Chemical control method for preventing root rot of melons and fruits

Abstract

The invention discloses a chemical control method for preventing the root rot of melons and fruits. The invention is characterized in that the method comprises the following steps: preparing chemical soil according to the ratio of 1:100 of 50% thiophanate methyl wettable powder to fine soil on the ploughed farmland, placing a small amount of the chemical soil in burrows or nutrition pots, sowing seeds, and covering the seeds with the chemical soil; and uniformly spraying the mixture of 50g of lvheng and 30kg of water on the ground surface for per mu of the farmland, deep raking and uniformly mixing in the plough layer to kill germs in the soil. When the euphylla of the seedling spread, the root is drenched with the medicament: drenching the root for 2-3 times with 600 times 70% thiophanate methyl solution, wherein the amount for the first drenching is 50-100ml, and the amount for every subsequent drenching is 150-200ml. When a diseased plant is found in the field, 600 times thiophanate methyl wettable powder solution and 1000 times lvheng solution are used, and the two solutions are alternatively used at intervals of 7-10 days each time and used 2-3 times in total.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and relates to the prevention and control technology of the melon and fruit roots of agricultural products. The technology achieves the purpose of radically curing root rot through a control method of scientifically combined use of medicaments. Background technique [0002] Since the 1990s, with the rapid development of greenhouse vegetable production, root rot has gradually become one of the main diseases, which has caused extremely adverse effects on the yield and quality of melons, fruits, and legume vegetables. Early, rapid spread, great damage, heavy losses. Root rot is caused by fungi, nematodes, and bacteria. The roots of the damaged plants are rotten or even necrotic, and the diseased plants die. Fungi such as Pythium, Phytophthora, Rhizoctonia, Fusarium, and Sclerotinia are the main pathogens. The causative nematodes are mainly Brachybody nematodes. Bacteria that cause ...

AI Technical Summary

Problems solved by technology

[0007] These methods mainly use individual pesticide preparations, without reasonable and scientific combination of drugs, often the effect is not very obvious, which seriously affects the development of agricultural production, is not conducive to the development of rural economy, and because there is no scientific and rational use of pesticides, it is extremely harmful to the soil structure and environment. Unfavorable, at present, it is often due to the excessive use of a single pesticide formulation, which not only increases the resistance of the bacteria, but also causes pollution to the crops, thus affecting people's health