Hydroponics is a new type of soilless plant culture. The core of hydroponics is to suspend plant roots and fix them in plant nutrient solution, so that plants can grow normally and complete their whole life cycle. Hydroponic nutrient solution is to use biological environment ecological symbiosis symbiotic mycorrhizal technology and principle by biological fermentation and chemical chelation, physical activation process of synthesis of a new type of hydroponic plant nutrient solution, has the effect of plant nutrition and water quality improvement, soil can be substituted to provide plant growth factors such as water, fertilizer, gas, heat, can satisfy the hydroponic conditions needed for plant growth. The following by Nantong Drake agricultural Technology Co., LTD. For you to introduce the plant nutrient solution temperature management.
The nutrient solution is in contact with the root system, so the temperature of the nutrient solution should be close to the appropriate temperature of root growth. Temperature discomfort will affect the absorption and metabolism of the root system and hinder plant growth and development. Generally speaking, the maximum liquid temperature should not exceed 28℃ and the minimum liquid temperature should not be less than 15℃. The optimum liquid temperature for most plants is 18-20℃. Soilless cultivation in winter is mainly a problem of low rhizosphere temperature. In hydroponics, plant roots are directly immersed in the nutrient solution, so the appropriate liquid temperature should be ensured. To improve the temperature of the nutrient solution, on the one hand, the cultivation bed is constructed with materials with good thermal insulation performance; on the other hand, a heating device is installed in the liquid storage tank to directly warm the nutrient solution. Electric heater and electric hot wire heating can be used as means to improve the temperature of nutrient solution, but it is better to use with the temperature controller. It is difficult to cool the nutrient solution in summer. The main method is to use underground liquid storage tank to conduct the heat of the nutrient solution to the underground. Therefore, the nutrient solution cycle times and cycle time should be increased.
