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Wetting Pattern Models for Drip Irrigation: New Empirical Model
Publisher: American Society of Civil Engineers
Abstract: Reliable information about the wetted dimensions of soil under drip irrigation helps designers to determine optimal emitter flow rates and spacings to reduce system equipment costs and provide better soil water conditions ...
Automation of a Center Pivot Using the Temperature-Time-Threshold Method of Irrigation Scheduling
Publisher: American Society of Civil Engineers
Abstract: A center pivot was completely automated using the temperature-time-threshold method of irrigation scheduling. An array of infrared thermometers was mounted on the center pivot, and these were used to remotely determine the ...
An Explicit Equation for the Maximum Water Application Depth in Center Pivot Irrigation
Publisher: ASCE
Abstract: A simple explicit formula was derived to determine the maximum irrigation depth (Dmax) that can be applied per irrigation without any runoff under a center pivot and/or linear move irrigation system. The analysis is built ...
Design of Zero Slope Microirrigation Laterals: Effect of the Friction Factor Variation
Publisher: American Society of Civil Engineers
Abstract: Microirrigation has become quite a common practice in agricultural production in various parts of the world. To achieve the optimum (hydraulic and economic) system performance, designers are often faced with the problem ...
Design Emission Uniformity of Horizontal Tapered Drip Laterals from the Normalized Pressure Head Distribution Approach
Publisher: American Society of Civil Engineers
Abstract: A new analytical solution is developed to calculate the hydraulic emission uniformity (EUh) of horizontal tapered drip laterals. Our methodology builds upon normalizing the pressure head profiles along each segment of the ...