Results 81 to 90 of about 77,916 (214)

The use and re-use of unsustainable groundwater for irrigation: A global budget [PDF]

, 2017
Depletion of groundwater aquifers across the globe has become a significant concern, as groundwater is an important and often unsustainable source of irrigation water.
Frolking, Stephen E., Grogan, Danielle S., Lammers, Richard B., Prusevich, Alexander A., Wisser, Dominik   +4 more
core   +2 more sources

Shoot water content and reference evapotranspiration for determination of crop evapotranspiration

African Crop Science Journal, 2017
Determination of water requirement for crops in resource limited areas is  challenging, yet worsened by the common assumption that all crop varieties within a species have similar water requirements. The objective of the study was to  indirectly determine crop evapotranspiration of soybean varieties, using reference evapotranspiration and shoot water ...
Omondi, J.O., Mungai, N.W., Ouma, J.P., Baijukya, Frederick P.   +3 more
openaire   +4 more sources

Reference evapotranspiration of screenhouse‐grown crops

Actas del III Workshop en Investigación Agroalimentaria. WiA 3.1
The reference evapotranspiration Eref was measured under three screenhouses and compared to outside Eref. The reduction with respect to outside Eref was quantified by means of two factors, rad and adv. rad was found to depend linearly on transmittance (), and adv on wind ratio (). A model was proposed for screenhouse Eref based on
Kitta, Evangelini, Baille, Alain Daniel, Katsoulas, Nikolaos, Rigakis, Nikolaos   +3 more
openaire   +2 more sources

Evapotranspiration and crop coefficients of Moringa oleifera under semi-arid conditions in Pernambuco

Revista Brasileira de Engenharia Agrícola e Ambiental
Efficient water use in agriculture is fundamental, especially in semi-arid regions where water scarcity is intense. The aim of this study was to estimate water requirements and crop coefficients in the different phenological stages of Moringa oleifera ...
Célia S. dos Santos, Abelardo A. de A. Montenegro, Márcio A. L. dos Santos, Elvira M. R. Pedrosa   +3 more
doaj   +1 more source

Effect of deficit irrigation on yield and water use efficiency of onion (Allium cepa L.) in arid zones [PDF]

Brazilian Journal of Biology
Onion is considered a major vegetable crops all over the world. In arid zones water deficit can affect the yield of crops such as onion. Through this research, four levels of irrigation were used (100% of the calculated crop evapotranspiration ET100, 80%
A. M. Alzoheiry
doaj   +1 more source

Multi-decadal trends in global terrestrial evapotranspiration and its components [PDF]

, 2016
Evapotranspiration (ET) is the process by which liquid water becomes water vapor and energetically this accounts for much of incoming solar radiation. If this ET did not occur temperatures would be higher, so understanding ET trends is crucial to predict
Chiew, Francis HS, Liu, Changming, Liu, Yi Y, Lu, Xingjie, McVicar, Tim R, Miralles, Diego, Pang, Ming, Peña-Arancibia, Jorge L, Vaze, Jai, Wang, Yingping, Zhang, Yongqiang, Zheng, Hongxing   +11 more
core   +1 more source

Calculation and Simulation of Evapotranspiration of Applied Water

Journal of Integrative Agriculture, 2012
The University of California, Davis and the California Department of Water Resources have developed a weather generator application program “SIMETAW” to simulate weather data from climatic records and to estimate reference evapotranspiration (ETo) and ...
Richard L Snyder, Shu Geng, Morteza Orang, Sara Sarreshteh   +3 more
doaj   +1 more source

A new regional cotton growth model based on reference crop evapotranspiration for predicting growth processes. [PDF]

Sci Rep, 2023
Lin S, Deng M, Wei K, Wang Q, Su L.
europepmc   +1 more source

Prediction of Greenhouse Tomato Crop Evapotranspiration Using XGBoost Machine Learning Model. [PDF]

Plants (Basel), 2022
Ge J, Zhao L, Yu Z, Liu H, Zhang L, Gong X, Sun H.   +6 more
europepmc   +1 more source

The simplified hybrid model based on BP to predict the reference crop evapotranspiration in Southwest China. [PDF]

PLoS One, 2022
Zhao Z, Feng G, Zhang J.
europepmc   +1 more source