developed with reference ET coming from the Reagan National Airport NOAA weather station and AET coming from diurnal fluctuations of the water table analyzed with a MATLAB-adapted version of White’s Method. Monthly …
-
Creeping Bentgrass, Kentucky Bluegrass and Tall Fescue Responses to Plant Growth Stimulants Under Deficit Irrigation
… product (PP). The objectives were to determine crop coefficients (K<sub>c</sub>) for creeping bentgrass fairways and tall fescue home lawns, to determine if PGS application allowed for more water conservation, and to determine if they impacted physiological function and/or root morphology. A …
-
Evaluation of Deficit Irrigation Strategies for Corn
… tall reference Penman-Monteith equation and dual crop coefficients for com. The yield ratio, calculated with a normalized transpiration ratio, was used along with water use data to evaluate irrigation strategies.<br /> Strategies with high water use efficiencies performed well across all …
-
The Effect of Evapotranspiration on the Groundwater Dome and Past Drought Conditions at Cape Henry, Virginia
… was large enough to shift the groundwater dome. Crop coefficients (Kc) were estimated using the AET rates calculated by the White’s Method and the potential evapotranspiration (PET) rates calculated by the Penman-Monteith method. These coefficients and ET rates were input into the Advanced (i.e., …
-
Water use of mature pecan orchards under semi-arid conditions
… fruit production, and as a result most orchard crops depend on supplemental irrigation, especially in areas in South Africa, where rainfall patterns are unpredictable and sparsely distributed. Through accurate quantification or estimation of crop water use or evapotranspiration (ET), the need …
-
'Hass' avocado tree water use and the effects of water stress on fruit development
… d⁻¹ and the lowest in June at 1.2 to 1.4 mm d⁻¹. Crop coefficients (Kc) were provided for each site, and the three sites had similar Kc values throughout the year, as all three orchards were considered mature, with >75% orchard shaded area. However, fruit load influenced tree water use. At all …
-
Ecohydrology of Natural and Restored Wetlands in a Glacial Plain
… for greater wind speed. Finally, estimated crop coefficients will be useful for regional wetland restoration planning by providing major losses in local water budget.</p>