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Crop coefficients for winter wheat in a sub-humid climate regime
Agricultural Water Management, 2008 Estimations of evapotranspiration (ET) from natural surfaces are used in a large number of applications such as agricultural water management and water resources planning.
Finn Plauborg, C T Petersen, S Hansen
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Crop coefficients for peanut evapotranspiration
Agricultural Water Management, 1988Abstract Meteorological and soil moisture data were collected from field sites in Caddo County, Oklahoma, during the 1984 and 1985 irrigation seasons. Analysis of alfalfa (Medicago sativa L.) water use data enabled calibration of the modified Penman equation for reference crop evapotranspiration ( et ).
Ronald L Elliott +3 more
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Determination of Crop Coefficient of Tea
Journal of Agricultural Engineering (India), 2009Crop coefficient of tea was determined based on evapo-transpiration data (1996-2001) using weighing type lysimeter. Weekly reference crop evapotranspiration (ETo) was worked out for the same period by FAO Penman–Monteith (FAO 56-PM) equation using daily meteorological data.
null Alok K. Sikka +3 more
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Crop Coefficients: A Literature Review
Journal of Irrigation and Drainage Engineering, 2016AbstractRecently presented climate change scenarios include increasing demand for water, due to both increase in temperature and variations in precipitation pattern.
GUERRA, ELISA +2 more
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Use of Crop Canopy Size to Estimate Crop Coefficient for Vegetable Crops
World Environmental and Water Resource Congress 2006, 2006Planting time, plant density, variety, and cultural practices vary widely for horticultural crops. It is difficult to estimate a basal crop coefficient that can incorporate these variations. Canopy cover, as an indicator of intercepted sunlight, is related to crop water use.
Thomas Trout, Jim Gartung
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KcMod: a crop coefficient model
2010This Program was written in July 2009 (by R.L. Snyder and A. Swelam), and revised in July 2010 and 2018 (by R.L. Snyder and E. Guerra). It aims to provide a practical tool for crop coefficient calculation according to local climate conditions, for both academic and non academic purposes.
Snyder, L. Richard +2 more
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Can crop coefficients improve the economics of irrigated crops?
Acta Horticulturae, 2017Climate and market conditions together with water policies have a large impact on agricultural water use. Evapotranspiration (ET) accounts for most of the water loss from a well-managed, irrigated crop, and the crop coefficient (Kc) method is widely used to estimate ET.
GUERRA, ELISA +3 more
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Crop Coefficients of Some Selected Crops of Andhra Pradesh
Journal of The Institution of Engineers (India): Series A, 2015Precise information on crop coefficients for estimating crop evapotranspiration (ETc) for regional scale irrigation planning is a major impediment in many regions. Crop coefficients suggested based on lysimeter data by earlier investigators have to be locally calibrated to account for the differences in the crop canopy under given climatic conditions ...
K. Chandrasekhar Reddy +2 more
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Crop Coefficients for Drip-irrigated Processing Tomatoes
2004, Ottawa, Canada August 1 - 4, 2004, 2004Efficient management of drip irrigation systems requires reasonable estimates of crop evapotranspiration (ET), normally calculated as the product of a crop coefficient and a reference crop ET. However, a review of literature revealed mid-season crop coefficients of processing tomatoes to range from 1.10 to 1.25.
Blaine R. Hanson, Donald M. May
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Weighing Lysimeters for the Determination of Crop Water Requirements and Crop Coefficients
Applied Engineering in Agriculture, 2006Weighing lysimeters are accurate instruments to measure crop evapotranspiration. Three weighing lysimeters, consisting of undisturbed 1.5- ×2.0-m surface area by 2.5-m depth cores of soil, were constructed and installed at the Texas Agricultural Experiment Station in Uvalde, Texas. Two lysimeters, each weighing approximately 14 Mg, were located beneath
null T. Marek +5 more
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