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Anonymous users2024-02-12<> soil-borne diseases in the process of vegetable planting are not easy to detect in the early stage, and when the diseases are discovered, they are generally more serious, often causing dead seedlings. Soil-borne diseases can be prevented by dipping the roots with pesticides before colonization.
Dipping roots has two main functions, one is to protect and promote the growth of the root system, and promote the seedlings to pass the slow seedling stage safely and quickly. Second, it can enhance the resistance of the root system to the adverse environment and harmful bacteria, and prevent the occurrence of diseases in advance.
At present, there are many types of root dipping products, and the commonly used pesticides are mainly divided into four categories:
Dipping root product varieties.
1. Fungicide: mainly used for the prevention and control of root diseases, it is advisable to choose good systemic and suspension form, which is safe and efficient.
2. Biological fungal agent: it can improve root activity, promote rooting, improve disease resistance, and inhibit pathogenic bacterial infection.
3. Rooting and root-raising products: mainly used to promote rooting, improve root activity and stress resistance.
4. Insecticides: mainly used to prevent all kinds of insect pests, including underground pests and repel aphids, whiteflies, mites, etc.
Under normal circumstances, the choice of biological bacteria for root dipping agents has greater advantages, longer duration and more effects, but it is necessary to pay attention to the selection of high-quality biological bacteria products and correct use; For soil-borne pests and diseases, and there is no time to take soil disinfection measures after stubble change, it is recommended to dip the roots with pesticides to avoid the root system being infected by pests and diseases; If the stubble is stubble-shedding in the stubble changing stage, or the organic fertilizer is applied, it is more suitable to use the biological fungus agent to dip the roots.
At present, the compound use of pesticides is extremely common, but every year there are pesticide damage due to arbitrary increase of concentration, or improper compounding of pesticides, which affects the growth of the root system. It is necessary to choose the appropriate corresponding agent for mixing according to the actual situation, and the concentration of dipping roots is 50% higher than that of foliar spraying.
Dipping root requirements. Soak the seedling tray for more than 10 seconds, wait for the root system and substrate to absorb enough medicinal solution, lift the corner of the seedling tray, drench off the excess medicinal solution, and then plant and irrigate. Seedlings dipped in the liquid medicine should be planted in time, and should not be left overnight before planting.
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Anonymous users2024-02-11Fungicide melon vegetables are mainly based on root diseases caused by oomycetes Dipping plate formula 772 grams, downy mildew hydrochloride water agent, Prik, 750 times liquid, 30, oxamine water agent 1500 times liquid, chitin, amino acid rooting agent 300 times liquid nightshade fruit vegetables Phytophthora root rot, Fusarium rot, Fusarium wilt, etc. Chitin, amino acid rooting agent 300 times liquid.
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