Cold region paddy rice seedling dry nursery method

A technique for growing seedlings and rice in dry conditions, applied in rice cultivation, botany equipment and methods, horticulture, etc., can solve the problems of low seedling survival rate, high seedling raising cost, and long seedling raising cycle, and achieve low incidence of bakanae disease, rice The effect of strong root system and increased germination rate

Inactive Publication Date: 2016-10-12
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of low seedling survival rate of traditional rice seedling raising technology, long seedling raising cycle, great influence of low temperature climate conditions, easy disease, high seedling raising cost, and provide a method for dry rice seedling raising in cold regions

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0021] Specific implementation mode one: the method for raising seedlings of rice in cold regions in this embodiment is completed according to the following steps:

[0022] 1. On sunny days, put the seeds on the tarpaulin, spread them evenly to a thickness of 3-5cm, use wooden utensils to turn them every 2-3 hours, and dry the seeds for 2-3 days to obtain the sun-dried seeds;

[0023] 2. The preparation concentration is 1.15~1.17g / cm 3 Pour the sun-dried seeds into salt water to soak and stir evenly. The soaking time is 0.5-1 hour. Remove empty grains, impurities and germs, rinse the seeds with clean water for 2-4 times, and spread them in a cool place. Dry in the shade for 2-3 days to get the treated seeds;

[0024] 3. Coat the treated seeds in step 2 with Fludioxonil, dry and store in the shade for 3 days after coating, soak the seeds after the seed coating agent film is solidified, and obtain the seeds coated with the seed coating agent;

[0025] 4. Put the seeds coated w...

specific Embodiment approach 2

[0039] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: if the seed soaking water temperature is 15°C in the seed soaking process described in step 4, then soak the seeds for 6-7d, if the soaking water temperature is 25°C, then soak the seeds for 3-4d . Others are the same as in the first embodiment.

specific Embodiment approach 3

[0040] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the content of acidic organic matter in the peat soil described in Step 5 is not less than 20%. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for raising seedlings of rice in cold regions by dry weather, and the invention relates to a method for raising seedlings of rice in cold regions by drought. The present invention will solve the technical problems that the traditional rice seedling raising technology has low seedling survival rate, long seedling raising cycle, great influence of low temperature climate conditions, easy disease, and high seedling raising cost. The cold region rice seedling raising method of the present invention comprises the following steps: 1. Seed; 2. Seed selection in salt water; 3. Seed coating; 4. Soaking seeds; The seedlings of the present invention can grow to 2 leaves and 1 core 2 weeks after sowing, and the seedlings can grow to 4 to 4.5 leaves before transplanting in the same seedling raising time in spring in cold regions, and the seedling rate is over 98%. The disease rate of rice seedlings cultivated by the invention is zero. The invention is applied to the technical field of seed cultivation of agricultural rice.

Description

technical field [0001] The invention relates to a method for raising seedlings of rice in cold regions. Background technique [0002] The technology of dry seedling cultivation of rice has been introduced from Japan to China for nearly 30 years since the early 1980s, and it is currently spread all over the rice-growing areas of the country. As the saying goes, "Have a good half-year rice", especially in the cold area rice-growing areas, dry-raising technology is the main means of high-yielding rice. However, there are still many problems in the process of dry seedling raising in cold areas, which seriously affect the quality of seedlings and later yield. Due to the different levels of seedling raising techniques of farmers, the planting costs, yields and rice quality vary greatly. There are many low temperature and strong winds in spring in the north, and the strong wind is very destructive to the rice seedling greenhouses, and the phenomenon of shed opening often occurs, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G22/22
CPCA01G22/22
Inventor 严君韩晓增邹文秀
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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