Method for controlling root knot nematode by utilizing ozone water

A root-knot nematode disease and ozone water technology, applied in the direction of nematicides, botany equipment and methods, chemicals for biological control, etc., can solve the problems of ineffective insecticide and damage to aboveground parts of crops, etc. Achieve quality improvement, promote plant growth, reduce the effect of crop growth

Inactive Publication Date: 2013-02-13
山东泽恩农业科技股份有限公司
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  • Application Information

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Problems solved by technology

However, since root-knot nematodes are mainly active in the rhizosphere soil, and the ozone water in the water is very easy to escape from the water and decompose by itself, this method will not only have no insecticidal effect, but will also cause certain damage to the aboveground parts of the crops. At the same time, the high concentration of ozone in the soil can inhibit the growth of plants. Therefore, there has been no report on the use of ozone water to prevent and control underground root-knot nematode.

Method used

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  • Method for controlling root knot nematode by utilizing ozone water

Examples

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Effect test

Embodiment 1

[0012] Ozone water is used to irrigate greenhouse tomatoes, and the air-cooled discharge ozone generator is used to produce ozone. The generated ozone is directly passed into the water pipeline mixer to make it fully soluble in water, and the ozone concentration is controlled at 1.3-1.7ppm. Use pipes to transport to the tomato root zone for irrigation, and water it every 10-15 days after the fixed value, and water it according to its daily growth needs. In the early stage, it is watered with 1.3-1.7ppm ozone water at intervals of 12-15 days. In the later stage, irrigate with 1.5-1.7ppm ozone water at an interval of 10-12 days, and irrigate 10 to 12 times in total; after use, tomato root-knot nematode disease is effectively suppressed, and less than 5% of the plants have a small number of nodules on the roots, and the growth At this stage, the tomato plants grew normally, and no wilting plants appeared.

Embodiment 2

[0014] Ozone water is used to irrigate the muskmelon in the greenhouse, and the air-cooled discharge ozone generator is used to produce ozone, and the generated ozone is directly passed into the water pipeline mixer to make it fully soluble in water, and the ozone concentration is controlled at 1.7-3.0ppm for ozone water The pipeline is transported to the root zone of the plant for irrigation. After the value is set, according to the growth needs of the plant, it is watered once every 10-12 days, and a total of 8-10 times of watering; each interval of 12 days in the early stage, watering with 1.7-2.0ppm ozone water, In the later period, each interval was 10-11 days, and watered with 2.0-3.0ppm ozone water; after use, the plants generally grew vigorously, and the leaves were dark green. All plants did not appear symptoms of root-knot nematodes such as wilting, and the fruit grew normally. Only 10 % of the roots of the plants have root nodules, but the number is small and the siz...

Embodiment 3

[0016] Ozone water is used to irrigate watermelons in greenhouses, and the ozone concentration is controlled at 2.1-3.3ppm. After the value is set, watering is carried out every 5-10 days. In the early stage, each interval is 8-10 days. 5-7 days, irrigate with 3.0-3.3ppm ozone water, irrigate 7-9 times, and the frequency and concentration of irrigation can also be determined according to the growth situation. There are a few tumors, but there are no obvious symptoms. The shape of the watermelon is regular and the quality is good.

[0017] Detection results of 2nd instar larvae of root-knot nematode in greenhouse tomato soil (attached table)

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Abstract

The invention discloses a method for controlling root knot nematode by utilizing ozone water. In the method, the ozone water is used as root irrigation physic liquor, and a plant root zone is irrigated once per 5-15 days until fruits are harvested. By utilizing the ozone water to continuously carry out root irrigation on plant soils for many times, the generation of the root knot nematode can be efficiently controlled, damage on the growth of plants can not be caused either, and the method is a new technology of green food production.

Description

technical field [0001] The invention belongs to the technical field of plant root-knot nematode prevention and control, and in particular relates to a method for preventing and treating plant root-knot nematode by using ozone water. Background technique [0002] Plant root-knot nematode is an infectious disease caused by nematodes. It is quite common in my country and seriously harmful. There are more than 3,000 species of host plants in 114 families. In vegetable-producing areas, the incidence rate increases year by year with repeated cropping. According to the survey, the current incidence of root-knot nematode disease in greenhouse vegetables is generally 30%-50%, in some areas it is about 70%, and in serious cases it reaches 100%. Once nematode disease occurs in greenhouse vegetables, the light ones will reduce the yield by 20%-30%, and the severe ones will reduce the yield by 50%-70%, or even stop production. Root-knot nematode has become a major obstacle to the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01N59/00A01P5/00
Inventor 丁建法李世祥吴学金张乐洲丁杰赵洪海陈优明
Owner 山东泽恩农业科技股份有限公司
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