Sprout cultivation method and equipment for rice seedling plugged in by machine

Abstract

The invention discloses a sprout cultivation method and device of machine-plugging rice seed, which comprises the following parts: sprout cultivation bed with frame structure, substrate, covering film and micro-hole permeating film. the sprout cultivation method comprises the following steps: 1. paving substrate; 2. paving soil on the sprout cultivation bed; strickling the surface; 3. irrigating to make bottom soil reach saturated condition; 4. weighing seed; sowing evenly; 5. covering sowing soil evenly; 6. covering film to conserve soil moisture; 7. managing seed bed; 8. cutting block to obtain the plant for plugging.

Description

technical field [0001] The invention relates to rice seedling raising technology, in particular to a seedling raising method and device for machine-transplanted rice seedlings. Background technique [0002] Machine-transplanted rice seedling raising is a key link in the high-yield cultivation technology system of machine-transplanted rice. Compared with conventional seedling raising methods, machine-transplanted rice seedling raising is characterized by high seeding density and high standardization requirements. The used rice shoots of machine transplanting are seedlings, generally require seedling age 15-20 days (not more than 30 days), seedling height 12-17 centimeters (not more than 20 centimeters). At present, the commonly used machine-transplanted seedling raising methods in production include floppy disk seedling raising, double-membrane seedling raising and industrial seedling raising. Floppy disk seedling raising and double-membrane seedling raising are simplified an...

AI Technical Summary

Problems solved by technology

However, due to the poor water and fertilizer permeability of plastic floppy disks and plastic films, the growth of rice seedlings is inhibited. Generally, the seedling racks are too high when the seedling age exceeds 30 days, which is no longer suitable for transplanting by rice transplanters. It is impossible to plant all the seedlings in a short period of time, and the rest have to be planted manually, which loses the original meaning of machine planting

Moreover, if the seedling age exceeds 30 days, the environment between the groups will deteriorate, the root system will not be able to pierce down, the ability to absorb water and fertilizer will be poor, and the phenomenon of fertilizer shortage, root failure, and yellowing will appear at the beginning of growth, especially for floppy seedlings where the roots can be pricked down. And the seedlings that cannot be tied down are stratified due to growth reasons, which exacerbates the weakening of weak seedlings and causes dead seedlings

[0003] At present, the research and development of rice transplanting machinery has been completed, and the technology is mature. However, due to the restriction of seedling age in the southern multi-ripening rice areas, mechanized rice transplanting cannot be widely promoted. Only by prolonging the age of seedlings can it be matched with transplanting machinery to realize mechanized transplanting in the multi-ripening rice areas in the south

Although a lot of manpower and material resources have been invested in various places to carry out scientific and technological research on this, the progress has been slow and no substantial progress has been made so far, which has become a bottleneck in the promotion of mechanized rice transplanting

[0004] In addition, using the existing machine-transplanted seedling raising device and method, the seeding rate is relatively large, and the seeding rate of general hybrid rice is 600-750g / m 2 , the sowing rate of conventional japonica rice is 800-950g / m 2 , due to the high price of seeds, it is very uneconomical, and the income of farmers is less

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