Three-dimensional aerial fog seedling method for flue-cured tobacco

Abstract

The invention relates to a three-dimensional aerial fog seedling method for flue-cured tobacco, and belongs to the technical field of seedling of flue-cured tobacco. The seedling method comprises the following steps: (1) making a cultivation pond; (2) making a seedling bracket; (3) making a cultivation plate; (4) sowing; (5) making a liquid storing pond; (6) preparing a nutrient solution; (7) arranging an automation circulating system; (8) managing a seedbed. According to the seedling method, the temperature and the moisture can be controlled easily, high automatic control rate is realized, water can be saved, the fertilizer water utilization ratio is increased, and the cost can be effectively reduced when the method is popularized to drought regions; high absorption ability of nutrient is realized, and tobacco seedlings grow rapidly and robustly; a supplementary lighting measure is not needed, so that the seedling cost is reduced in comparison to multilayer seedling. A three-dimensional aerial fog seedling facility is suitable for planting crops such as vegetables and flowers, the comprehensive utilization ratio of a seedling greenhouse is increased greatly, and the income is increased effectively.

Description

technical field [0001] The invention relates to a three-dimensional aerosol seedling raising method for flue-cured tobacco, belonging to the technical field of flue-cured tobacco seedling raising. Background technique [0002] At present, my country’s flue-cured tobacco seedlings mainly include floating seedlings, tray seedlings, wet seedlings, and sand seedlings. Among them, floating seedlings and tray seedlings are widely used, and floating seedlings account for about 85%, especially in Guizhou and Yunnan. widely used in the area. Floating seedlings mainly use seedling trays made of polystyrene foam. Make seedling ponds in the nursery shed. After filling the seedling trays with special seedling substrates, sow and cover them, then put the seedling trays into the seedling ponds. The depth of the seedling ponds is 5-10cm , using special seedling fertilizer. Through the temperature and humidity control of the greenhouse, water fee management, seedling thinning, leaf cutting,...

AI Technical Summary

Problems solved by technology

1. The temperature and humidity are not easy to control. In Guizhou, Hunan and other tobacco areas, the early temperature is often low, the growth of tobacco seedlings is slow, and even freezing damage occurs; 2. The disease is not easy to control, and there are many manual operations for floating seedlings, and the automation control rate is low. , the disinfection measures are difficult to implement in place; 3. A large amount of water and nutrient solution are needed in the floating seedling nutrient pool, the waste of water resources is large, and the fertilizer utilization rate is low; 4. The root system of floating seedling grows in the nutrient solution for a long time, and the root system is underdeveloped. There are many invalid roots; 5. Floating seedlings are mainly raised on the ground, and the three-dimensional seedling model is not yet mature, and the efficiency of seedlings per unit area is not high

[0004] Three-dimensional seedling methods such as multi-layer seedling cultivation and rotary seedling cultivation have increased the number of seedlings per unit area to a certain extent, which meets the objective requirements of the development of modern tobacco agriculture, but there are still the following deficiencies: 1. Multi-layer seedling cultivation requires a large increase in supplementary light measures , high power consumption and increased cost; 2. Rotary seedlings need manual operation, and there is no systematic control facility application; 3. Multi-layer seedlings and rotary seedlings mainly adopt floating seedlings, and the above-mentioned problems of floating seedlings still exist; 4. Multi-layer seedlings. Layer seedling cultivation and rotary seedling cultivation have not been organically combined with the comprehensive utilization of greenhouses, resulting in low resource utilization

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