Method of regulating temperature of rhizosphere environment of strawberries in sunlight greenhouse and facility

Abstract

A method of regulating the temperature of the rhizosphere environment of strawberries in a sunlight greenhouse is characterized in that pipeline branch pipes are directly distributed on culture substrate of overhead strawberry cultivation tanks, and each pipeline branch pipe is 5-8cm away from each strawberry plant; in winter, an ordinary pressure hot-water boiler is filled with water in advance, the water is heated to reach the temperature of 55-60 DEG C, a water pump is switched on, water currents flow through the pipeline branch pipes distributed on the culture substrate and directly heat the rhizosphere environment of the strawberries, the water returns to the ordinary pressure hot-water boiler, and the temperature of the rhizosphere environment of the strawberries is maintained in the range from 15 DEG C to 20 DEG C through continuous circulation of the process; in summer, tap water with the temperature ranging from 20 DEG C to 23 DEG C is adopted and does not need to be heated, the water pump is switched on directly, the tap water flows through the pipeline branch pipes distributed on the culture substrate and directly decrease the temperature of the rhizosphere environment of the strawberries, the tap water returns to the ordinary pressure hot-water boiler, and the temperature of the rhizosphere environment of the strawberries is maintained in the range from 23 DEG C to 25 DEG C through continuous circulation of the process. As the mode of directly increasing or decreasing the temperature of the rhizosphere environment of the strawberries is adopted, the method is beneficial to control of plant diseases and insect pests, beneficial to the strawberries to accumulate photosynthetic products, beneficial to improvement of root activity, good in temperature regulating effect, rapid in efficiency, low in equipment cost, low in operation and maintenance cost, and meanwhile obvious in energy-saving and water-saving effect.

Description

technical field [0001] The invention belongs to the field of facility environment management, in particular to a method and facility for arranging pipelines on elevated cultivation tanks for bidirectionally regulating the ambient temperature of strawberry root circles in solar greenhouses in winter and summer. technical background [0002] Strawberry belongs to Rosaceae and is a perennial herbaceous plant. Because of its high economic value and wide adaptability, it is suitable for annual production of facility agriculture. At the same time, because strawberry is a shallow-rooted plant, the root system is more sensitive to the requirements of environmental conditions, especially the requirements of temperature, which shows that it is neither resistant to high temperature nor low temperature. The critical temperature for the growth of strawberry root system is 2-5°C, at -8°C it will be damaged by freezing, and at -12°C it will freeze to death. The optimum temperature for roo...

AI Technical Summary

Problems solved by technology

If the traditional wet curtain-fan circulation cooling method is used to adjust the ambient temperature of the solar greenhouse, the effect of reducing the temperature can be achieved, but at the same time, the air humidity in the solar greenhouse will increase rapidly, which is not conducive to the photosynthesis of strawberry plants. Very prone to pests and diseases

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