Prevent and cure green rot in the greenhouse
I. Agricultural control
(1) Control the temperature and humidity in the shed. In the case of traditional ground irrigation methods, a temperature thermometer is attached to both ends of the shed, and the temperature and humidity inside the shed are periodically measured to determine the temperature of the bleed and the temperature of the curtain. During the daytime, the temperature in the shed is controlled at 23°C and 27°C. At night, the temperature is controlled at 16°C and 20°C. The relative humidity of the air is controlled at 70% and 80%. When the outside temperature is greater than 15°C, ventilation is gradually performed day and night, and the bottom wind is placed in the front of the shed, from small to large. Every two meters exposes a tuyere, and the brick is laid horizontally to support the a-shaped mouth. When the outside temperature rises to 16 °C on average, the bricks are placed horizontally (10 centimeters high). When the temperature is 19 °C and 21 °C, the bricks are placed vertically (20 centimeters high. ). As the temperature in the shed rises, the waist and top winds are released, or the shade net is covered. The ventilation must be stable and the temperature in the shelter should not fluctuate in a short period of time.
(b) Manual disinfection. In the buffer room and in front of the entrance to the greenhouse, 1.2m long and 1m wide grass mat lime disinfectant pools are constructed. Lime is sprinkled every 15 days to keep the pools moist. Into the greenhouses, the feet are disinfected through the pool to prevent external bacteria sources from being carried. Use latex gloves to pick the fruit and cut it with scissors soaked in disinfectant. Equipped with a 0.5% potassium permanganate disinfectant barrel, such as picking the diseased fruit and immediately using its disinfecting scissors and latex gloves, to prevent spread of pathogenic bacteria.
(3) Increase phosphorus and potassium fertilizers. Use 2% potassium dihydrogen phosphate solution to micro-spray the stems and leaves, 30 kg of fertilizer solution per acre, once every 7 days, in order to improve the disease resistance of plants. (D) covered grass wet. In the large rows of green pepper shop 35 cm thick wheat or wheat bran, moisture absorption dampness, reduce the humidity of the shed, inhibit the development of disease hazards.
Second, pesticide control
(1) Epidemic prevention and control. After the green pepper colonizes and survives, it is sprayed alternately with 64% antivirus 400 times, 72% metalaxyl manganese zinc 500 times, and 72% DuPont Kelu 700 times. Sprayed every 7 days. Times.
(B) Gray mold and Sclerotinia prevention and treatment. Peppers are sprayed with peppers that are sprayed with 20% of Green Emperor 400 times liquid or fast-gelling 1200 times during the period of peppers to control gray mold; spraying 40% wowing 400 times or making 100% of 100% liquid to control Sclerotinia.
(c) Prevention and control of soft rot. In the early flowering period and the post-harvest period, the condition monitoring should be strengthened. 77% of the 700 times can be used to kill and 72% of the agricultural streptomycin 3000 times can be sprayed alternately. (d) Prevention and control of anthrax. In the result phase, 75% of chlorothalonil 400 times or 70% of thiophanate-methyl 800 times was used for spraying. The disease was sprayed with a 300-times new 300,000-fold solution, and the value was not dropped. Medicine is appropriate.
(e) Prevention and treatment of cotton rot. Sunny days can be sprayed with 64% of the anti-virus 400 times liquid. When it is cloudy or rainy (greater than 85%), it is fumigated with 20% slow-drying moxa, 250300 g/mu, and closed in the evening. Ignite the medicine and vent it after the sunrise on the next day to enter the shed.
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