Results 301 to 310 of about 3,743,090 (358)

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
openaire   +1 more source

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
openaire   +1 more source

GLUE analysis of meteorological-based crop coefficient predictions to derive the explicit equation

Neural computing & applications (Print), 2023
A. Elbeltagi, A. Seifi, M. Ehteram, Bilel Zerouali, Dinesh Kr. Vishwakarma, K. Pandey   +5 more
semanticscholar   +1 more source

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
openaire   +1 more source

UAV-based multispectral image analytics for generating crop coefficient maps for rice

Arabian Journal of Geosciences, 2022
S. Khose, D. Mailapalli, S. Biswal, C. Chatterjee   +3 more
semanticscholar   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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 ...
openaire   +1 more source

Crop evapotranspiration prediction by considering dynamic change of crop coefficient and the precipitation effect in back-propagation neural network model

, 2021
H. Xin, Zheng Wei, Baozhong Zhang, Yinong Li, Taisheng Du, He Chen   +5 more
semanticscholar   +1 more source