Decision-making method, control device and control system for water-saving irrigation of winter wheat

Abstract

Embodiments of the present invention provide a decision-making method for water-saving irrigation of winter wheat, a control device and a control system. Among them, the above method judges whether crops need to be irrigated by comparing the total crop water transpiration obtained in a continuous preset time period with the preset irrigation amount, and if the total crop water transpiration is greater than or equal to the preset irrigation amount, then Irrigate the crops, and if it is less than, do not irrigate temporarily. The winter wheat water-saving irrigation decision-making method, control device and control system provided by the embodiments of the present invention compare the total water transpiration of crops with the preset irrigation amount to judge whether it is necessary to irrigate the crops. If the total water transpiration of crops is greater than or equal to the preset If the irrigation amount is set, the crops will be irrigated, and if it is less than that, the irrigation will not be performed temporarily, which ensures the amount of water replenishment for the crop once, that is, it will not be over-irrigated, and will not cause waste of water resources. The method is simple and easy to use, making Balance supply and demand of water resource utilization and maximize efficiency.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of farmland irrigation, and in particular to a decision-making method for water-saving irrigation of winter wheat, a water-saving irrigation control device, a water-saving irrigation control system, electronic equipment, and a non-transitory computer-readable storage medium. Background technique [0002] The rotation of winter wheat and summer maize is the main crop rotation method for grain crops in northern my country. The growth of winter wheat goes through autumn, spanning the whole winter and spring, which is the driest and less rainy period in the planting area. Water is the primary condition for maintaining and stabilizing the production of winter wheat. Facing the fact that agricultural water consumption accounts for a high percentage of total water consumption, it is of great significance to solve the problems of water shortage restricting agricultural development in water-s...

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Problems solved by technology

[0004] The above-mentioned wheat irrigation methods mainly have the following problems: 1. Insufficient overall planning: sufficient and rationed water supply makes the water storage in the root zone of the crops saturated for a long period of time, and less groundwater is absorbed. Therefore, after the wheat is harvested and the corn is planted, The planting area enters the rainy season, and the water storage in the root zone increases, which is easy to form deep leakage and pollute the groundwater; 2. Unbalanced supply and demand: the water management method of sufficient amount and quota ignores the actual water consumption of crops under different weather conditions and the total annual rainfall Due to the large difference in rainfall time distribution, it is difficult to achieve an accurate match between water supply and crop water demand, and the water saving effect is not obvious; 3. Water use efficiency needs to be improved: the traditional sufficient and fixed water management method, water irrigation is too sufficient , for a considerable period of time after irrigation, the crop root system has extravagant transpiration, and even forms surface runoff, which does not give full play to the advantages of the drip irrigation system, and the water use efficiency is low

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