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Device and method for automatic tobacco three-dimensional floating seedling raising

A floating seedling raising and three-dimensional technology, which is applied in botany equipment and methods, horticultural methods, agricultural gas emission reduction, etc., can solve the problems of low degree of automation of floating seedling raising, inability to perform seedling hardening operation, and inability to effectively adjust water and fertilizer supply, etc. Achieve the effect of improving photosynthesis efficiency, reasonable fertilizer amount and fertilization time, and good controllability of humidity environment

Inactive Publication Date: 2019-01-29
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing technology has gradually exposed some shortcomings that need to be improved, including the low degree of automation of the floating seedling raising technology, many processes need to be carried out manually one by one, the water and fertilizer supply cannot be effectively adjusted, and the seedling hardening operation cannot be performed.

Method used

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  • Device and method for automatic tobacco three-dimensional floating seedling raising
  • Device and method for automatic tobacco three-dimensional floating seedling raising
  • Device and method for automatic tobacco three-dimensional floating seedling raising

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the automatic tobacco three-dimensional floating seedling raising device of the present embodiment is located in the cultivation room and includes a PLC control system, a nutrient solution circulation system connected to the PLC control system, a lighting system, a temperature and humidity adjustment system and an air circulation system, and a nutrient solution circulation system. The system is connected with 40 hydroponic racks 18, wherein the nutrient solution circulation system includes a liquid storage tank 6, and three nutrient solution raw material tanks 12 communicated with the liquid storage tank 6, respectively adorn different nutrient solution raw materials, and the liquid storage tank 6 The nutrient solution is transported to the inlet of each hydroponic frame 18 by the water outlet pump 13, and the nutrient solution returns to the return bucket 19 after circulating on each hydroponic stand 18, and is drawn back into the liquid stora...

Embodiment 2

[0066] In the automatic three-dimensional floating seedling raising method of tobacco in this embodiment, in step (4), after the seeds germinate, enter the nutrient solution through the PLC system, and the system controls the metering pump to add water and nutrient solution raw materials. When the mixed solution reaches a certain level, The system turns on the stirring device and the ultraviolet disinfection lamp, and at the same time adds the nutrient solution raw materials according to the set EC value and PH value, so that the EC value of the nutrient solution is about 0.25mS / cm, and the prepared nutrient solution is obtained; the tobacco seedlings emerge in 20 days After left and right, increase the concentration of the nutrient solution so that the EC value of the nutrient solution is 0.5mS / cm.

[0067] Through the PLC control system, the indoor temperature is adjusted to about 24°C, the humidity is 60%, and the concentration of carbon dioxide is about 450ppm. Adjust the ...

Embodiment 3

[0069] In the automatic three-dimensional floating seedling raising method of tobacco in this embodiment, in step (4), after the seeds germinate, enter the nutrient solution through the PLC system, and the system controls the metering pump to add water and nutrient solution raw materials. When the mixed solution reaches a certain level, The system turns on the stirring device and the ultraviolet disinfection lamp, and at the same time adds the nutrient solution raw materials according to the set EC value and PH value, so that the EC value of the nutrient solution is 0.3mS / cm, that is, the prepared nutrient solution is obtained; the tobacco seedlings emerge in about 20 days Finally, increase the concentration of the nutrient solution so that the EC value of the nutrient solution is 0.45 mS / cm.

[0070] Through the PLC control system, the indoor temperature is adjusted to about 27°C, the humidity is 70%, and the concentration of carbon dioxide is about 450ppm. Adjust the light i...

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Abstract

The invention relates to a device and method for automatic tobacco three-dimensional floating seedling raising. The device comprises a PLC control system and a nutrient liquid circulation system, a lighting system, a temperature and humidity regulation system and an air circulation system which are connected with the PLC control system, wherein the nutrient liquid circulation system is connected with a plurality of hydroponic racks, each hydroponic rack is provided with a plurality of layers of planting troughs, and each planting trough is provided with a seedling raising tray; a liquid inletand a liquid outlet are formed in each layer of the planting troughs, the height of the liquid outlets is adjustable, and each seedling raising tray comprises a plurality of hole cavities which are evenly formed and used for accommodating substrate sowing holes; and the bottom of each hole cavity is further provided with a bottom hole, and after a nutrient solution is added into the planting troughs, the seedling raising trays float on the planting troughs. The temperature, humidity, illumination time and other environmental parameters of the internal environment can be regulated artificially,so that the effects of illumination, season, temperature and humidity and other natural conditions on field floating seedling raising of tobaccos are eliminated, the uncertainty caused by weather isreduced, and the emergence rate of tobacco seeds can be increased significantly.

Description

technical field [0001] The invention relates to a seedling raising device, in particular to an automatic three-dimensional floating seedling raising device for tobacco, and also relates to a seedling raising method thereof, belonging to the field of tobacco seedling raising and planting. Background technique [0002] Floating seedling raising is a soilless seedling raising method that seeds are sown in a seedling tray equipped with a substrate, and the seedling tray floats on the surface of the nutrient solution in the seedling pond to complete the entire seedling raising process. The principle is to use the substrate instead of the soil to fix the root system of the tobacco seedlings, get rid of soil constraints and soil-borne diseases, and penetrate the nutrient solution into the substrate through capillary action to provide all the nutrients and water needed for the growth of the tobacco seedlings. Floating seedling cultivation technology is a large-scale and industrializ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/02A01G31/00A01G7/04
CPCA01G7/045A01G31/00A01G31/02Y02P60/21
Inventor 邓乐乐向海英宋春满张涛曾婉俐蒋佳芮许力张建铎杨文武赵剑涛李雪梅杨光宇张承明
Owner CHINA TOBACCO YUNNAN IND
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