Greenhouse crop irrigation method and system

Abstract

The invention provides a greenhouse crop irrigation method and system. The greenhouse crop irrigation method comprises the steps as follows: acquiring position information of a target greenhouse, and determining weather forecast information in a preset time period; based on a differential environment model, according to the weather forecast information, determining environment information in a preset time period; according to the environment information, determining the theoretical water demand of the target greenhouse in the preset time period; according to the theoretical water demand and crop planting information, determining the accumulative irrigation amount demand of the target greenhouse in the preset time period; and determining the irrigation time and the irrigation amount of pre-irrigation according to the accumulative irrigation amount demand. According to the greenhouse crop irrigation method and system provided by the invention, the main environment information in the greenhouse is simulated by using the outdoor weather forecast information, irrigation decision data is acquired, the water demand information of crops in different quantities of facility structures with the same type is forecasted, the greenhouse crops are irrigated in advance according to the water demand of the greenhouse crops, so that irrigation decision-making cost of the greenhouse crops is reduced, and the utilization rate of irrigation decision-making data is increased.

Description

technical field [0001] The invention relates to the technical field of intelligent irrigation, in particular to a greenhouse crop irrigation method and system. Background technique [0002] The growth and development of greenhouse crops is fast, and the consumption of water is large. The demand for water in different growth stages is also very different. Therefore, the precise and on-demand supply of water in different growth stages is the key to ensure the healthy growth of greenhouse crops. [0003] The replenishment after water consumption of greenhouse crops mainly comes from irrigation. The rationality of irrigation time and the accuracy of irrigation amount are the main considerations for realizing precise water management of greenhouse crops. [0004] At present, greenhouse crop irrigation technology mainly uses meteorological data collected by environmental sensors in the greenhouse as the basis for irrigation decision-making. Due to the high price of environmental s...

AI Technical Summary

Problems solved by technology

Therefore, if the time is not suitable for irrigation using the existing method, it is easy to cause too much or too little one-time water replenishment irrigation. Once it exceeds or falls below the normal demand limit of crops, it will seriously affect the yield and quality; and using this method to irrigate It has hysteresis and cannot guarantee the normal demand for water in the later growth and development stages of greenhouse crops

[0006] Therefore, the current irrigation technology lacks a low-cost irrigation decision-making method that can accurately supply water according to the growth requirements of greenhouse crops in the next development stage.

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