1. Soil Disinfection In the summer high temperature season, 100 kg of lime and 500-1000 kg of straw are planted in each mu of protected area, and deep-buried into the soil. After filling the ridge, the water shall be filled, the plastic film shall be laid, and the greenhouse film shall be closed for 15-20 days to increase the soil temperature. Sterilize and kill nematodes at 45°C.
2. Sterilize the hole and remove the field disease before watering or before the rain. Disperse 250g of lime in the diseased hole to sterilize it. It can prevent and cure tomato bacterial wilt and ulcer disease, eggplant bacterial wilt, leek disease, melon. Diseases such as bacterial soft rot of zucchini, potatoes, celery, carrots, and clubroot and soft rot of cabbage vegetables.
3, control pests after plowing the land after spraying 25-40 kg of lime per acre, and soil drying 5-7 days, you can eliminate the harm of vegetables, a jump. On sunny days, lime is sprinkled linearly between the rows of vegetables, and 5 to 7.5 kilograms per acre can be used to control earthworms.
4. Adjusting pH of soil: Apply 100-150 kilograms of lime per mu, plough the soil into the soil and adjust the pH of the soil to prevent white waxy diseases, melon vegetables, bacterial wilt, cruciferous vegetable root club disease and tomato virus disease. , carrot bacterial rot, melon wilt, pea blight and other diseases.
5. Preparation of liquid lime and sulphur powder Preparation of lime sulfur mixture, quicklime and copper sulfate preparation of Bordeaux mixture.
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