High-efficiency management technology for NFT cultivation nutrient solution of leaf vegetables

Abstract

The invention disclosed a high-efficiency management technology for a NFT cultivation nutrient solution of leaf vegetables, and belongs to the technical field of crop cultivation. The technology is suitable for green and standardized production of the leaf vegetables. According to the technology disclosed by the invention, a hot and cold water circulation temperature control technology is adopted,a temperature, flow rate and flow velocity of hot and cold water are set, so that a temperature of the nutrient solution is kept within a suitable temperature range of a crop root zone, adjustment and control of the temperature of the nutrient solution can be realized on the basis of reduction of energy consumption, potential productivity of crop varieties can be fully exerted, and economic benefits of water culture in facilities can be improved; and in addition, a nutrient solution modular management technology is applied, so that different nutrient solutions can be selected according to different vegetable varieties, diversity of cultivation varieties can be improved, planning of production is facilitated, and diffusion of pathogenic bacteria can be effectively prevented.

Description

1. Technical field [0001] The high-efficiency management technology of nutrient solution for leaf vegetable NFT cultivation of the present invention belongs to the technical field of crop cultivation, and relates to a nutrient solution temperature control system and a nutrient solution modular management system. 2. Technical Background [0002] Leafy vegetables have become the vegetable crops with the largest hydroponic area in my country due to their advantages such as weak light demand, short growth cycle and high economic benefits. In hydroponics, the temperature of nutrient solution is a very important environmental factor that affects the absorption of nutrients by plant roots, and has a significant impact on plant water metabolism, mineral absorption, hormone metabolism, growth and development, and photosynthesis. Keeping the temperature of the nutrient solution within the suitable temperature range of the root zone of the plant plays a very important role in realizing...

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Problems solved by technology

[0006] The present invention provides a set of high-efficiency management of leaf vegetable NFT cultivation nutrient solution in view of the current situation that the management efficiency of the leaf vegetable hydroponic nutrient solution is low, the energy consumption is large and the operation cost is high, which restricts the annual continuous high-quality and high-efficiency production of the leaf vegetable. technology

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