A method of gathering and eliminating the soil nematodes in greenhouses

A technology of soil nematodes and greenhouses, which is applied in the fields of trapping or killing insects, applications, animal husbandry, etc. It can solve the problems of inability to remove, easy to relapse, increase the use and residue of pesticides, etc., to reduce the probability of relapse and volatilization Speed, reduce the effect of soil damage

Active Publication Date: 2021-12-21
SHIJIAZHUANG ACADEMY OF AGRI & FORESTRY SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nematodes are mainly distributed in the soil layer of 0-20cm in the soil. 15-30°C is the suitable temperature for growth and reproduction of nematodes. If the temperature is lower than 10°C, they will be dormant in the form of cysts. When the temperature reaches above 10°C, the eggs can hatch. For larvae, high temperatures above 40°C and low temperatures below 5°C can inhibit the survival of larvae and the hatching of cysts. Some studies have found that low temperatures of 0-5°C can kill larvae of A. incognita, but not eggs (cysts). Cysts have a strong ability to adapt to harsh environments and are prone to relapse
The existing nematode control methods include spraying the soil, fumigation and burning, etc., but spraying and fumigation will increase the use and residue of pesticides and cannot be removed; the cost of turning over is relatively high, so it is currently only used in large fields

Method used

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  • A method of gathering and eliminating the soil nematodes in greenhouses
  • A method of gathering and eliminating the soil nematodes in greenhouses
  • A method of gathering and eliminating the soil nematodes in greenhouses

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1, the method comprises the steps:

[0026] A. If figure 1 As shown, water spinach is sown in columns in greenhouse 0; the plants 14 in the embodiment of the present invention are all water spinach, and water spinach belongs to dwarf leafy vegetables, which is convenient for the entry of ditching and spreading devices in the later stage. Compared with grapes and passion fruit The growth cycle is short, the cost is low, and the vine frame does not need to be removed. On the other hand, water spinach is heat-resistant and suitable for summer growth.

[0027] B. Detect the soil at the root of water spinach. When cysts are formed in the root of water spinach, it indicates that nematodes gather in the root of water spinach, which indicates that it is suitable for the operation of stuffy shed. According to the adjustment of the period from sowing to cyst formation, the time of stuffy shed is controlled in mid-July , water the soil in the greenhouse 0, keep the soi...

Embodiment 2

[0041] Embodiment 2 is basically the same as Embodiment 1, the only difference is that a method for inhibiting soil nematodes in greenhouses, the method comprises the following steps:

[0042] A. Sowing water spinach by column in greenhouse 0;

[0043] B. According to the adjustment of the cycle from sowing to cyst formation, the time of stuffy shed is controlled at the end of July, and the soil is watered in greenhouse 0, and the soil humidity is kept at 80-85%. The temperature can reach 60-80℃, and the time of stuffy shed is 7 days;

[0044] C. Open the greenhouse to release heat, and the heat release time is 2 hours;

[0045] D, ditching the soil surface in the greenhouse 0, spreading cooling materials and covering soil, making the soil temperature drop instantaneously, the depth of ditching is 18cm, wherein the cooling materials are dry ice and liquid nitrogen, and the usage amount of dry ice is 150kg / mu. The usage rate of liquid nitrogen is 100kg / mu.

[0046] E. Cover ...

Embodiment 3

[0048] Embodiment 3 is basically the same as Embodiment 1, the only difference being that it is a method for suppressing soil nematodes in greenhouses, the method comprising the steps of:

[0049] A. Sowing water spinach by column in greenhouse 0;

[0050] B. According to the adjustment of the cycle from sowing to cyst formation, the time of controlling the stuffy shed is in mid-August, water the soil in the greenhouse 0, and keep the soil humidity at 80-85%. The temperature can reach 60-80 ℃ and the time of stuffy shed is 8 days;

[0051] C. Open the greenhouse to release heat, and the heat release time is 3 hours;

[0052] D, ditching the soil surface in the greenhouse 0, spreading cooling materials and covering soil, so that the soil temperature drops instantaneously, the depth of ditching is 20cm, wherein the cooling materials are dry ice and liquid nitrogen, and the usage amount of dry ice is 130kg / mu. The consumption of liquid nitrogen is 110kg / mu.

[0053] Experiment...

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Abstract

The invention relates to a method for gathering and eliminating soil nematodes, which belongs to the technical field of soil nematode prevention and control. The method comprises the following steps: A. planting plants in rows in a greenhouse; B. watering the soil in a greenhouse, Close the greenhouse for 7-10 days; C, open the greenhouse to release heat; D, ditch the soil surface in the greenhouse, spread cooling materials and cover the soil, so that the soil temperature drops instantaneously, and ditching The depth is 15-20cm; the present invention gathers the nematodes at the roots of the plants, adopts a combination of cold and heat, can effectively kill the nematodes in the soil of the greenhouse, regardless of adults, larvae or cysts, and the female nematodes that survived by chance can survive under high temperature. Incomplete development in the environment, impaired reproductive ability, reduces the probability of soil nematode recurrence, and at the same time, the method reduces the use of chemicals, reduces damage to the soil, is safe, reliable, and pollution-free.

Description

technical field [0001] The invention belongs to the technical field of preventing and controlling soil nematodes in greenhouses, and relates to a method for preventing and controlling soil nematodes in greenhouses, in particular to a method for gathering and eliminating soil nematodes in greenhouses. ( Background technique [0002] The soil nematode is a highly specialized omnivorous phytopathogenic nematode that uses aerobic respiration. The nematodes mainly harm the roots of various vegetables, which are characterized by the formation of spherical or conical white nodules of different sizes on the fibrous roots of young roots, and some are bead-shaped. The above-ground parts of the damaged plants grow short and slow, with abnormal leaf color, few fruits, low yield, and even cause early death of the plants. Nematodes have become a kind of "cancer" in greenhouse vegetable cultivation. Nematodes are mainly distributed in the soil layer of 0-20cm in the soil. 15-30°C is the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M17/00
CPCA01M17/00A01M17/002
Inventor 师建华及华张庆银齐连芬田东良张海新李燕王丹丹张艳轮原飞张金雷
Owner SHIJIAZHUANG ACADEMY OF AGRI & FORESTRY SCI
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