Tomatoes, cucumbers, and melons are delayed in autumn cultivation. The seedling stage is often in the hot and rainy summer, and the disease in the seedling stage is heavier. Therefore, the bed soil should be disinfected.
2 to 3 weeks before sowing, the bed soil is loose, and the bed soil per square meter is filled with 1.5 kg of formalin and 2 to 6 kg of water (depending on the dry moisture of the soil), and poured on the bed soil. Immediately cover with plastic film for 4 - 5 days, then remove the cover, after about two weeks, until the liquid is fully volatilized before sowing.
Apply 50% seed dressing powder to 7g or 58% metalaxyl per square meter of seedbed, 6g of manganese-zinc wettable powder to 8-10 pounds of fine soil, or 70% pentachloronitrobenzene wettable powder. Or 50% Fumei double wettable powder mixed in equal amount, or 50% carbendazim wettable powder, or 50% tobuzin wettable powder 8-10g, add fine soil 3-8 kg and mix well. Before applying the pesticide, the bottom water of the seedbed should be well-grounded, and once poured, usually 17-20 cm deep. After the water has been infiltrated, take 1/3 of the well-mixed soil and sprinkle it on the surface, and then put the rest after sowing. Two-thirds of the soil is covered on the seed, that is, the upper pad is covered. If the thickness of the covering soil is not enough, the soil can be replenished to a suitable thickness, so that the seed is sandwiched in the middle of the soil, and the effect is obvious, and the effect can be as long as one month.
2 to 3 weeks before sowing, the bed soil is loose, and the bed soil per square meter is filled with 1.5 kg of formalin and 2 to 6 kg of water (depending on the dry moisture of the soil), and poured on the bed soil. Immediately cover with plastic film for 4 - 5 days, then remove the cover, after about two weeks, until the liquid is fully volatilized before sowing.
Apply 50% seed dressing powder to 7g or 58% metalaxyl per square meter of seedbed, 6g of manganese-zinc wettable powder to 8-10 pounds of fine soil, or 70% pentachloronitrobenzene wettable powder. Or 50% Fumei double wettable powder mixed in equal amount, or 50% carbendazim wettable powder, or 50% tobuzin wettable powder 8-10g, add fine soil 3-8 kg and mix well. Before applying the pesticide, the bottom water of the seedbed should be well-grounded, and once poured, usually 17-20 cm deep. After the water has been infiltrated, take 1/3 of the well-mixed soil and sprinkle it on the surface, and then put the rest after sowing. Two-thirds of the soil is covered on the seed, that is, the upper pad is covered. If the thickness of the covering soil is not enough, the soil can be replenished to a suitable thickness, so that the seed is sandwiched in the middle of the soil, and the effect is obvious, and the effect can be as long as one month.
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