The Effect of Water Saving and Production Increment by Drip Irrigation Schedules

Abstract

This paper will use the straight line to describe the irrigation scheduling parameters, percent of deficit, application efficiency and coefficient of variation by simple mathematical model. More over, this paper uses the cost of water, price of yield, uniformity of the drip irrigation system, crop response to water application and environmental concerns of pollution and contamination to determine the optimal irrigation schedule. A case study shows that the optimal irrigation schedule can achieve water saving and production increment compared with the conventional irrigation schedule in which the whole field is fully irrigated.