Prevention and treatment method for root rot of idesia polycarpa maxim seedlings transplanted in field

Abstract

The invention belongs to the technical field of root rot, and discloses a prevention and treatment method for root rot of idesia polycarpa maxim seedlings transplanted in a field. Through deep furrowsand high ridges, the field humidity is reduced, and the field environment generated by the root rot is prevented; lime sulphur is used for soaking roots before idesia polycarpa maxim is transplanted,funguses are permeated and eroded, and root rot funguses are eliminated before then idesia polycarpa maxim seedlings are transplanted in the field; bacillus subtilis protects roots to protect the idesia polycarpa maxim from being damaged by pathogenic bacteria and kill the root rot funguses, so that the whole growth period of the idesia polycarpa maxim is no longer subject to the damage of funguses. The bacillus subtilis grows and propagates through nutrition competition, thereby preventing the growth of plant pathogenic bacteria through a mode of occupying living space, a layer of high-density protective film can be formed on the plant surface, so that the pathogenic bacteria cannot obtain the living space, and crops are protected from being damaged by the pathogenic bacteria. The bacillus subtilis can secretes antifungal substances, inhibit the germination of pathogen spores and the growth of hyphae, thereby achieving the purpose of prevention and treatment; the prevention and treatment rate of the root rot reaches 98%.

Description

technical field [0001] The invention belongs to the technical field of prevention and treatment of root rot, and in particular relates to a method for prevention and treatment of root rot of field-transplanted seedlings of jacaranda. Background technique [0002] At present, the commonly used prior art in the industry is as follows: 1 to 2 years after the seedlings are transplanted in the field, due to the weak growth of the root system, when the field humidity exceeds 60% of the maximum water holding capacity in the field, it is easy to induce root rot. Occurs in large quantities, resulting in loss of production. Root rot is a disease caused by a fungus. The disease will cause the roots to rot, the function of absorbing water and nutrients will gradually weaken, and finally the whole plant will die, mainly manifested as yellowing and withering of the leaves of the whole plant. The traditional control method of root rot is: in the early stage of root rot after the field tra...

AI Technical Summary

Problems solved by technology

However, with the rapid growth of plants, the root medicinal liquid will be lost with the water in the later period, and the concentration of the medicinal liquid will decrease. The amount and concentration of the medicinal solution that enters the various parts of the plant along with the water is reduced, which means that the plant has no symptoms and eventually leads to the death of the plant.

leading to a reduction in the effectiveness of the control

[0003] To sum up, the problem existing in the existing technology is that the control effect can be achieved in the early stage of plant growth, but in the later stage, the amount and concentration of the medicinal liquid entering the various parts of the plant along with the water decrease, resulting in a delay in the asymptomatic manifestation of the diseased plant. Continue to prevent and control, resulting in plant death and poor control effect

[0004] The difficulty and significance of solving the above-mentioned technical problems: the main reason for the low control efficiency of traditional root rot control methods is that in the initial stage of root rot disease, only individual branch roots and fibrous roots are infected, and the early plants do not show symptoms. The amount and concentration of the liquid medicine that water enters each part of the plant decreases, causing the plant to be diseased and asymptomatic. When a susceptible plant is found, it is often in the middle and late stages of the disease, and the control effect cannot be achieved.

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