Gray mold is an important disease in the production of vegetables in winter and spring, mainly affecting tomatoes, peppers, cucumbers, zucchini, leeks, lettuce and so on. Botrytis cinerea is a typical low-temperature and high-humidity disease with a moderate temperature of 18 to 23 ° C and a relative humidity of 90% or more. The environmental conditions of low temperature and high humidity in winter facilities are conducive to pathogen infection, especially after watering, which is more likely to aggravate disease epidemics, and has a great impact on vegetable yield and quality. The prevention and control of vegetable gray mold in winter facilities should coordinate the use of agricultural control, physical control and biological control technology to reduce the occurrence degree. Apply chemical pesticides to control hazards during critical periods, minimize the use of chemical pesticides, and ensure the safety and quality of facility vegetables.
Agricultural control: selection of disease-resistant varieties, rotation for replacement, rational water and fertilizer, and fitness cultivation. Planting tomato red hard fruits that are more resistant to disease; changing crops that are less susceptible to gray mold for more than 3 years. Use film immersion or drip irrigation, watering on sunny days, avoid flooding with large water, and timely ventilation and dehumidification after watering. Reasonable close planting to prevent excessive density, resulting in poor ventilation in the middle and lower parts; timely pruning, picking up the lower old leaves and diseased flowers, diseased fruits, diseased branches and leaves, bringing out high temperature stacking or deep burial outside the shed to reduce infection source.
Physical control: implementation of high temperature shack soil disinfection. After harvesting the scorpion, the diseased body is removed, and in the summer high temperature season, the soil is combined with the soil preparation, and the chicken manure and the soil mixed fertilizer are applied to the soil. After filling the water, the mulch is covered and compacted, and the shed is sealed for about 30 days. The seriously ill field can be disinfected by lime nitrogen high temperature suffocation. In summer, the high temperature is applied with 50-70 kg of lime nitrogen and 600 kg of straw per acre. The soil is deeply ploughed, so that the lime nitrogen and the surface layer of 10 cm soil are evenly mixed. The water content of the soil is more than 70%, and the surface is covered with a transparent film. The pressure is tight, the greenhouse is warmed up, and the film is ventilated and ventilated for 15 to 20 days. After ploughing the soil and drying it for 10 days, it is sown or transplanted. Regulating temperature and humidity creates adverse conditions for gray mold. In the winter, the wind is released for 30 minutes in the morning, the humidity is reduced to below 75%, and then the shed is closed. The temperature in the shed rises to 30 degrees and then the small wind is placed. The temperature is controlled at 28 to 32 degrees. In the afternoon, the ventilation is increased. Control to below 70%.
Biological control: use bio-pesticide to prevent and control gray mold. In the early stage of the facility vegetable gray mold, 150 grams of 10% polymycin-resistant wettable powder per acre, or 300 million CFU/gram of Trichoderma harzianum 150 grams, or 100 billion spores/gram of Bacillus subtilis 600 grams, or 1 100% of the sulphonic acid suspension agent is sprayed evenly with water from 20 to 30 kg.
Chemical control:
(1) Smoke method. In the early stage of the disease, use 45% of 5% chlorothalonil smog, or 20% of 20% Pythium and chlorothalonil smog, or 15g of 15% bacterio-bacteria, and put it in 4 to 5 places in the shed. In the evening, the smoke was ignited in the closed shed for 1 night, the morning was ventilated, and the smoke was smoked once every 7 days.
(2) Spray method. In the initial stage of the disease, use 25% Pythium·Fumei double suspending agent 150g, or 43% procymidone suspension 150g, or 50% iprodione suspension 50-100g, or 22.5% picoxystrobin suspension 30 ~ 40 grams, or 20% pyrimethanil suspension 150 grams, or 50% boscalid water dispersible granules 50 grams, or 50% prochloraz manganese salt wettable powder 30 ~ 40 grams, or 25% pyridine 80 to 100 ml of oxazole cream, or 30 g of 50% fluazinam water-dispersible granules, evenly sprayed with water of 20 to 30 kg; or 50% of phoricidal wettable powder with 100% or 0.5% of coumadan wettability Powder 1000PPM, or 50% cyprodinil water dispersible granules 500PPM evenly sprayed, the amount of liquid sprayed per mu is 20-30 kg.
After the medicine, timely ventilation and dehumidification, to avoid increasing the humidity in the shed due to the application of drugs; adhere to the rotation of drugs and alternate medication; to ensure that the drug is safely collected after the interval to ensure that vegetable pesticides do not exceed the standard.
More pesticide knowledge , please pay attention to China Pesticide Network
The In-Wall Bidet Frame is a sturdy iron frame specifically designed to provide support for wall-mounted bidets. By fitting into the wall, it effectively conceals the bidet's tank and plumbing, resulting in a modern and streamlined appearance for the bathroom.
Beyond its aesthetic advantages, the in-wall bidet frame offers several functional benefits. One of its primary advantages is the enhanced support it provides for the bidet fixture. This is particularly beneficial for larger individuals or those with limited mobility, as the frame ensures a stable and secure installation. The added support contributes to a comfortable and safe user experience.
The in-wall bidet frame is also height adjustable, allowing for customization to accommodate individual preferences and needs. This feature ensures that users can set the bidet at a comfortable height, promoting optimal usability and convenience.
Moreover, the space-saving design of the in-wall bidet frame is highly advantageous, especially in smaller bathrooms where floor space is limited. By fitting into the wall, the frame eliminates the need for additional floor space, effectively maximizing the available area. This can be particularly valuable for compact bathrooms, as it allows for a more efficient utilization of the available space.
In addition to space-saving benefits, the design of the in-wall bidet frame also facilitates easier cleaning and maintenance. With fewer exposed areas and nooks, there are fewer spaces for dust and grime to accumulate. This simplifies the cleaning process and helps maintain a hygienic environment.
In Wall Bidet Frame, Wall Hung Bidet Frame, Wall Hung Bidet Holder, In Wall Bidet Holder
Guangdong Fabia Intelligent Technology Co., Ltd , https://www.smartfabiatoilet.com