A kind of method for comprehensive prevention and control of soil nematodes

Abstract

The invention discloses a method for comprehensive prevention and control of soil nematodes. It comprises the following steps: 1) Soil plowing treatment: sprinkle sesame residue on the surface of the facility soil caused by plant parasitic nematodes, and then plow; 2) Covering the distribution zone: dig a few in the facility soil after step 1) treatment. Pit, in each pit, bury a distribution belt with a small hole at one end, cover the distribution belt with a plastic film, and bury it with soil around the film; 3) liquid ammonia disinfection treatment: pass through the distribution belt Apply liquid ammonia to the soil of the facility; 4) Remove the film: After the liquid ammonia is sterilized, uncover the plastic film, then dry the soil of the facility, plant crops, and perform conventional field management. In the present invention, the combination of liquid ammonia and sesame residue has better soil disinfection effect and better soil disease treatment effect, and the synergistic utilization of the two is a good low-toxic, low-cost, high-efficiency soil root knot Nematode control methods.

Description

technical field [0001] The invention relates to a method for comprehensive prevention and control of soil nematodes, which belongs to the technical field of agricultural intensive production. Background technique [0002] Root-knot nematode (Meloidogyne spp.) belongs to the genus Meloidogyne spp. and is an important class of soil-borne pathogens. Its host range is very wide, and more than 3,000 species of plants can be infected by it, such as vegetables, fruit trees, ornamental plants, tobacco, medicinal materials, and weeds, among which plants such as Solanaceae, Cucurbitaceae, and Cruciferae are particularly affected. . It is estimated that plant parasitic nematodes cause direct economic losses of up to 100 billion US dollars to the world's agricultural production every year. It is reported that about 50% of the greenhouse vegetables in China have different degrees of root-knot nematode damage, and the annual economic loss is as high as 400 million US dollars. Especiall...

AI Technical Summary

Problems solved by technology

[0003] At present, the control of root-knot nematodes mainly relies on chemical agents to treat the soil. However, due to the lack of development of nematicides, the range of options is small, and some agents that were widely used in the past have been banned or stopped developing, such as DD, EDB, Fonsofos, Demiphos, Amiphos, Tetraphos, etc.

However, most of the existing varieties also face many problems such as high cost, unsatisfactory control effect, and even phytotoxicity and resistance, which make the chemical control of plant nematodes face difficulties.

Images