Results 251 to 260 of about 198,007 (304)

Investigating irrigation scheduling for rice using variable rate irrigation

Agricultural Water Management, 2017
Abstract Because almost all US rice is produced with continuous flood irrigation, little information addresses irrigation scheduling for rice; however, successful production without a continuous flood will require timely irrigation. A field study conducted at the University of Missouri Fisher Delta Research Center Marsh Farm during the 2013 and 2014 ...
Earl Vories, William (Gene) Stevens, Matthew Rhine, Zachary Straatmann   +3 more
openaire   +1 more source

Spatiotemporal Lagged Models for Variable Rate Irrigation in Agriculture

Journal of Agricultural, Biological and Environmental Statistics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sierra Pugh, Matthew J. Heaton, Jeff Svedin, Neil Hansen   +3 more
openaire   +1 more source

Perspectives on delineating management zones for variable rate irrigation

Computers and Electronics in Agriculture, 2015
Up to 40% of soil available water content variance was explained by pie shape zoning.Dynamic zoning strategy may be needed if soil spatial arrangement varies by depth.Soil ECa and satellite images were useful attributes for irrigation zone delineation.
Amir Haghverdi, Brian G. Leib, Robert A. Washington-Allen, Paul D. Ayers, Michael J. Buschermohle   +4 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source