A Crop Model-Based Method for Optimal Regulation of Environmental Factors in Closed Systems

Abstract

The invention discloses an optimal regulating and controlling method based on a crop model for environmental factors in a closed system. The optimal regulating and controlling method comprises the following steps: 1, constructing the crop model based on a TomSim model and a GreenLab model, wherein the TomSim model is used for constructing a photosynthetic crop yield model in the closed system so as to simulate the influences of environmental conditions on a photosynthetic process, and the GreenLab model is used for calculating dry weights of biomass allocation of different organs; 2, constructing an optimal regulating and controlling model for the environmental factors in the closed system for quantificationally describing relationship between the three environmental factors of temperature, illumination and CO2 concentration and the photosynthetic crop yield based on the crop model; 3, optimally regulating and controlling the environmental factors. According to the optimal regulating and controlling method disclosed by the invention, through the means of computer simulation, the three environmental factors of the temperature, the illumination and the CO2 concentration are optimized, the largest photosynthetic crop yield is realized, besides the energy consumption is reduced, and the requirement of regulating and controlling closed environmental factors with low input and high output is satisfied.

Description

technical field [0001] The invention belongs to the field of data processing methods and general botany technology, and in particular relates to a crop model-based method for optimizing and regulating environmental factors in a closed system. Background technique [0002] The crop model is a powerful tool to assist crop growth, environmental regulation and cultivation management in closed systems. Generally speaking, for closed systems growing in limited spaces, such as controlled ecological life support systems, plant factories, etc., without water and fertilizer stress, the growth and development of crops are mainly affected by three environmental factors: temperature, light and carbon dioxide. [0003] Temperature is one of the important environmental factors for crop growth and development. All biochemical reactions that occur during the entire growth cycle of crops must be carried out at a certain temperature. When the temperature drops or rises to a certain level, the...

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Problems solved by technology

However, due to the fact that crops have a certain life cycle and the data acquisition period is long, it is difficult to quickly evaluate the response of the system to changes in external or internal conditions (such as light intensity), and the response of crops to the environment has a short-term effect. Insufficiency of one environmental factor will inhibit its growth

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