Cotton moisture monitoring drip irrigation control method and system based on soil water potential

Abstract

The invention discloses a cotton moisture monitoring drip irrigation control method and system based on soil water potential, and relates to the technical field of agricultural planting. According tothe technical scheme, the cotton moisture monitoring drip irrigation control method is characterized by comprising the steps of establishing a daily distribution curve of the soil water potential; establishing a temperature daily distribution curve; calculating to obtain a daily consumption distribution curve of the previous day; establishing a unit temperature consumption associated curve graph;calculating to obtain an actual temperature daily difference curve; matching historical temperature daily difference line segments from a historical temperature daily difference curve, cutting out unit temperature consumption associated line segments, establishing a predicted consumption associated curve graph after the unit temperature consumption associated line segments are recombined; and calculating a daily consumption prediction curve of the current day, and controlling the drip irrigation amount of drip irrigation to a monitored object in real time according to the daily consumption prediction curve. According to the cotton moisture monitoring drip irrigation control method, the daily consumption of the current day is predicted according to historical data, the drip irrigation amount of drip irrigation of the monitored object does not need to be calculated in real time, the overall implementation complexity is low, the network requirement is low, and the method can adapt to a planting area with a poor network.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, and more particularly, to a method and a system for drip irrigation control of cotton moisture monitoring based on soil water potential. Background technique [0002] In recent years, my country has introduced and installed large-scale spray and drip irrigation systems in response to the problem of water and soil imbalance caused by comprehensive agricultural development. The introduction of these advanced irrigation methods has played a great role in saving water and increasing crop yields. While possessing a large number of advanced irrigation facilities, there is a lack of matching precision irrigation technology, and irrigation is still carried out based on human experience. Irrigation quota up to 40m 3 , even 60m 3 , irrigation quota up to 400m 3 . It not only causes the waste of irrigation water, but also cannot be irrigated in time in the main period of cotton, resulting...

AI Technical Summary

Problems solved by technology

It not only causes the waste of irrigation water, but also cannot irrigate in time during the main period of cotton, resulting in a reduction in production that cannot be underestimated; in addition, some areas use intelligent monitoring methods based on soil water potential for precise irrigation, however, the existing intelligent monitoring based on soil water potential Most of them are real-time monitoring methods, which not only have a large amount of real-time calculation and high complexity, but also require high network resources, which makes it difficult to promote and apply in remote areas

The lack of precision irrigation technology matching irrigation facilities is the main reason why irrigation facilities cannot give full play to their technical advantages and lead to poor production efficiency

Images