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Method for killing injurious insects by utilizing heat resistance of ultra-dry rice seeds

A technology for rice seeds and dry seeds is applied in the field of agronomic plant protection, which can solve the problems such as the decline and decline of the seed germination rate, and achieve the effects of low cost, simple technology and preventing moisture absorption.

Pending Publication Date: 2017-12-15
叶世青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some also use dried rice seeds to be killed by high temperature and dry heat. For example, put dry rice seeds into a breathable bag and put them in a constant temperature drying box, and set the temperature to 75°C for 24 hours. will decline, even severely

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for killing insects by utilizing the heat resistance of ultra-dry rice seeds, comprising the following steps in sequence

[0024] ① Seed material: Harvest 30kg of regular early rice seeds of Jianfu rice, dry the seeds with a moisture content of 12.5%, store the seeds for 2 months, and find that there are pests such as corn weevils.

[0025] ② Put the seeds upside down in 6 air-permeable mesh bags, put them in a constant temperature drying room, first bake them at 45°C for 6 hours, then set them at 65°C for 12 hours, and get ultra-dry seeds with moisture reduced to 5%.

[0026] ③ After super-drying the above-mentioned seeds, immediately set the constant temperature drying box at 80°C for 12 hours to kill the seed pests.

[0027] ④Take out the above-mentioned seeds that have killed the seed pests after cooling, immediately put the seeds into plastic bags, then seal the package, and store them in a ventilated and dry place for 8 months. When the early rice is sown...

Embodiment 2

[0029] A method for killing insects by utilizing the heat resistance of ultra-dry rice seeds, comprising the following steps in sequence:

[0030] ① Seed material: Purchase 10kg of late hybrid rice seeds of Xinliangyou 6380 from a seed shop. After testing, the moisture content of the seeds is 13.5%, there are pests such as wheat moths, and the germination rate of the seeds is 89.1%;

[0031] ② Self-made simple incubator: choose a digital display thermostat, a thermometer, a suitable size waste foam plastic box, a power cord with a plug and a lamp holder, and a 60W heating lamp to assemble a 50cm x width 40cm x 30cm high simple incubator box, which can cultivate 10 kg of seeds;

[0032] ③Super-drying treatment of seeds: Pour the seeds into a breathable mesh bag, put them in a self-made simple incubator, first set the temperature at 40°C for 12 hours, and then set the temperature at 60°C for 18 hours to obtain super-dry seeds with a moisture content of 7%. seed;

[0033] ④Ultr...

Embodiment 3

[0036] A method for killing insects by utilizing the heat resistance of ultra-dry rice seeds, comprising the following steps in sequence:

[0037] ① Self-made simple incubator: buy a digital display thermostat, a thermometer, a 220V, 40W PTC heater, a power cord with a plug, use waste foam board to make a wooden box, and assemble into a simple incubator;

[0038] ②Seed material: Purchase 5kg of Y Liangyou 5813 hybrid single-cropping rice seeds from the seed store, store them for 3 months and find that there are corn weevils, wheat moths and other pests;

[0039] ③Super-drying treatment of seeds: Put the seeds in air-permeable bags, put them in a simple homemade incubator, first set the temperature at 45°C for 10 hours, and then set the temperature at 60°C for 16 hours to obtain super-dry seeds with a moisture content of 5%. ;

[0040] ④Ultra-dry seeds with high temperature and dry heat to kill seed pests: immediately set the temperature to 75°C after super-dry seeds, and bak...

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PUM

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Abstract

The invention discloses a method for killing injurious insects by utilizing heat resistance of ultra-dry rice seeds. According to the method for killing injurious insects by utilizing heat resistance of ultra-dry rice seeds provided by the invention, the ultra-dry rice seeds are subjected to high-temperature dry heat treatment and the like based on the newly discovered characteristic of particularly excellent high-temperature dry heat resistance of the ultra-dry rice seeds. Injurious insects of various states in the rice seeds can be completely killed at a higher temperature; and the seed germination rate and other quality safety can be ensured. The method comprises the following steps: (1) performing rice seed ultra-drying treatment, namely drying dry rice seeds by setting a certain temperature and time so as to obtain ultra-dry rice seeds, wherein the moisture of the seeds is 5-7%; (2) killing the injurious insects in the seeds by utilizing high-temperature dry heat of ultra-dry seeds, immediately setting a certain high temperature and time for drying while obtaining the ultra-dry seeds, wherein drying is performed at the temperature of 75-80 DEG C for 12-18 hours, so that all the injurious insects produced in the rice seeds can be completely killed; and (3) sealing and packaging the seeds, namely cooling and taking out the seeds in which injurious insects are killed by the high-temperature of the ultra-dry seeds, immediately packaging and sealing, and preserving and storing in a dry and ventilated place at room temperature. Therefore, moisture absorption of the seeds and secondary intrusion of the injurious insects can be avoided.

Description

technical field [0001] The invention relates to agronomic plant protection technology and belongs to the field of crop seed storage. Background technique [0002] Seed pests are insects that damage seeds. Rice seeds will be damaged by pests such as wheat moth and corn weevil. Once the wheat moths and corn elephants are found in the seeds, if they are not killed in time, the germination rate of the seeds will drop, or even drop to zero. At present, farmers usually use sun-dried seeds to kill pests when they find pests in the rice seeds they keep or buy, and they also use "Liangchongqing" and other pesticides to dress seeds to kill pests. The heat is strong, and sometimes at 50°C-60°C for 10 hours, all the pests cannot be killed; the effect of killing insect larvae and adults with chemicals is good, but the effect on pest eggs and pupae is poor; Strong, drying seeds or using pesticides to kill seed pests cannot completely kill all forms of pests, leaving a few pests will ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/08A01C1/00
CPCA01C1/00A01C1/08
Inventor 叶世青
Owner 叶世青
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