Tobacco floating-seedling strong seedling cultivation system

Abstract

The invention relates to a tobacco floating-seedling strong seedling cultivation system. The system comprises a greenhouse part, a warming part and a greenhouse comprehensive management part, wherein the greenhouse part comprises a greenhouse body, a three-dimensional seedling frame and a warming nutrient tank module (1) which are located in the greenhouse body; the warming part is mainly composed of a hot water heating device (8), a heat-preservation water tank (9), a booster pump (10), a water separator (11), a water return box (12) and a circulating pump (13) which are connected by a pipe; the greenhouse comprehensive management part comprises a greenhouse comprehensive management room (22), a temperature sensor, a photoelectric sensor, a water-level detector (23) and a control terminal. The system provided by the invention uses the means such as warming and supplementing light to regulate factors including temperature, humidity, illumination and the like required by growth environment of the tobacco through the whole automatic control during the growing of tobacco seedlings, and creates a growth environment which is suitable for healthy and strong growth of the tobacco seedlings.

Description

technical field [0001] The invention relates to a specialized tobacco seedling raising device; in particular, it relates to a system for cultivating tobacco floating seedlings and strong seedlings. Background technique [0002] Tobacco floating nursery work is carried out every year from December of the first year to February of the next year. There is about a 3-month seedling period. During this period, the temperature in the south is generally between 0 and 15°C, and there are often Extreme temperatures around -5°C appear. The optimum temperature for the growth of tobacco seedlings is 22°C-28°C, but in a natural environment or in a general greenhouse, the temperature, humidity and light intensity required for the growth of tobacco seedlings during this period cannot be controlled. Therefore, tobacco seedlings can not normally emerge and grow, and the cultivation rate of high-stem strong seedlings is low, and strong seedlings cannot be bred in the normal seedling period fo...

AI Technical Summary

Problems solved by technology

The suitable temperature for the growth of tobacco seedlings is 22°C-28°C, but in the natural environment or in a general greenhouse, the factors such as temperature, humidity and light intensity required for the growth of tobacco seedlings during this period cannot be controlled.

Therefore, tobacco seedlings can not normally emerge and grow, and the cultivation rate of high-stem strong seedlings is low, and strong seedlings cannot be bred in the normal seedling period for transplanting, which often causes the seedling age to be too long, and the tobacco seedlings are thin and weak, and the transplanting period is delayed. After being planted in the field, it is difficult for the tobacco seedlings to grow early and quickly, which affects the quality and style of the tobacco leaves

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