A kind of comprehensive prevention and control method for soil-borne diseases in pepper cultivation

Abstract

The invention provides a comprehensive control method for the soil-borne diseases in cultivation of peppers. The method comprises the steps of seed disinfection, seedbed selection and treatment, chemical spraying during the growth and development and shed disinfection. According to the comprehensive control method, the occurrence of the damping-off disease is effectively prevented by starting from the cultivation of sterile and strong seedlings; in combination with the disease and pest control in a stage of growth and development, roots are irrigated once 5-7 days after field planting and seedling transplanting, and chemicals are applied continuously 5-6 times, so that a certain inhibition and killing effect on harmful bacteria and fungi in the soil is achieved; besides, the soil-borne diseases in a stage of pepper cultivation can be well controlled, and the rate of dead plants in the field is significantly reduced; after all the peppers are harvested in July, a leisure period of a shed is utilized to conduct high-temperature sealing on the shed so as to effectively kill pathogenic bacteria and underground pests in the soil and significantly reduce the incidence of various soil-borne diseases caused by continuous cropping. The comprehensive control method for the soil-borne diseases in the cultivation of peppers mainly adopts novel biological pesticide, and has the advantages of being high in efficiency, broad in spectrum, environmentally friendly, low in toxicity and free of residues, simple, convenient to operate and suitable for large-scale field application.

Description

technical field [0001] The invention belongs to the field of plant breeding, and specifically refers to a method for comprehensive prevention and control of soil-borne diseases in pepper cultivation. Background technique [0002] In the protected cultivation of pepper, the conditions are suitable, and the disease can reproduce in four seasons and cause annual damage. In northwestern Fujian, plastic greenhouses are planted twice a year, with each crop lasting 4 to 6 months. The growth cycle is long. Due to the limitations of land resources and facility conditions, the soil is heavily cropped and it is difficult to reverse the crop. At the same time, the microenvironment of facility cultivation is full of various pathogenic bacteria. The overwintering and reproduction provided a comfortable environment, which aggravated the occurrence of soil-borne diseases such as pepper root rot, stem rot, bacterial wilt, and blight. Stubble disease, commonly known as plant cancer, is a glo...

AI Technical Summary

Problems solved by technology

The Trichoderma preparation used in the method has a good control effect on capsicum blight in the field. Although the biocontrol preparation has a certain control effect on specific diseases, the duration of the effect is relatively short, and it is not suitable for preventing and controlling sudden and explosive disasters. Moreover, the occurrence of field diseases is often a combination of multiple diseases and insect pests, and the control of a single disease is difficult to achieve the expected effect. Chemical integrated control is still the most effective and convenient control measure in production practice.

[0006] Publication No. CN105494445A invention patent discloses a preparation and application for the prevention and treatment of Fusarium wilt of pepper. The control effect on Fusarium wilt of pepper is 53.75%-68.54%. Complicated, cumbersome steps, difficult to apply on a large scale in production