Results 311 to 320 of about 211,977 (352)

YIELD-BASED, IRRIGATED ONION CROP COEFFICIENTS

Applied Engineering in Agriculture, 1999
Irrigation scheduling is one of the most important tools for developing best management practices (BMPs) for irrigated projects. Proper irrigation scheduling results in the high irrigation water use efficiencies necessary to conserve limited water resources. Information about crop coefficient (Kc), daily reference evapotranspiration (Eto), and daily
null M. S. Al-Jamal, null T. W. Sammis, null S. Ball, null D. Smeal   +3 more
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Irrigation crop coefficients for lowland rice

Irrigation and Drainage Systems, 1994
Meteorological and lysimetric data for a period of nine years were used to develop crop coefficients for rice grown under lowland conditions in a sub-humid tropical climate in India. The estimated crop coefficients were found to be higher than those values recommended by FAO.
S. Mohan, N. Arumugam
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Irrigation Crop Coefficients for Illinois Corn

Transactions of the ASAE, 1989
ABSTRACT Optimum scheduling of irrigations reduces costs, conserves water and reduces the likelihood of water quality problems. Crop coefficients are required for the estimation of daily crop evapotranspiration (ET) that is needed to schedule irrigations. Most crop coefficients have been developed in the Western U.S.
null B. A. Engel, null W. D. Lembke, null S. K. Sipp, null W. D. Goetsch   +3 more
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Determination of Crop Coefficient of Tea

Journal of Agricultural Engineering (India), 2009
Crop 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, null D.C. Sahoo, null M. Madhu, null V. Selvi   +3 more
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Crop kites: Determining crop-water production functions using crop coefficients and sensitivity indices

Advances in Water Resources, 2016
Abstract The crop-water production function quantitatively evaluates the relationship between seasonal water use and crop yield and is used to evaluate optimal irrigation depth and assess the potential of deficit and supplemental irrigation. A simple and easily applicable methodology to develop crop- and region-specific crop-water production ...
Mikhail Smilovic, Tom Gleeson, Jan Adamowski   +2 more
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Water use efficiency and crop coefficients of dry season oilseed crops

Agricultural Water Management, 2007
Abstract Eastern India receives higher average annual rainfall (1000–2000 mm) but 80% of it occurs within the June–September (rainy season), whereas the winter season (November–March) is dry. Due to a shortage of soil moisture, most rainfed areas of the region remain fallow during the winter season and cultivation (mainly rice) is confined to the ...
Gouranga Kar, Ashwani Kumar, M. Martha
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Wheat Irrigation Management Using Multispectral Crop Coefficients: I. Crop Evapotranspiration Prediction

Transactions of the ASABE, 2007
A method widely used for irrigation management determines crop evapotranspiration (ETc) from reference evapotranspiration (ETo) calculations and estimated crop coefficients. However, standard time-based crop coefficients may fail to represent the actual crop water use, for example, when deviations in weather or agronomic constraints appreciably change ...
null D. J. Hunsaker, null G. J. Fitzgerald, null A. N. French, null T. R. Clarke, null M. J. Ottman, null P. J. Pinter Jr.   +5 more
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Climate effect on crop coefficients

2014
Crop coefficient (Kc) values are commonly used by agronomists and engineers to estimate well-watered crop evapotranspiration (ETc) as: Kc=EToKc, where ETo is a measure of evaporative demand that is estimated from weather data collected over a large grass field using the standardized reference evapotranspiration for short canopies (ETo) equation.
R. L. Snyder, E. Guerra, F. Ventura, D. Spano   +3 more
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CROP EVAPOTRANSPIRATION AND CROP COEFFICIENTS OF VIBURNUM ODORATISSIMUM (KER.-GAWL)

Applied Engineering in Agriculture, 2005
Determination of irrigation requirements of nursery plants is becoming more important as the nursery growers are being challenged to conserve water and minimize runoff while meeting plant water needs. Historically, not enough attention has been given to the measurement of crop evapotranspiration (ETc) and crop coefficients (Kc) of ornamental plants ...
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Development of crop coefficient models of castor and maize crops

European Journal of Agronomy, 2015
Abstract Castor and maize are the most commonly cultivated crops in the Rajendranagar region of Andhra Pradesh, India. The study aims to develop a crop coefficient ( K c ) models for these crops, using Lysimeter measured daily crop evapotranspiration (ET c ) data and daily reference evapotranspiration (ET 0 ) computed using FAO-56 Penman-Monteith ...
openaire   +1 more source