Accompanying cultivation method for green prevention and control of vegetable root knot nematode disease

Abstract

The invention relates to an accompanying cultivation method for green prevention and control of vegetable root knot nematode disease and belongs to the technical field of accompanying cultivation methods. According to the accompanying cultivation method for green prevention and control of the vegetable root knot nematode disease, one of tomato, cucumber and hot pepper is selected to serve as a main cultivation crop, and Chinese onion serves as an accompanying cultivation crop and is planted on two sides of the main cultivation crop according to local conventional cultivation methods. According to the accompanying cultivation method for green prevention and control of the vegetable root knot nematode disease, biological diversity and a principle of allelopathy among crops are utilized, the vegetable root knot nematode disease is reduced by adopting the Chinese onion accompanying cultivation method, the used amount of pesticides is reduced, pesticide residues are reduced, and effective technical guarantee is provided for production of green and pollution-free vegetables.

Description

[0001] technical field [0002] The invention relates to a green associated cultivation method for preventing and controlling vegetable root-knot nematode disease, and belongs to the technical field of associated cultivation methods. Background technique [0003] With the continuous cropping of vegetables in protected areas, vegetable root-knot nematodes have occurred in large numbers. Generally, the production will be reduced by 20% to 30%, and the serious one will be reduced by more than 50%, or even basically no harvest. At the same time, the damage of root-knot nematodes often aggravates the occurrence and damage of soil-borne diseases such as fusarium wilt and root rot of melon and fruit vegetables, which has become a major obstacle to the production of facility vegetables. At present, chemical agents such as methyl bromide are mainly used for prevention and control in production, and most of the nematicides are highly toxic, highly toxic and have serious residues, wh...

AI Technical Summary

Problems solved by technology

Generally, 20% to 30% reduction in production is caused, and more than 50% of serious production reduction, or even basically no harvest.

At the same time, the damage of root-knot nematodes often aggravates the occurrence and damage of soil-borne diseases such as fusarium wilt and root rot of melon and fruit vegetables, which has become a major obstacle to the production of facility vegetables

At present, chemical agents such as methyl bromide are mainly used for prevention and control in production, and most of the nematicides are highly toxic, highly toxic and have serious residues, which are also easy to cause environmental pollution, which greatly restricts the sustainable development of vegetables; there are also biological pesticides, such as Biocontrol agents

Due to the limitations of its use conditions and control effects, it is still less used in production at present; in agricultural production, methods such as grafting of resistant rootstocks and alien soil methods are sometimes used to reduce the occurrence of vegetable root-knot nematodes. However, due to the professionalism of operation, the limited land area, the fixedness of cultivation facilities, and the influence of factors such as market and economic interests, these methods are also subject to great limitations.