Root limiting cultivation method with films embedded in furrows between ridges for greenhouse vegetables

Abstract

The invention relates to a root limiting cultivation method with films embedded in furrows between ridges for greenhouse vegetables. The method includes the following steps: 1) ridging and furrowing in the north-south direction in the field soil to form a ridge and ditch alternated soil structure; 2) installing flexible films or cultivation containers for root limiting cultivation in the furrows,filling the flexible films or cultivation containers with a culture medium; 3) planting vegetables in the cultivation medium to achieve soil cultivation or soilless cultivation of vegetables. In the cultivation process, the ridge shields and absorbs sunlight radiation, thus the temperature of the culture medium in the furrows is reduced and the ability of maintaining a low temperature of the culture medium is enhanced. In the step 2), the flexible films are pasted to the inner walls of the soil troughs and then filled with the cultivation medium, or rigid containers are used as the cultivationcontainers and then filled with the cultivation medium. The method can realize root limiting cultivation of greenhouse vegetables, reduce the temperature in the root zone, increase the utilization rate of water and fertilizer, and block the leaching of nutrients to the groundwater.

Description

technical field [0001] The invention belongs to the technical field of facility vegetable cultivation, and in particular relates to a root-restricting cultivation method for facility vegetables embedded in grooves between soil ridges. Background technique [0002] The production of facility plants (vegetables, flowers, etc.) is a way of producing off-season vegetables in winter and spring in solar greenhouses, plastic greenhouses, multi-span greenhouses and other facilities. Indispensable technical means. Taking protected vegetables as an example, the cultivated area of ​​protected vegetables in my country has reached nearly 4.2 million hectares, most of which adopt soil cultivation as the main method, and are carried out in solar greenhouses and plastic greenhouses, while soilless cultivation only accounts for a very small proportion, and is mainly concentrated in the company. Greenhouse vegetable production in progress. Compared with open-field cultivation, due to the sim...

AI Technical Summary

Problems solved by technology

Root-limited cultivation of protected vegetables is a potential effective method to solve the problems of low water and fertilizer utilization rate, large soil cultivation disturbance, and nutrient environmental pollution in summer production of traditional protected vegetables.

However, how to further reduce the root zone temperature and maintain the water and fertilizer in the root zone of vegetables in summer is a technical difficulty that needs to be broken through. The technology of root-limited cultivation of vegetables in environment-friendly high-temperature-resistant facilities in summer is still blank.

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