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CO2 gas fertilizer fine regulation and control method and device used for solar greenhouse

A technology of solar greenhouse and air fertilizer, applied in horticultural methods, botanical equipment and methods, various fluid ratio control, etc., can solve problems such as low utilization rate of air fertilizer

Active Publication Date: 2014-02-26
CHINA AGRI UNIV
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a CO 2 Gas fertilizer fine-tuning method and device, using this method can make full use of the environmental information and crop growth information easily obtained by the Internet of Things, and realize the CO 2 The fine regulation of gas fertilizer solves the problem of low utilization rate of gas fertilizer in solar greenhouses and achieves the goal of high yield and high efficiency

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  • CO2 gas fertilizer fine regulation and control method and device used for solar greenhouse
  • CO2 gas fertilizer fine regulation and control method and device used for solar greenhouse
  • CO2 gas fertilizer fine regulation and control method and device used for solar greenhouse

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Embodiment Construction

[0035] The technical solutions of the embodiments of the present invention will be further described in detail below through the accompanying drawings and embodiments.

[0036] The invention discloses a CO for solar greenhouse 2 The method of fine regulation of gas and fertilizer is mainly to apply CO on demand for crops in sunlight greenhouse 2 To increase crop yield and quality, and increase CO 2 Utilization rate of gas and fertilizer.

[0037] figure 1 Determining the optimal CO 2 The establishment of a photosynthetic rate prediction model to predict the demand for gas fertilizer and the value of photosynthesis rate.

[0038] Among them, the establishment process of the photosynthetic rate prediction model includes the following steps:

[0039] S11: Obtaining experimental data: monitoring greenhouse environment information (air temperature, air humidity, light intensity, CO2 concentration, conductivity and pH value of cultivation substrate) and crop growth information (NDVI value r...

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Abstract

A CO2 gas fertilizer fine regulation and control method and a device which are used for a solar greenhouse are provided. The device monitors environment information and crop growth information of the greenhouse in real time; and through a photosynthetic rate prediction model based on a BP neural network, the optimal CO2 gas fertilizer quantity demanded is determined and the value of the photosynthetic rate is predicted, and therefore fine regulation and control of CO2 concentration is achieved. According to the invention, the fact that a CO2 gas fertilizer in the solar greenhouse needs to be finely supplied in dependence on crop growth demands is achieved, the quality of greenhouse crops is improved, the yield of the greenhouse crops is risen, and environmental pollution caused by excessive application of the CO2 gas fertilizer is avoided.

Description

Technical field [0001] The present invention relates to a CO used in solar greenhouse 2 Gas fertilizer fine control method and device. Background technique [0002] As a typical representative of facility agriculture, the solar greenhouse is a special agricultural production method with high input and output, high integration of knowledge and technology, and obvious characteristics of factory production. The various environmental information of the solar greenhouse has certain controllability. Taking full advantage of this advantage can obtain higher crop quality and higher return on investment. CO 2 It is an important raw material for crop growth. During photosynthesis, plants use CO 2 And light to produce carbohydrates for crop growth, so a rich air environment will be conducive to crop growth. On the other hand, CO 2 Should be controlled within a reasonable range, excessive CO 2 Not only is it uneconomical, but it also has a negative effect on the environment. Due to CO 2 I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D11/13A01G7/02
Inventor 张漫蒋毅琼王伟珍李民赞刘刚沙莎
Owner CHINA AGRI UNIV
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