Paddy rice seedling washing-free mature seedling soilless seedling raising method and device

Abstract

The invention discloses a paddy rice seedling washing-free mature seedling soilless seedling raising device and a paddy rice seedling washing-free mature seedling soilless seedling raising method. The device comprises a seedling raising box and a culture solution supplying system. More than one solution hole is formed in the bottom of the seedling raising box; and a baseboard of the seedling raising box is arranged on the bottom inside the seedling raising box. The culture solution supplying system comprises a catch box, a culture solution storage container, a solution outlet pump and a solution inlet pump. Culture solution exchange holes formed in the bottom of the catch box are communicated with the solution holes in the bottom of the seedling raising box through hoses. One end of the solution outlet pump is communicated with a water outlet on the bottom of the catch box, and the other end of the solution outlet pump is communicated with a water inlet on the upper end of the culture solution storage container. One end of the solution inlet pump is communicated with a water inlet on the bottom of the catch box, and the other end of the solution inlet pump is communicated with a water outlet on the bottom of the culture solution storage container. The seedling raising steps comprise a bud soaking preparation phase, a seedling raising phase and a seedling taking phase. By the method and the device, low-efficiency steps such as seedling washing and seedling bundling are eliminated. A seedling board is molded and meets the size requirement of a transplanter seedling tray.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a soilless seedling raising method and device for large rice seedlings without washing. Background technique [0002] Rice is the main food crop in my country, and its output and consumption both rank first in the world. The mechanization of rice production is of great significance. Machine-transplanted rice fields have good lodging resistance and strong resistance to natural disasters throughout the growth cycle. Regular planting in rows is conducive to rice receiving light, ventilation and increasing yield. It is also convenient for weeding and mechanized harvesting to reduce losses. Mechanized seedling raising is one of the key links in the mechanization of rice production. [0003] At present, the seedling raising methods suitable for machine transplanting include: washing seedlings for large seedlings, small seedlings with soil and medium seedlings with soil. Among them, seedlin...

AI Technical Summary

Problems solved by technology

However, due to the high root length and poor uniformity of the large seedlings, especially during the whole transplanting operation, the two processes of pulling seedlings and washing seedlings must be carried out, which seriously affected the production efficiency and the overall mechanization level.

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