CN113785766A

CN113785766A - Soilless culture device and greenhouse

Info

Publication number: CN113785766A
Application number: CN202111116906.6A
Authority: CN
Inventors: 杨东海; 刘宝平; 王超; 肖哲运
Original assignee: Beijing Gengzhi Agricultural Technology Co ltd
Current assignee: Beijing Gengzhi Agricultural Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-14

Abstract

The invention provides a soilless culture device, which comprises a supporting device for a plant root system, wherein an adjusting device for adjusting the temperature and the oxygen content is arranged at the lower part of the supporting device. Through the adjusting device, human intervention is carried out on the root system which is the final part of the growth of the plant, and important parameters such as temperature and carbon dioxide concentration are controlled to obtain the plant with the maximum yield and the fastest growth frequency. Still relate to a warmhouse booth.

Description

Soilless culture device and greenhouse

Technical Field

The embodiment of the invention relates to the technical field of agricultural soilless culture, in particular to a soilless culture device, and further particularly relates to a greenhouse.

Background

The greenhouse is an important technology which breaks through the season limitation, realizes that vegetables and fruits can grow in different time and regions and provides rich choices for the public. The plumpness and frequency of the growth of a plurality of plant fruits are directions of attention of those skilled in the art, how to conform to the growth rule of plants, and a planting method and a device with high quality and high yield are urgently needed to be researched when the plants are drip-irrigated, such as strawberries and the like.

Disclosure of Invention

The invention provides a soilless culture device, which comprises a supporting device for a plant root system, wherein an adjusting device for adjusting the temperature and the oxygen content is arranged at the lower part of the supporting device. Through the adjusting device, human intervention is carried out on the root system which is the final part of the growth of the plant, and important parameters such as temperature and oxygen concentration are controlled, so that the plant with the maximum yield and the fastest growth frequency is obtained.

Preferably, the conditioning device comprises a conditioning space allowing air circulation provided at a lower portion of the supporting device.

Preferably, the conditioned space comprises an air inlet provided with blowing means and an air outlet allowing the exit of air.

Preferably, the regulating means comprises temperature monitoring means.

Preferably, the regulating means comprises carbon dioxide concentration monitoring means.

Preferably, a fixing means for fixing the plant body part is provided at an upper portion of the supporting means.

More preferably, the support device further comprises a cultivation tank, a substrate layer arranged in the cultivation tank and a nutrient solution supply device.

Preferably, black and white films are paved on the cultivation grooves.

The invention also relates to a greenhouse comprising the soilless culture device, which is characterized in that the supporting device is gradually inclined along the direction of the greenhouse.

Preferably, the plant is strawberry.

Description of the drawings:

FIG. 1 is a schematic cross-sectional structure of a suspension type strawberry soilless culture design

FIG. 2 is a schematic view of the longitudinal section structure of the suspended strawberry soilless culture design

FIG. 3 is a schematic view of a connector structure of a suspension device for soilless culture of suspended strawberries

FIG. 4 is a schematic view of a suspension type soilless culture design cultivation trough for strawberries

FIG. 5 is a schematic view of the cross-sectional structure of a cultivation trough designed for suspended strawberry soilless culture

FIG. 6 is a schematic structural diagram of a nutrient solution system designed for suspended soilless culture of strawberries

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

The invention provides a soilless culture device, and fig. 1-2 show a schematic cross-sectional structure of a suspended type strawberry soilless culture design and a schematic longitudinal cross-sectional structure of the suspended type strawberry soilless culture design according to an embodiment of the invention. As shown in fig. 1, the suspension type strawberry soilless culture design comprises suspension devices 1, wherein the upper ends of the suspension devices 1 are connected with greenhouse beams (not shown in the figure), and the adjacent suspension devices are spaced by 1 meter; the lower end of the suspension device 1 is connected with the cultivation groove 2, the cultivation groove 2 is vertically suspended on a beam of the greenhouse through the suspension device 1, and adjacent cultivation grooves are spaced by 0.8 meter. As shown in fig. 2, a substrate layer with a height of 0.15 m for fixing the growth of the strawberries and a microclimate adjusting control layer with a height of 0.08 m for adjusting microclimate of root systems of the strawberries through liquid drainage, ventilation and air exchange are arranged in the cultivation tank 2, and the lengths of the substrate layer and the microclimate adjusting control layer can be determined at will according to the length of the greenhouse.

Fig. 3 shows a schematic view of a suspension device of a suspended strawberry soilless culture design according to an embodiment of the invention. The suspension device 1 comprises a connecting rod 11, a turnbuckle 12 and a suspension part 13. The upper end of the connecting rod 11 is connected with a greenhouse beam, the lower end of the connecting rod 11 is provided with threads, and the threads can be connected with the upper end of the turnbuckle 12; the upper end of the hanging piece 13 is provided with a thread which can be connected with the lower end of the turnbuckle 12, the hanging piece 13 at the lower end of the hanging piece 13 is in an inverted Y-shaped structure, and the tail end of the hanging piece is bent into a hook shape and is used for connecting with a hanging cultivation groove; the turnbuckle 12 is a screw sleeve and is a connecting piece with internal threads corresponding to the lower end thread of the connecting rod 11 and the upper end thread of the hanging piece 13, and the turnbuckle 12 is rotated to adjust the height of the hanging piece 13, so that the height of the cultivation groove is adjusted, and the nutrient solution can smoothly flow back.

