Six methods for disinfecting nutritious soil of vegetable seedbed

First, the seed bed soil disinfection method. It is to disinfect all the bed soil. This method is to add formaldehyde, methyl bromide, chlorinated bitter and other chemicals into the soil to seal and fumigate. The sterilization is relatively complete. In addition to killing the bacteria in the soil, it can kill the nematodes and grass in the soil, but it also kills. The beneficial microorganisms in the soil. Therefore, this method is used when soil pests and diseases are particularly severe. Second, before sowing, cover the soil and Jin Lei Duomi mixed uniformly, the amount of soil per square meter seedbed plus Jin Lei Duomi 5 ~ 7 grams. Then 1/3 of the medicinal soil was spread on the seedbed and the remaining 2/3 of the medicinal soil was evenly covered on the seed. It has good control effect against common blight and damping-off diseases at the seedling stage. Third, for every 1,000 kg of nutrient soil, use 40% formalin 250 grams, 60 kg of water sprayed and mix well, covered with plastic film for 24 hours, uncover the film for 10 to 15 days to sow. Four, per square meter seedbed with 50% of carbendazim 8-10 grams and the amount of fine soil and mix. Take 2/3 of them to spread on the bed to make up the soil, and the other 1/3 is mixed into the cover after sowing. 5. Use 70% of the enemy's pine powder 0.5 kg mixed with 20 kg of fine soil, mix and sprinkle on the surface of nutritious soil, and soak the soil after sowing. Sixth, with 25% of the 50 grams of Rhizoctonia 50 kg of water, mix and then spray 1,000 kg of nutrient soil, mixing while spraying uniform, stacked 1 hour after the seedbed can be sown.

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