Why use potassium permanganate when planting seedlings
A small tip for life: introducing the reasons for using potassium permanganate when planting seedlings and the role of potassium permanganate in seedlings, with the following green plant and flower planting content:
The role of potassium permanganate in seedlings--Potassium permanganate solution has strong bactericidal and disinfectant effects, and is very effective in preventing and treating various seedling diseases. It is non-toxic and leaves no residue, and can also be used as a trace fertilizer to prevent diseases such as seedling lodging, damping-off, downy mildew, soft rot, wilt, root rot, and viral diseases.
Seed soaking and disinfection:
Use a 0.3% to 0.5% potassium permanganate solution to soak seeds of cedar, pine, eucalyptus, camphor, tea camellia, magnolia, woodstock, tea, peach, and hawthorn; or use a 0.1% to 0.2% potassium permanganate solution to soak seeds of soybeans, peanuts, corn, tomatoes, watermelons, cucumbers, eggplants, and melons. Soak for 2 to 3 hours, then wash with clean water and dry in the shade before sowing. This can eliminate the bacteria carried by the seeds, promote rapid germination, and ensure uniform growth.
Spraying or root irrigation:
1. Seedling猝 dorm disease
Commonly occurs from April to June. For seedlings of pine, cedar, camphor, magnolia, mulberry, elm, eucalyptus, catalpa, birch, ginkgo, and fruit tree flower seedlings, use a 0.3% to 0.5% potassium permanganate solution at the early stage of the disease. For猝 dorm disease in melon vegetable seedlings, spray with an 800 to 1000-fold potassium permanganate solution every 7 to 10 days after emergence, and control the incidence rate to about 2% after 3 treatments.
2. Seedling wilt disease
Effective against wilt diseases in melons, beans, eggplants, and ornamental plants, better than pesticides like thiophanate-methyl and fenaminosulf. Generally, at the early stage of the disease in the field, spray the entire field with a potassium permanganate solution 800 to 1000 times diluted, applying 150 ml per plant. Repeat every 5 to 7 days for 3 times to achieve significant control.
3. Control of viral diseases
For eggplant and other solanaceous vegetables and ornamental plants at the early stage of the disease, use a 600 to 800-fold potassium permanganate solution, and for melons like zucchini, use a 1000 to 1200-fold solution. Spray the entire plant every 5 to 7 days for 3 to 4 times to control the spread of viral diseases. Note that before controlling viral diseases, it is necessary to first control piercing-sucking insects like aphids to prevent them from transmitting the virus.
4. Control of downy mildew
Potassium permanganate is more effective than pesticides like chlorothalonil and zineb in controlling downy mildew in vegetables and flowers. For example, spray cucumber seedlings with a 600 to 800-fold potassium permanganate solution from seedling stage to before fruit setting, every 5 to 7 days for 4 times to prevent downy mildew. When central diseased plants appear, spray with a 600-fold solution 3 times for good control.
5. Control of soft rot in cruciferous vegetables
For seedlings and rosette stages of ornamental kale and Chinese cabbage. Spray with a 600 to 800-fold potassium permanganate solution 3 to 4 times to effectively control soft rot and also downy mildew.
6. Control of root rot
For seedlings of cedar, pine, camphor, Paulownia, tea camellia, Chinese scholar tree, rose, rose, osmanthus, and fruit trees, apply a 0.3% to 0.5% potassium permanganate solution for spraying and root irrigation at the early stage of root rot, achieving a control effect of 91% to 95%; for root rot in seedlings of melons, eggplants, beans, vegetables, and cotton, use a 500 to 600-fold solution for spraying and root irrigation every 7 to 10 days for 3 times to control the damage.
In addition, for diseases such as cedar seedling damping-off, cryptomeria canker, citrus anthracnose, chestnut powdery mildew, and tea seedling sclerotinia root rot, spray and irrigate with a 400 to 500-fold potassium permanganate solution at the early stage of seedling disease, achieving a control effect of over 96%.
When using potassium permanganate, stir the medicine continuously to ensure it is fully dissolved, and use it immediately to prevent it from becoming ineffective if stored for too long. Also, apply the pesticide in the morning around 9 o'clock or in the afternoon after 4 o'clock. For seedlings with 7 leaves or less, rinse with water within 5 minutes after spraying to prevent phytotoxicity.
This article shares the complete content on why potassium permanganate is used when planting seedlings and its role in seedlings. Have green plant enthusiasts understood it?