Results 11 to 20 of about 7,333,950 (193)

Variable-Rate Irrigation in Diversified Vegetable Crops: System Development and Evaluation

AgriEngineering
Diversified cropping systems offer an alternative to sustainable agriculture, but they present high spatial variability. This study aims to develop and evaluate an automated irrigation system and a variable-rate water application for areas with ...
Thalissa Oliveira Pires Magalhães, Marinaldo Ferreira Pinto, Marcus Vinícius Morais de Oliveira, Daniel Fonseca de Carvalho   +3 more
doaj   +2 more sources

Hydraulic performance characterisation of variable rate irrigation technology

, 2021
Variable-rate irrigation (VRI) technology for centre pivots and lateral moves has been commercially available for over three decades, but its uptake has been limited, with growers citing additional capital and operating costs, the detrimental impact on hydraulic and irrigation performance, as key issues.
Msibi, Sandile Trevor
openaire   +3 more sources

Modelling Soil Water Infiltration and Wetting Patterns in Variable Working-Head Moistube Irrigation

Agronomy, 2023
Moistube irrigation is an efficient method that accurately irrigates and fertilizes agricultural crops. Investigation into the mechanisms of infiltration behaviors under an adjusted working head (WKH) benefits a timely and artificially regulating ...
Yaming Zhai, Wuerkaixi Kurexi, Ce Wang, Chengli Zhu, Zhanyu Zhang, Yi Li   +5 more
doaj   +2 more sources

An Irrigation Homogenity Assessment of a Variable Rate Sprinkler Irrigation [PDF]

Acta Horticulturae et Regiotecturae, 2021
Abstract Nowadays, the development of irrigation is increasingly recognized as a necessary factor in agriculture, primarily because of global warming. Depending on the field conditions, the most commonly used method is sprinkler irrigation.
Andrea Szabó, János Tamás, Attila Nagy   +2 more
openaire   +1 more source

Fusion of multi soil data for the delineation of management zones for variable rate irrigation [PDF]

, 2013
Up until now, there have been no multi-sensor approaches used to estimate available water content (AWC) in order to determine variable rate irrigation. This has been a major problem for growers adopting precision farming technologies.
Alhwaimel, Saad Abdulaziz
core   +7 more sources

Variable Rate Irrigation of Maize and Soybean in West-Central Nebraska Under Full and Deficit Irrigation. [PDF]

Front Big Data, 2019
Variable rate irrigation (VRI) may improve center pivot irrigation management, including deficit irrigation. A remote-sensing-based evapotranspiration model was implemented with Landsat imagery to manage irrigations for a VRI equipped center pivot irrigated field located in West-Central Nebraska planted to maize in 2017 and soybean in 2018.
Barker JB, Bhatti S, Heeren DM, Neale CMU, Rudnick DR.   +4 more
europepmc   +4 more sources

Using NDVI For Variable Rate Cotton Irrigation Prescriptions

Applied Engineering in Agriculture, 2022
<p>This is digital research data corresponding to a published manuscript, "Using NDVI For Variable Rate Cotton Irrigation Prescriptions", in <em>Applied Engineering in Agriculture</em>, 2022, Volume 38(5): 787-795. doi:10.13031/aea.15071.
Ken Stone, Eric D. Billman, Philip J. Bauer, Gilbert Sigua   +3 more
openaire   +1 more source

Spatial irrigation scheduling for variable rate irrigation

Proceedings of the New Zealand Grassland Association, 2010
Recent unprecedented demands on freshwater for irrigation have led to over-allocations and restrictions. Variable rate irrigation (VRI) aims to optimise scheduling according to soil differences using irrigation prescription maps coupled with software-driven variable rate irrigators and individual sprinkler control for site specific management.
C.B. Hedley, S. Bradbury, J. Ekanayake, I.J. Yule, S. Carrick   +4 more
openaire   +1 more source

Review of the economic-mathematical analysis for the management of irrigation water and other crop production parameters [PDF]

Iran Agricultural Research, 2023
Plant growth and yield are influenced by many production parameters such as the amount of irrigation water, fertilization, plant density, etc. Due to the limitation of resources and agricultural inputs, increased production costs, food demand, population
A Shabani, A.R Sepaskhah, M.M Moghimi, Abdol Rassoul Zarei   +3 more
doaj   +1 more source

Variable Rate Irrigation (VRI)

, 2020
Many types of technology are used in variable rate application for Precision Agriculture. In this case, we are talking about Variable Rate Irrigation technology. Materials for this topic include a presentation and a text, that are complementary.
João Coimbra, José Rafael Marques da Silva, Manuela Correia   +2 more
openaire   +1 more source