Lime is one of the common building materials in rural areas and can be used to control some vegetable pests and diseases in addition to building houses.
1, adjust the pH of the soil
Apply 100-150 kg of slaked lime per acre and turn it into the soil to prevent white waxy diseases of melon vegetables; Bacterial wilt of solanine vegetables, ginger and strawberry; Clubroot disease of cruciferous vegetables; Tomato virus disease (blunt (Tobacco Mosaic Virus on diseased soil in soil); bacterial soft rot of carrot; melon wilt disease; pea blight (stem rot).
2, point sterilization
Before irrigating the ground or before the rain, remove the diseased plants in the field, then kill 250 grams of lime or slaked lime for each diseased hole to prevent tomato blight and canker disease; blight of eggplant and ginger; cabbage vegetables Club root disease and soft rot; zucchini, potatoes, celery, carrots, etc. (bacterial) soft rot; leek white peony disease, melon disease; strawberry wilt disease.
3, soil disinfection
In the summer high temperature season, 100 kg of lime and 500 to 100 kg of straw are planted in each mu of protected area. Deeply dig into the soil, remove the water from the field, and then fill the water. Cover the membrane and seal the membrane for 15-20 days. Use solar energy and The heat generated by microbial fermentation allows the soil temperature to reach 45°C for sterilization and killing nematodes.
4, pest control
A. After plowing in the vegetable field, apply 25-40 kg of lime per acre and soak in soil for 5-7 days to eliminate the vegetables. B. Mix 90% of trichlorfon crystals with 1 part of lime, 4,000 times water, and 0.6 kg per pot of irrigating solution to prevent and control oriental marching ants. C. On sunny days, sprinkle lime between the rows of vegetables in a linear form. Use 5-7.5 kg per mu to prevent and treat jaundice.
5, preparation of liquid medicine
Lime and sulphur powders are used to formulate lime sulfur, and lime and copper sulfate are used to make Bordeaux mixture.
Note: Quicklime (calcium oxide) that has just been discharged from the kiln is white or lumpy. After water is added, it expands and disintegrates, forming a depleted (ripened) lime (calcium hydroxide).
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