Results 41 to 50 of about 1,264 (175)

Machine Learning‐Based Estimation of Reference Evapotranspiration and Crop Coefficients for Wheat Under Diverse Climatic Conditions

Irrigation and Drainage, EarlyView.
ABSTRACT Accurate estimation of reference evapotranspiration (ET0) and crop coefficients (Kc) is critical for irrigation planning, particularly in data‐limited regions where agriculture dominates freshwater consumption. Although machine learning (ML) methods have been widely applied to ET0 and Kc estimation, most studies address these parameters ...
Ilker Angin, Hasan Er, Mete Yaganoglu, Muhammed Sungur Demir, Abdullah Muratoglu   +4 more
wiley   +1 more source

Water deficit and water surplus maps for Brazil, based on FAO Penman-Monteith potential evapotranspiration

Ambiente e Agua - An Interdisciplinary Journal of Applied Science, 2008
The climatological water balance (CWB) proposed by Thornthwaite and Mather (1957) is a useful tool for agricultural planning. This method requires the soil water holding capacity (SWHC), rainfall (R) and potential evapotranspiration (PET) data as input.
Ronalton Evandro Machado, Dayana Lardo dos Santos, Paulo Cesar Sentelhas   +2 more
openaire   +4 more sources

Comparison of different reference evapotranspiration (ET0) models and determination of crop-coefficients of french bean (Phesiolus vulgaris.) in mid hill region of Meghalaya

Journal of Agrometeorology, 2017
The water requirement and crop evapotranspiration (ETc)is determined using reference evapotranspiration (ET0) and crop-coefficient (kc). Numerous models are available for estimation of ET0,among which Penman-Monteith (FAO-56) model is considered to be ...
M. TAHASHILDAR, PRADIP K. BORA, LALA I. P. RAY, D. THAKURIA   +3 more
doaj   +1 more source

Estimating Potential Evapotranspiration in Maranhão State Using Artificial Neural Networks [PDF]

Revista Brasileira de Meteorologia, 2020
The use of technology and planning in agricultural production is essential in Northeastern Brazil, which is the region of the country that most suffers from water shortage.
Klara Cunha de Meneses, Lucas Eduardo De Oliveira Aparecido, Kamila Cunha de Meneses, Maryzélia Furtado de Farias   +3 more
doaj   +2 more sources

Variable Rate Irrigation: A Long‐Term Simulated and Field Data Analyses of Irrigation Practices, Field Variability, Economic Feasibility and Profitability

Irrigation and Drainage, EarlyView.
ABSTRACT Long‐term economic analyses of variable rate irrigation (VRI) strategies were performed compared with uniform irrigation management (UIM) in a reference production field using the AquaCrop model. Five strategies to trigger irrigation were as follows: (Field Capacity‐VRI, Driest Soil Trigger‐VRI, Water Mining‐VRI, Conventional Uniform ...
Sahil Sharma, Suat Irmak, William Kranz
wiley   +1 more source

Avaliação de desempenho de métodos para estimativas de evapotranspiração de referência para a região de Palotina, Estado do Paraná = Assessment of modeling approaches for estimates of reference evapotranspiration for the region of Palotina, Paraná State, Brazil

Acta Scientiarum. Agronomy, 2008
O objetivo do presente trabalho foi comparar a eficiência dos métodos de estimativa da evapotranspiração de referência em relação ao método de FAO Penman- Monteith.
Vera Lucia Greco Syperreck, Elcio Silvério Klosowski, Marcelo Greco, Cleber Furlanetto   +3 more
doaj  

Estimativa da evapotranspiração e coeficiente de cultivo da Heliconia bihai L., cultivada em ambiente protegido.

Ornamental Horticulture, 2008
O trabalho foi desenvolvido em ambiente protegido, do tipo telado, no Campo Experimental do Curu, região litorânea do Estado do Ceará, e teve como objetivo estimar a evapotranspiração e os coeficientes de cultivo da Heliconia bihai L. empregando o método
Rubens Sonsol Gondim, Antônia Renata Monteiro Gomes, Fred Carvalho Bezerra, Carlos Alexandre Gomes Costa, Natanael Santiago Pereira   +4 more
doaj   +1 more source

Evapotranspiración de referencia estimada con Fao-Penman-Monteith, Priestley-Taylor, Hargreaves y RNA

Revista Mexicana de Ciencias Agrícolas, 2018
Las necesidades de agua de riego de los cultivos se basan en la estimación de la evapotranspiración de referencia (ETo) de cada zona en particular, están sujetas a la limitación de información meteorológica existente. El objetivo fue calcular ETo con FAO-Penman-Monteith (FAO-P-M), Hargreaves (H), Priestly-Taylor (P-T) y redes neuronales ...
Sandra Santiago-Rodríguez, Ramón Arteaga-Ramírez, Dora Ma. Sangerman-Jarquín, Rocío Cervantes-Osornio, Agustín Navarro Bravo   +4 more
openaire   +2 more sources

A Holistic Assessment of Water Footprint and Irrigation Performance Indicators With Respect to Agricultural Water Productivity

Irrigation and Drainage, EarlyView.
ABSTRACT Global warming has intensified prolonged droughts in many regions, including Türkiye, resulting in growing pressure on already limited water resources. Agriculture, as the largest water‐consuming sector, faces critical challenges in sustaining productivity under increasing water scarcity. In this context, assessing water use efficiency through
Elifnaz Torun, Belgin Çakmak
wiley   +1 more source

Performance of methods for estimation of table beet water requirement in Alagoas

Revista Brasileira de Engenharia Agrícola e Ambiental
Optimization of water use in agriculture is fundamental, particularly in regions where water scarcity is intense, requiring the adoption of technologies that promote increased irrigation efficiency.
Daniella P. dos Santos, Célia S. dos Santos, Leiliane M. da Silva, Márcio A. L. dos Santos, Cícero G. dos Santos   +4 more
doaj   +1 more source