Results 11 to 20 of about 4,660,024 (287)

Determination of crop-coefficients and estimation of evapotranspiration of rapeseed using lysimeter and different reference evapotranspiration models

open access: yesJournal of Agrometeorology, 2020
Accurate estimation of evapotranspiration of rapeseed is essentially required for irrigation scheduling and water management. The present study was undertaken during 2015-16 and 2017-18 in ICR Farm, Assam Agricultural University, Jorhat to determine ...
ABHIJIT SARMA, KRISHNA BHARADWAJ
doaj   +2 more sources

Evapotranspiration estimates for water balance scheduling in the UK [PDF]

open access: yes, 1996
This paper compares the use of different methods for estimating reference evapotranspiration (ETo) for irrigation scheduling in the UK. Methods include use of long-term averages, daily weather data and evaporimeters. The results from a single trial in
Hess, Tim M.
core   +7 more sources

The impact of climatic variability over the period 1961- 1990 on the soil water balance of upland soils in the North East Arid Zone of Nigeria [PDF]

open access: yes, 1991
Over the period 1961 – 90 the North East Arid Zone of Nigeria experienced a decline in annual rainfall totals and increased aridity which placed increasing pressure on rain fed, millet-based farming systems.
Hess, Tim M.
core   +7 more sources

Evaporation in fen wetlands [PDF]

open access: yes, 2011
Wicken Fen represents a remnant of the once extensive peat fenlands of East Anglia, which survived large-scale drainage efforts intended to bring land into agricultural production due to its importance within the local economy and subsequently as a site ...
Kelvin, J.
core   +7 more sources

Spatiotemporal Variation of Crop Coefficient of Winter Wheat in Huaibei Plain

open access: yesGuan'gai paishui xuebao, 2021
【Background】 Water uptake by plants and its subsequent transpiration is an important process in the hydrological cycle but difficult to measure and calculate.
HUA Jiacheng   +3 more
doaj   +1 more source

Effects on Net Irrigation Water Requirement of Joint Distribution of Precipitation and Reference Evapotranspiration

open access: yesAgriculture, 2022
To establish the uncertain influence that the joint distribution of precipitation and reference evapotranspiration has on net irrigation water requirement, a Copula function–Monte Carlo method (CFMC) was proposed to calculate the probability of ...
Feilong Jie   +5 more
doaj   +1 more source

Reference crop evapotranspiration derived from geo-stationary satellite imagery: a case study for the Fogera flood plain, NW-Ethiopia and the Jordan Valley, Jordan [PDF]

open access: yes, 2010
First results are shown of a project aiming to estimate daily values of reference crop evapotranspiration ET0 from geo-stationary satellite imagery. In particular, for Woreta, a site in the Ethiopian highland at an elevation of about 1800 m, we tested a ...
Bruin, H.A.R., de   +5 more
core   +1 more source

Development of the crop coefficient for capsicum (Capsicum annum L.) under protected structures

open access: yesJournal of Agrometeorology, 2016
The study was undertaken to determine the crop water requirement and crop coefficient for capsicum (Capsicum annum L.) at plasticulture farm of CTAE, Udaipur, Rajasthan under four small protected structures; (i) shednet house (ii) insectnet house (iii ...
CHITRA SHUKLA   +2 more
doaj   +1 more source

Predicating the Crop Coefficient of Eggplant from Crop Evapotranspiration and Atmometer (ETgage) [PDF]

open access: yesEngineering and Technology Journal, 2014
The objectives of the study are to predicate crop coefficient (Kc) for eggplant using watermarks gypsum blocks and atmometer (or ETgage) devices during the growing season and to compare the predicating values of the crop coefficient with FAO recommended ...
Ehab Fahkree Hikamat   +1 more
doaj   +1 more source

A model of correction indexes determination for Virginia type tobacco on the basis of field measured ETP [PDF]

open access: yesJournal of Agricultural Sciences (Belgrade), 2009
Numerous methods of calculating ET0 and ETP offer a great practical possibility for their application, but in order to improve their efficiency it is necessary to check them in particular regions.
Aksić Miroljub   +4 more
doaj   +1 more source

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