Results 41 to 50 of about 113,638 (207)

Water use and crop coefficient of subsurface drip-irrigated lettuce in Central Arizona Demanda hídrica e coeficiente de cultura da alface irrigada por gotejamento sub-superficial na região central do Arizona

Revista Brasileira de Engenharia Agrícola e Ambiental, 2005
A two year field study (1996/97 and 1997/98 growing seasons) was carried out at the Maricopa Agricultural Center (33º04'07" N; 111º57'18" W) of the University of Arizona, USA, to investigate the water use and to derive Kc's for subsurface drip-irrigated ...
Aureo S. de Oliveira, Edward C. Martin, Donald C. Slack, Edward J. Pegelow, Allen D. Folta   +4 more
doaj   +1 more source

Analysis of the Accuracy Comparison of Five Different Models of Valiantzas Equation in the Estimation of Reference Evapotranspiration [PDF]

علوم و مهندسی آبیاری, 2018
Evapotranspiration is one of the most important factors in hydrological cycle. Potential evapotranspiration is used to design in irrigation and drainage networks and hydrological studies (Davis & Dukes, 2010).
Saeid Mehdizadeh, Farshad Khashayi, Javad Behmanesh, Reza Delir Hasan Niya   +3 more
doaj   +1 more source

Evapotranspiration Model-based Scheduling Strategy for Baby Pakchoi Irrigation in Greenhouse

HortScience, 2020
Water management is one of the most important operations in greenhouse baby leaf production. However, growers mainly irrigate the plants based on experience, which generally leads to yield loss, uneven quality, and low water-use efficiency.
Doudou Guo, Ziyi Chen, Danfeng Huang, Jingjin Zhang   +3 more
doaj   +1 more source

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

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

Evapotranspiration Estimation and Irrigation Performance Assessment Using Remote Sensing: A Case Study of the Ergani Dam Irrigation System (Turkey)

Irrigation and Drainage, EarlyView.
ABSTRACT Efficient water resource management is critical for sustainable agriculture, with evapotranspiration (ET) serving as a key parameter. Remote sensing (RS) techniques offer cost‐effective approaches for ET estimation and irrigation performance assessment in extensive agricultural systems.
Kivanç Hayri Doganay, Bekir Sitki Karatas   +1 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

The Comparison of SEBAL Algorithm with SWAP Model and Computational Method to Determine Evapotranspiration [PDF]

علوم و مهندسی آبیاری, 2016
Accurate quantification of ET in irrigated agricultural lands is crucial for planning for water allocation, optimizing crop production irrigation management, evaluating the effects of changing land use on water yields.
Mostafa Yaghobzade, Zahra Izapanah, Saeid Broomand nasab, Hesam Seyed kaboli   +3 more
doaj   +1 more source

A microcontroller - Based Irrigation Scheduling Using FAO Penman-Monteith Equation

Turkish Journal of Agricultural Engineering Research, 2023
This study uses the Food and Agricultural Organization (FAO) Penman-Monteith equation to develop a crop water algorithm needed to automate the supply of specific amount of water to crops, depending on their different crop water requirements. This was done to deviate from the practice of supplying the same amount of water to different crops during ...
Ogidan, Olugbenga Kayode, OLUWAGBAYIDE, Samuel Dare, Ale, Thomas   +2 more
openaire   +3 more sources