Tobacco naked seed sowing device

Abstract

The invention discloses a bare tobacco seed sower. The front end of the cylinder body is in the shape of an arc cone and is provided with a circular hole (9) with a diameter of 1.6mm-1.7mm. The push needle (6) is arranged on the cylinder. In the body, the front end of the push needle (6) is inserted into the circular small hole (9), and the push needle (6) is provided with a diameter of 0.9 mm-0.8 cm away from the front end. 1.1 mm small hole (8), the rear end of the cylinder is equipped with a cover plate, the rear end of the push needle (6) passes through the cover plate and is provided with a pressing plate, in the A spring (4) is installed between the cover plate and the pressing plate, and a limiter (7) is installed on the push pin on the other side of the cover plate. When the pressing plate is pressed, the The seed loading hole (8) at the front end of the push needle (6) can extend out of the circular hole (9) at the front end of the cylinder; a switch door (1) is provided on the cylinder. The invention relates to a naked tobacco seed planter which can precisely control the seeding quantity in the process of using the bare tobacco seeds to raise seedlings by floating.

Description

technical field [0001] The invention relates to a seeder, in particular to a bare tobacco seeder. Background technique [0002] At present, with the popularization of flue-cured tobacco floating seedling raising technology and the application of flue-cured tobacco seed pellet coating technology, seeding trays are used for precision sowing of coated seeds in the flue-cured tobacco seedling raising process, which greatly improves labor efficiency and reduces waste of tobacco seeds. . But as the bare seed of tobacco breeding material, because there are many varieties (lines) and intermediate materials, and the dosage is small each time, it is not suitable for large-scale pellet coating technology. Tobacco bare seeds have different shapes, such as oblong, oval, kidney, etc., generally 0.6-0.8 mm long, 0.4-0.55 mm wide, and 12000-14000 seeds per gram. Because the bare tobacco seeds are too small, in the work of floating seedlings with the bare tobacco seeds, in order to ensure ...

AI Technical Summary

Problems solved by technology

Due to the arbitrariness of the number of seeds picked manually, the sowing amount of each hole cannot be precisely controlled. On the one hand, it will cause extremely uneven seedling emergence and affect the growth of tobacco seedlings; on the other hand, it will also bring unnecessary trouble to the later thinning work. , causing waste of seeds

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