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Negative pressure adjusted and controlled close type cultivation system and operation method

A closed, negative pressure technology, applied in the field of closed cultivation system, can solve the problems of groundwater pollution, soil degradation, etc., and achieve the effect of improving utilization rate and pollution-free environment

Inactive Publication Date: 2007-09-19
刘明池
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the serious pollution of groundwater, soil degradation and other problems brought about by modern horticulture in the 20th century relying on a large amount of input of resources such as fertilizer and water to pursue high yield and high benefit of crops, and to provide a method that combines soil cultivation and soilless cultivation. Combining the advantages of the two, through micro-positive pressure irrigation and using negative pressure to automatically control the water content of the cultivation substrate, it is a closed cultivation system with a small amount of soil or substrate cultivation that is most suitable for plant growth.

Method used

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  • Negative pressure adjusted and controlled close type cultivation system and operation method
  • Negative pressure adjusted and controlled close type cultivation system and operation method

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Embodiment Construction

[0047] As shown in Figures 1 and 2, the closed cultivation system of negative pressure regulation provided by the present invention includes: a reservoir 1, a filter 2, a water delivery main pipe 3, a water level control device 4, a cultivation tank 5, and a seepage irrigation branch pipe 6. Root-separating film 7 and cultivation substrate 8;

[0048] The water delivery main pipe 3 is connected to the water outlet of the reservoir 1, and is sequentially connected to the inlet and outlet of the filter 2, the water level control device 4, and the seepage and irrigation branch pipe 6, and the reservoir 1, the filter 2 and the water level control device 4, the seepage irrigation The branch pipes 6 are connected to form a micro-positive pressure infiltration irrigation system with automatic regulation of water and nutrients;

[0049] Cultivation tank 5, the lower bottom surface in it and the surrounding walls around are provided with water-proof material layer to completely isolate...

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Abstract

A negative pressure controlled closed culture system is composed of water pool, water-delivery trunk, water level controller, culturing containers with impervious wall, osmotic irrigation system, root isolating films, culture medium filled in said culturing containers, and branch water tubes connected to said water-delivering trunk. Its advantage is saving water and fertilizer.

Description

technical field [0001] The invention provides a closed cultivation system (device) controlled by negative pressure, in particular a closed cultivation system controlled by negative pressure by using negative pressure to automatically control the moisture and nutrients of the cultivation substrate after micro-positive pressure irrigation. The invention also provides an operation method of the cultivation system. Background technique [0002] With the rapid development of my country's horticultural industry, agrochemicals such as fertilizers and pesticides have played a very important role. However, with the long-term continuous and large-scale use of agricultural chemicals, harmful substances gradually accumulate in the soil and water bodies, and some of them enter the crops and humans and animals through material circulation, seriously polluting agricultural products and the ecological environment, and endangering human health, especially greenhouses and other facilities. V...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G25/02
Inventor 刘明池
Owner 刘明池
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