Greenhouse substrate rice seedling raising method

Abstract

The present invention relates to a greenhouse substrate rice seedling raising method. The greenhouse substrate rice seedling raising method comprises greenhouse construction, substrate preparation, seed treatment, sowing, plate placement, seedling management and seedling lifting. A support-free steel frame combined greenhouse is used and a hanging micro-spray system is arranged in the greenhouse;a high-quality organic rice seedling raising substrate with fluffy texture, rich microbial content, good acid-base buffer performance, rich organic matter and appropriate amounts of N, P, K and mediumtrace elements is chosen; and substrate plate placement, water spraying, sowing and substrate covering are conducted on a seeder assembly line. The greenhouse substrate rice seedling raising method solves a problem of connection between seedling raising and mechanical transplanting, bred seedling blocks match requirements of a rice transplanter for the seedling blocks, so that the mechanical transplanting can be promoted in a large area; the whole process of mechanical seedling raising is labor-saving, time-saving, high-efficiency, low-cost, etc.; and the cultivated seedlings are uniform andtidy, strong, good in root system development and coiling, free of incomplete coiling, light in weight, easy to transport, and rapid in a slow seedling growing period after transplanting.

Description

technical field [0001] The invention relates to a rice seedling raising technology, in particular to a rice seedling raising method in a greenhouse. Background technique [0002] The traditional method of rice seedling raising (mechanical transplanting) is nutrient soil raising, which not only consumes a lot of manpower and material resources, but also with the expansion of the area of ​​machine transplanting promotion year by year, the problem of shortage of nutrient soil resources has become increasingly prominent, even facing the prospect of no soil. embarrassing situation. Therefore, in recent years, the replacement of nutrient soil with seedling substrates has been widely promoted, and there are also relevant literature reports, such as: [0003] CN 201610783124.0 discloses a method for raising seedlings in a rice substrate, comprising preparing a substrate, laying the substrate on a seedbed and spraying the substrate with a nutrient solution, evenly spreading rice see...

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Problems solved by technology

The method solves the problem of damage to cultivated land, damage to the environment, and lack of soil resources caused by long-term soil extraction caused by rice seedling raising, semi-water seedling raising, and dry seedling raising using soil as a seedling carrier and self-assembled seedling raising substrates containing a large amount of soil. Seeds, insect eggs, germs, etc. During the growth period of the seedlings, chemical weeding, insecticide, and sterilization are required. Careless operation will cause the growth of the seedlings to be hindered, affect the quality of the seedlings, and even cause the death of the seedlings; There is a lack of water in rice seedling raising in the area, and it is difficult to adopt water seedling and semi-water seedling raising technical problems; it overcomes the disadvantages of high temperature burnt seedlings and excessive growth caused by the difficulty in regulating the temperature of dry seedling seedling; The block matches the requirements of the rice transplanter for the seedling block, which can promote the machine transplanting in a large area; the whole process of mechanized seedling raising has the advantages of labor saving, time saving, high efficiency, and low cost; the cultivated seedlings are uniform, strong, Well-developed root system, no remnant discs (residual discs cannot be used during machine transplanting, but can only be discarded), light in weight, easy to transport, slow seedlings after transplanting and fast

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