Fertilizer treatment of old seedbed of vegetables

1. Formalin treatment: 2-3 weeks before sowing, the bed soil is loosened, and 40 ml of formalin per square foot of bed soil is added to 1-3 kg of water (the amount of water depends on the dryness and humidity of the soil). Pour on bed soil, immediately cover with plastic film for 4-5 days, then remove the cover, after about two weeks, until the liquid is fully volatile before planting.

2. Pharmaceutical treatment: 50% carbendazim WP, 50% thiophanate wettable powder, etc. Before application, apply 8-10 grams per square meter, add 0.5-1.5 kilograms of semi-dry fine soil and mix well into pharmaceutical soil. , Medicinal soil under the padding cover (1/3 for soil, 2/3 for cover soil).

3, ditch application or point application of soil: 70% of the original enemy powder pine 0.5 kg per mu, and then mixed with 20-25 kg of fine soil, ditch or post planting seed application.

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