Method for comprehensively preventing and controlling root knot nematode disease of organic cucumbers in greenhouse

Abstract

The invention provides a method for comprehensively preventing and controlling a root knot nematode disease of organic cucumbers in a greenhouse. The method comprises the steps of agricultural prevention and control, physical prevention and control and biological prevention and control, wherein biological bacterial fertilizers are heavy-dressed in agricultural prevention and control, the biological characteristics of root knot nematodes are utilized and measures such as water irrigation, high-temperature greenhouse sealing and soil turnover are adopted to kill the root knot nematodes in physical prevention and control, and an organic cucumber root knot nematode disease prevention and control plant-sourced agent is adopted in biological prevention and control. The fertilizers and agent adopted in the method are friendly to the environment and free of pollution, have no toxic or side effect on people and livestock and have no residue in soil. The used fertilizers, the agent and the used materials are available in the market, and used plant resources are rich, easy to obtain and wide in distribution and can be seed in any place, for example, fields, the edges of fields, the places around houses, hills and mountain slopes. The used fertilizers and agent are simple to prepare, the fertilizers are traditional processing methods for farmers, the agent is extracted with ethyl alcohol without machines and devices, the cost is also lower, and the method is easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of vegetable production, and in particular relates to a method for comprehensive prevention and treatment of organic cucumber root-knot nematode disease in greenhouses. Background technique [0002] Cucumber root-knot nematode is one of the common diseases in cucumber production, especially in vegetable cultivation in protected areas, often causing serious economic losses. Root-knot nematodes not only cause direct loss of vegetables, but also can aggravate the occurrence of soil-borne fungal diseases, bringing huge disasters to cucumber production activities. [0003] For the control of root-knot nematode, crop rotation is the most important agricultural measure, and the effect is also very significant. However, it is particularly difficult and has great limitations for production conditions such as greenhouses (large investment, high investment, and maximum benefits). The second is that the quality of pla...

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Problems solved by technology

However, it is particularly difficult and has great limitations for production conditions such as greenhouses (large investment, high investment, and maximum benefits).

The second is that the quality of planting disease resistance can resist the damage of root-knot nematode to the maximum extent, but due to various factors, the selection and promotion of nematode-resistant varieties is very slow. Due to the long breeding cycle, the progress is very slow; and the use of modern biotechnology to breed resistance to nematode disease is still in the exploratory stage (Zhu Mingliang, 2003)

However, at present, the number of such varieties is small, which cannot meet the production needs. Secondly, due to the limitation of varieties, it will take time to cultivate varieties with complete resistance to root-knot nematodes.

The third is to cultivate grafted cucumber seedlings. This measure has been implemented in some areas, and the effect is good. However, due to technical reasons, there is still a long way to go for large-scale promotion.

In physical control, the biological characteristics of root-knot nematodes can be used to kill root-knot nematodes by taking measures such as water irrigation, high-temperature stewed sheds, and soil plowing. However, it is an auxiliary measure after all. What should I do if the disease occurs during plant growth? At present, people generally use chemical nematicides for prevention and control in production, but the use effect of traditional fumigants and non-fumigant chemicals "immediate effect" has played a great role in controlling the harm of nematodes, and long-term use brings A series of problems, such as the harm of pesticide residues to humans and other organisms, the re-emergence of secondary diseases, and environmental pollution have become increasingly prominent, and most of these pesticides are highly toxic and high-residue pesticides, many of which have been gradually banned

Biological control technology can make up for the deficiencies of chemical control, but the biocontrol strains are affected by complex soil ecological factors in the soil, the stability of the biocontrol agent cannot be guaranteed, and the control effect is unstable, which directly restricts the promotion and application

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