Efficient germination accelerating and seedling raising method for rice seeds

Abstract

The invention provides an efficient germination accelerating and seedling raising method for rice seeds. The efficient germination accelerating and seedling raising method includes: (1) soaking the rice seeds in a seed soaking agent at a constant temperature of 28-30 DEG C, performing ultrasonic treatment, and performing low-temperature treatment at a constant temperature of 10-15 DEG C, wherein the seed soaking agent comprises 1-3 parts of seaweed essence, 1-2 parts of compound sodium nitrophenolate, 0.3-0.8 part of brassinolide, 0.5-1.0 part of plant extract, 0.3-0.8 part of uniconazole and300-500 parts of water; accelerating germination at 25-30 DEG C for 6-8 hours, and air-drying buds at a natural temperature; (2) spreading the buds on a medium of a seedbed, covering the buds with a 0.8 to 1.3cm-thick mixture of the medium and fine sand, and covering with a plastic film; (3) performing seedling raising management; and (4) transplanting seedlings. The efficient germination accelerating and seedling raising method has the advantages of high efficiency, high low-temperature resistance, high germination rate and high seedling emergency rate.

Description

technical field [0001] The invention relates to the technical field of rice seedling cultivation, in particular to a method for efficient germination acceleration and seedling cultivation of rice seeds. Background technique [0002] Hybrid rice seeds are the most basic and important raw materials for farmers to grow rice. The rice germination and seedling raising technology is the key point in the rice planting process, which directly determines the growth quality of rice seedlings after transplanting. For rice seed soaking and accelerating germination technology, the time and method of soaking seeds are the key to improving the germination rate of rice. However, in the process of rice soaking and accelerating germination, it is often easy to cause uneven germination due to excessive soaking time of rice seeds and external release of nutrients. In addition, under the influence of low temperature climate, the low temperature stress of rice seeds is enhanced, resulting in the...

AI Technical Summary

Problems solved by technology

For rice seed soaking and accelerating germination technology, the time and method of soaking seeds are the key to improving the germination rate of rice. However, in the process of rice soaking and accelerating germination, it is often easy to cause uneven germination due to excessive soaking time of rice seeds and external release of nutrients. In addition, under the influence of low temperature climate, the low temperature stress of rice seeds is enhanced, resulting in the germination rate, germination potential and germination quality of rice seeds in the process of accelerating germination.

In addition, in the process of raising seedlings, the quality of seedlings is greatly reduced due to the mismatch of factors such as seedling raising substrate selection, seedling raising time, water and fertilizer management, resulting in low emergence and seedling growth rates, which ultimately affect the transplanting effect of rice seedlings.