A method for optimizing water use in precise irrigation of summer corn

Abstract

The invention discloses a method for optimizing water consumption for precise irrigation of summer corn. Through the long-term continuous monitoring of the soil moisture dynamics in the wetting layer of the summer corn plan, with the determined lower limit of soil moisture as a reference, when the soil moisture is higher than the lower limit of soil moisture control, no irrigation is required; when the soil moisture is lower than the lower limit of soil moisture control , combined with the weather conditions determined by the weather forecast at that time and in the next few days, and then according to the growth of summer corn seedlings, comprehensively judge whether irrigation is needed. When it is determined that irrigation is needed, implement irrigation according to the irrigation water quota determined in step 1. If there is no need for irrigation, delay the irrigation time. This method helps to suppress the phenomenon of agricultural water resource waste and groundwater overexploitation, and improve regional irrigation water utilization. Rate.

Description

technical field [0001] The invention relates to the technical field of water-saving irrigation, in particular to a method for optimizing water consumption for precise irrigation of summer corn. Background technique [0002] Surface irrigation is a common irrigation method in the production of summer maize in semi-humid and semi-arid areas in my country. It has the advantages of saving labor, low consumption, and easy implementation, but it also has the disadvantages of low utilization rate of irrigation water and difficulty in controlling the quality of irrigation water. . Although the application of water-saving irrigation methods such as micro-irrigation and sprinkler irrigation has great advantages in improving the utilization rate of irrigation water and irrigation water quality, the high construction and installation costs and continuous investment in maintenance costs are of great concern to summer corn producers who gain economic benefits by harvesting grains. However...

AI Technical Summary

Problems solved by technology

However, choosing conventional surface irrigation means that excessive and excessive irrigation will occur all the time, because the irrigation water quality of surface irrigation requires that the designed irrigation quota is generally too large, and the irrigation quota in actual water use is often larger

With the improvement of national agricultural science and technology productivity, different types of irrigation devices, monitoring equipment and products are gradually applied to the field of conventional ground irrigation. However, most of the products currently on the market focus on the improvement of water transmission and distribution efficiency and the accuracy of specific water indicators. In terms of monitoring or information feedback, there is a lack of precise irrigation water optimization based on multiple factors such as crop water demand, real-time weather conditions, and irrigation indicators.

Images