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Special thermal killing device for vegetable diseases and insect pests in greenhouse and using method thereof

A technology for pests and greenhouses, applied in the field of greenhouses, can solve the problems of excessive pesticide residues, quality decline, and serious occurrence of pests and diseases in vegetables, and achieve the effects of reducing chemical pesticide input, high safety, and simple structure

Inactive Publication Date: 2016-08-24
SHANXI AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The device is simple in structure, easy to operate, safe and efficient, and can solve the problems of serious occurrence of diseases and insect pests, enhanced resistance of harmful organisms, excessive and frequent use of chemical pesticides, excessive pesticide residues in vegetables, and quality decline in vegetable production in facilities.

Method used

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  • Special thermal killing device for vegetable diseases and insect pests in greenhouse and using method thereof
  • Special thermal killing device for vegetable diseases and insect pests in greenhouse and using method thereof

Examples

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Effect test

Embodiment 1

[0048] Use the device of the present invention to remove the weeds in the greenhouse by thermally sterilizing and killing insects in the greenhouse before the vegetables are planted, level the ground, cover the plastic film and the shed film, close the bypass valve of the device of the present invention, and the valve of the radiator can be opened or closed. Open all other valves, fill the insulation water tank with water, adjust the outlet water temperature of the boiler to 90°C, ignite the fire, and turn on the water supply pump and return water pump at the same time to accelerate the water cycle. After the return water temperature is stable at 65°C, continue heating for 1-2 hours Turn off the boiler igniter to complete the disinfection and sterilization of the greenhouse and soil. This operation can keep the soil in the 50cm plow layer of the greenhouse and the indoor temperature at 65-80°C for 1-2 hours, which can kill all kinds of vegetable germs and pests that survive in ...

Embodiment 2

[0050]Utilizing the device of the present invention to prevent and treat physiological diseases at the seedling stage of vegetables, if the vegetable seedling stage of the greenhouse encounters low temperature and continuous rainy days, the development of the root system of the plant will be hindered, the growth potential will be weak, and sometimes even physiological retting or stiff seedlings will be caused. At this time, use the present invention After the device closes the vents of the shed at night and covers the heat preservation quilt, adjust the temperature of the boiler outlet water to 36°C and ignite the fire. After the return water temperature is stabilized at 20-25°C, continue to ignite for 2-4 hours to ensure that the greenhouse soil at night is stable. The temperature in the mild greenhouse is not lower than 10°C, which can effectively reduce the occurrence of physiological root retting or stiff seedlings.

Embodiment 3

[0052] Utilize the device of the present invention to prevent botrytis cinerea in the growth period of vegetables Vegetable botrytis is an important airborne disease in greenhouse vegetable production, although the sclerotia of botrytis sclerotia that survives the winter with the diseased residue in the greenhouse soil can be killed after soil heat sterilization , mycelia, but their asexual spores can enter the greenhouse from the outside through the vents to harm vegetables, and may cause serious harm to vegetables in a short period of time. In addition to the device, the thermal killing device of the present invention can also be used to create a temperature and humidity condition that is beneficial to the growth and development of vegetables, but not conducive to the reproduction, infection and spread of pathogens, so as to carry out ecological control of diseases. Botrytis cinerea is suitable for occurrence under low temperature and high humidity conditions. For prevention ...

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PUM

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Abstract

A vegetable pest heat killing device specially used in a greenhouse comprises a boiler, a water supply pump, a heat preservation water tank, a hot water separator, a back water collector, a heat radiator and a water seepage floor heat pipe, wherein the boiler, the heat preservation water tank and the water supply pump are installed in an aisle outside the greenhouse, the hot water separator, the back water collector and the heat radiator are installed at proper positions on the ground inside the greenhouse, and the water seepage floor heat pipe is horizontally buried 35 cm below the soil surface of the greenhouse. According to the use method of the vegetable pest heat killing device specially used in the greenhouse, a control valve of the vegetable pest heat killing device is adjusted to be opened or closed in different stages according to the occurrence rules of pests in different stages of the greenhouse, various pest living bodies surviving in the soil of the greenhouse can be killed before field planting, ecological control and prevention are carried out on physiological diseases in the seedling stage of vegetables, gray mold and downy mildew in the growth stage of vegetables and the like, and meanwhile water and fertilizer integrated water-saving irrigation can be implemented. The vegetable pest heat killing device specially used in the greenhouse can largely reduce chemical pesticide input and environmental pollution, reduce pesticide remaining on the agricultural products, and improve the quality of vegetables.

Description

technical field [0001] The invention relates to the technical field of facility agricultural production and the prevention and control of diseases and insect pests, in particular to a [0002] A device for controlling vegetable diseases and insect pests and a method for using the same. Background technique [0003] With the rapid development of facility agriculture, vegetable cultivation has achieved annual production in the vast areas north of the Yangtze River in my country. [0004] And off-season supply, greatly improving and improving the living standards of the people. However, after continuous cropping of the facility, due to its soil [0005] Physical and chemical properties, as well as changes in light, temperature and humidity, and gas, some harmful organisms reproduce rapidly, and the natural growth of soil microorganisms [0006] The balance is destroyed, resulting in the occurrence of various vegetable diseases and insect pests increasing year by year. Espec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M21/04A01G9/24A01C23/04
CPCY02A40/25
Inventor 高俊明
Owner SHANXI AGRI UNIV