Results 211 to 220 of about 33,213 (261)

Decision Process for the Application of Variable Rate Irrigation

2012 Dallas, Texas, July 29 - August 1, 2012, 2012
This paper will focus on a commercial process for making decisions on the selection of the type of variable rate irrigation or even if variable rate irrigation makes sense for a particular field. Included will be examples of specific fields and a comparison of the projected benefits, costs and payback of different types of variable rate irrigation ...
null Jacob LaRue, null Cole Fredrick
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Evaluation of a Variable Rate Irrigating Hill-seeder

2008 Providence, Rhode Island, June 29 - July 2, 2008, 2008
A variable rate irrigating hill-seeder is a drought-alleviating and water-saving agricultural machine that can adjust water application automatically according to the soil moisture content and realize the synchronization between water and seeds through photoelectric-detecting technology.
null Qing Yang, null Shuming Yang, null Chenghai Yang   +2 more
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Evaluation of Wireless Control for Variable Rate Irrigation

2006 Portland, Oregon, July 9-12, 2006, 2006
Development of a variable rate irrigation control system allows producers to maximize water efficiency, while minimizing the effects on their productivity. This research evaluated the performance of an irrigation system for variable rate water application with real-time wireless control and monitoring.
null Yunseop Kim, null Robert G. Evans, null William Iversen, null Francis J. Pierce   +3 more
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An iris mechanism for variable rate sprinkler irrigation

Biosystems Engineering, 2018
Variable rate irrigation intends to supply water at the right time and place in order to improve water-use efficiency, save energy and decrease nutrient leaching. The concept of an adjustable orifice sprinkler using an iris mechanism actuated by a stepper motor for use in variable rate irrigation was proposed and developed. A prototype was manufactured
Luiz R. Sobenko, Antonio P. de Camargo, Tarlei A. Botrel, Jeferson D.M. dos Santos, José A. Frizzone, Marcelo F. de Oliveira, Jorge V.L. da Silva   +6 more
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A Sensor-Actor Coordination protocol for Variable Rate Irrigation

2020 IEEE 14th International Conference on Application of Information and Communication Technologies (AICT), 2020
In mobile automated Wireless Sensor and Actuator Network (WSAN), resource rich actors are responsible for data collection, decision making, and implementing control actions. Information collection from entire event region is the prerequisite for generation of control actions. However, random stopping locations and predefined time for data collection at
null Sapna, Aditya Trivedi, Kiran Kumar Pattanaik   +2 more
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VRDI - Variable Rate Drip Irrigation in Vineyards

Advances in Animal Biosciences, 2017
Vineyards worldwide are subjected to spatial variability, which can be exhibited in both low and high yield areas. We developed a variable rate drip irrigation (VRDI) concept to reduce such variability. The VRDI system divides the vineyard into 30×30-meter irrigation zones, enabling individual irrigation of each zone according to normalized difference ...
I. Nadav, A. Schweitzer
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Instrumentation for Variable-Rate Lateral Irrigation System

2005 Tampa, FL July 17-20, 2005, 2005
Crops in the Southern United States are generally produced in fields which are known to have a high degree of variability in soil type, topography, water holding capacity and other major factors which affect crop production. Therefore, conventional, uniform-rate overhead irrigation systems tend to over-apply or under-apply water to the crop.
null Sam Moore, null Young J. Han, null Ahmad Khalilian, null Tom O. Owino, null Burhan Niyazi   +4 more
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Variable Rate Precision Irrigation Technology for Deficit Irrigation of Processing Tomato

Irrigation and Drainage, 2018
AbstractCentre pivot machines, with a variable rate irrigation (VRI) package that provides individual sprinkler control systems (VRI iS), are not common. This research focuses on how uniform the water distribution is under VRI control, and on the size of over‐ and under‐irrigated areas and volumes.
Sándor Takács, Tibor Bíró, Lajos Helyes, Zoltán Pék   +3 more
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The Variable Rate Irrigation Management Challenge

2018
The potential for variable rate irrigation (VRI) is an approach to making better use of scarce water. Intuitively it makes sense to apply irrigation water when and where it will provide the most benefit, but implementing that simple insight is complicated because water control is costly.
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Variable Rate Irrigation 2010 Field Results

2011 Louisville, Kentucky, August 7 - August 10, 2011, 2011
Historically, the center pivot has been used by a farmer/operator to apply a selected depth of water uniformly across the entire field. Changes in technology have occurred that give growers the ability to apply differing amounts of water and products carried in the water to different zones along the pivot and sectors around the field (Perry 2005). This
openaire   +1 more source