Fig. 4 and 5 show a schematic structural diagram and a schematic cross-sectional structural diagram of a suspension type strawberry soilless culture design cultivation groove. A drip irrigation pipe 21 is transversely arranged above the cultivation tank 2 and is used for drip irrigation of nutrient solution and other relevant working solutions. The cultivation tank 2 is provided with two bearing steel pipes 22, and the bearing steel pipes 22 are all 4-minute steel pipes and are main bearing carriers of the cultivation tank 2. The bearing steel pipe 22 is evenly provided with the C-shaped pipe clamps 23, the U-shaped groove-shaped black and white film 27 and the U-shaped insect-proof net 28 can be fixed by the C-shaped pipe clamps 23, the U-shaped groove-shaped black and white film 27 is a high-density black and white film, and compared with a traditional cultivation groove, cost is successfully reduced by more than seventy percent. U-shaped fly net 28 is inside to load space 29 for growth substrate, loads growth substrate, and fixed strawberry root system is grown, U-shaped fly net 28 chooses 60 meshes fly net for use and places in U-shaped groove black and white membrane 27, can prevent effectively that the small size worm from getting into the matrix layer, the U-shaped fly net slightly is less than U-shaped groove black and white membrane 27, below spatial region is microclimate control layer 210.

An air inlet 24 is formed in one side of the microclimate control layer 210, an air outlet 25 is formed in the other side of the microclimate control layer 210, an air circulation facility (not shown in the figure) and a heating facility (not shown in the figure) are connected to the outside, the air circulation facility further comprises a carbon dioxide concentration detection device, when the carbon dioxide concentration detection device detects that the concentration of carbon dioxide in the microclimate control layer 210 exceeds 800PPM, the air circulation facility is started, oxygen enters the microclimate control layer 210 through the air inlet 24 to supplement the oxygen, and when the carbon dioxide concentration detection device detects that the concentration of carbon dioxide in the microclimate control layer 210 is lower than 400PPM, the air circulation facility is closed; the heating facility further comprises a temperature monitoring device, and when the temperature monitoring device displays that the temperature of the microclimate control layer 210 is lower than 10 ℃, the heating facility is opened, the temperature of the root system is increased to 18 ℃, and the heating facility is closed. When the temperature monitoring device displays that the temperature of the microclimate control layer 210 exceeds 25 ℃, starting a drip irrigation device to cool the matrix; this embodiment cooperation is used the facility that heats reaches drip irrigation the device, can realize fast that the root system environment goes up and down the replenishment of gentle root system oxygen, guarantee that the root system is in best growth state all the time.

The lower end of the exhaust port 25 is provided with a working fluid outlet 26, and the excess unabsorbed nutrient solution flows out from the substrate filling space 29 to the lower microclimate control layer 210 and is discharged through the working fluid outlet 26. It should be noted that the bottom ends of the U-shaped groove-shaped black and white film 27 and the U-shaped insect-proof net 28 are both arranged in a V shape, which is convenient for the working solution to flow out and collect.

Fig. 6 shows a schematic structural diagram of a nutrient solution system of a suspension type strawberry soilless culture designed culture groove. The nutrient solution system 3 comprises a main liquid supply pipe 31, a capillary liquid supply pipe 32, a liquid return pipe 33, a liquid return disinfection device 34, a working solution pool 35 and an environment regulation and control device 36. The surplus unabsorbed nutrient solution is recycled to the liquid return disinfection device 34 through the liquid return pipe 33, and the nutrient solution is precipitated and disinfected to ensure that the surplus nutrient solution does not contain other impurities and other pollution bacteria, and the surplus nutrient solution which enters the precipitation disinfection is stored in the working solution tank 35 and flows to the liquid supply capillary 32 through the liquid supply main pipe 31 after being regulated and controlled by the environment regulation and control device 36. The environment regulating device is used for regulating and controlling the pH value and the nutrient components of the nutrient solution. The nutrient solution system 3 further includes an irrigation device (not shown), which may be a drip irrigation device or a specially designed device for nutrient solution irrigation, in this embodiment, the irrigation device is a drip irrigation device currently used by plants, and the end of the liquid supply capillary 32 is connected to a drip irrigation pipe for irrigation and nutrient solution delivery.

The invention is not limited to the exemplary embodiments given above, and variations and combinations of the embodiments based on the disclosed concept will occur to those skilled in the art and are within the scope of the appended claims.

Claims

1. The soilless culture device comprises a supporting device for a plant root system, and is characterized in that an adjusting device for adjusting the temperature and the oxygen content is arranged on the lower portion of the supporting device.

2. A soilless culture device according to claim 1 wherein the adjustment means includes an air-circulation permitting adjustment space provided at a lower portion of the support means.

3. A soilless culture device according to claim 2 wherein the conditioned space includes an air inlet provided with air blowing means and an air outlet allowing air to escape.

4. A soilless culture device according to claim 3 wherein the adjustment means includes temperature monitoring means.

5. A soilless culture device according to claim 3 wherein the adjustment means includes carbon dioxide concentration monitoring means.

6. A soilless culture device according to claim 5 wherein the support means is provided with fixing means for fixing the main part of the plant at an upper portion thereof.

7. A soilless culture device according to claim 6 wherein the support means further includes a culture trough, a substrate layer and a microclimate adjusting layer disposed in the culture trough.

8. A soilless culture device according to claim 7 wherein the culture trough is paved with black and white film.

9. A greenhouse comprising a soilless culture device according to any one of claims 1 to 6, wherein the support means is gradually inclined in the direction of the greenhouse.

10. The greenhouse of claim 8, wherein the plant is strawberry.