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CO2 gas fertilization method and device based on zero concentration difference inside and outside the system

A fertilization method and zero concentration difference technology, applied in fertilization methods, fertilization devices, gardening methods, etc., can solve the problems of difficult gas control, natural leakage, low utilization rate, etc., to extend the harvest period, early harvest period, improve The effect of utilization efficiency

Active Publication Date: 2016-01-13
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a CO based on zero concentration difference inside and outside the system 2 The gas fertilization method and its device solve the problems of greenhouse CO in the prior art. 2 CO present in the fertilization method 2 Technical problems such as difficult gas control, poor safety, many natural leakages, and low utilization rate

Method used

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  • CO2 gas fertilization method and device based on zero concentration difference inside and outside the system
  • CO2 gas fertilization method and device based on zero concentration difference inside and outside the system
  • CO2 gas fertilization method and device based on zero concentration difference inside and outside the system

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Effect test

Embodiment 1

[0040] Example 1. CO based on zero concentration difference inside and outside the system 2 Gas Fertilizer

[0041] Such as figure 1 As shown, the CO provided by the present invention based on the zero concentration difference inside and outside the system 2 Gas fertilization unit including CO 2 Additional control system, embedded information acquisition and control chip, sensor module and actuator module, CO 2 The additional control system is connected with the embedded information acquisition and control chip, CO 2 Added regulation system for ARM-based CO 2 Add control system.

[0042] The CO 2 In the gas fertilization device, the sensor module includes an indoor CO2 connected to an embedded information acquisition and control chip. 2 sensor, outdoor CO 2 sensor, indoor temperature sensor, outdoor temperature sensor, indoor humidity sensor and indoor radiation sensor; the actuator module includes a CO connected to the embedded information acquisition and control chip...

Embodiment 2

[0047] This embodiment was carried out in the solar greenhouse strawberry planting from 2011 to 2012. The specific experimental conditions and effects are as follows:

[0048] The species of greenhouse crops tested is strawberry, and the variety is Hongyan.

[0049] The planting location of the solar greenhouse is Strawberry Garden in Dongying, Xingshou Town, Changping District, Beijing; the solar greenhouse has a span of 8m and a length of 50m, and is equipped with external insulation quilts, and the top and sides can be manually ventilated.

[0050] In order to compare the effects, three greenhouses were used as the CO concentration based on the zero concentration difference method. 2 Gas addition test greenhouse (ZeroConcentrationDifference method, ZCD test area), based on timed release of CO 2 Gas enhancement test greenhouse (TimingCO 2 Enrichmentmethod, TCE test area) and control greenhouse (CK test area) were used for strawberry planting, and the same strawberry planti...

Embodiment 3

[0058] This embodiment was carried out in the solar greenhouse strawberry planting from 2012 to 2013. The specific experimental conditions and effects are as follows:

[0059] The species of greenhouse crops to be tested is still strawberry, and the variety is Zhangji.

[0060] The planting location of the solar greenhouse is still Dongying Strawberry Garden, Xingshou Town, Changping District, Beijing, but the greenhouse used is different; the solar greenhouse has a span of 8m and a length of 50m, with external insulation quilts, and manual ventilation on the top and sides.

[0061] In order to compare the effects, three greenhouses were used as the CO concentration based on the zero concentration difference method. 2 Gas application test greenhouse (Zero Concentration Difference method, ZCD test area), based on high concentration CO 2 CO release method 2 Strawberry planting was carried out in the greenhouse of gas application test (High Concentration Control method, HCC tes...

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Abstract

The invention discloses a CO2 gas fertilization method and a CO2 gas fertilization device based on zero concentration difference inside and outside a system. The method comprises the following steps of: detecting the CO2 concentration in the system and the CO2 concentration in the atmosphere, and when the CO2 concentration in the system is lower than the CO2 concentration in the atmosphere, releasing CO2 gas into the system; and when the CO2 concentration in the system is higher than the CO2 concentration in the atmosphere, stopping releasing CO2 gas into the system, namely realizing CO2 gas fertilization for the system. According to the method and the device which are provided by the invention, the CO2 gas utilization efficiency for greenhouse CO2 gas fertilization is improved, the greenhouse crop yield is increased, the greenhouse crop quality is improved, and the beneficial effects of getting to the harvesting date in advance and prolonging the harvesting period are achieved. According to the method and the device which are provided by the invention, the CO2 gas leakage loss for the greenhouse CO2 gas fertilization is reduced to the maximum extent; the problem of CO2 secondary pollution caused by a greenhouse CO2 gas fertilization technology to the environment is solved.

Description

technical field [0001] The invention relates to a CO based on the zero concentration difference inside and outside the system 2 A gas fertilization method and a device thereof belong to the technical field of facility agriculture. Background technique [0002] my country's protected agriculture area has grown to more than 3.5 million hectares, and more than half of the facilities are solar greenhouses and plastic greenhouses. Among them, solar greenhouses with better economic benefits have expanded to more than 700,000 hectares, becoming the main support for my country's "vegetable basket project". type of facility. Due to its low operating cost, relatively low technical threshold, and good economic benefits, solar greenhouses have been popularized in northern my country. However, there are still many problems in the production of vegetables in solar greenhouses: 1) Extensive environmental regulation leads to low output and poor quality of facilities, which seriously restri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00A01G7/02
Inventor 贺冬仙杜维芬古在丰树
Owner CHINA AGRI UNIV
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