1. Space disinfection: It should be done 7-10 days before sowing or planting. Four grams of sulfur per cubic meter, 8 grams of sawdust mixed uniformly, placed in a container to burn, the time should be carried out at 7 o'clock in the evening, smoked smoke closed for 24 hours. Can also be used per cubic meter with 25% chlorothalonil 1g, sawdust 8g mix, ignite smoke smoke disinfection.
2, facilities disinfection: scaffolding, equipment, tools and other disinfection with 1:50-1:100 aqueous formalin scrub or spray can be.
3. Soil disinfection: pesticides should be selected according to the type of pests and diseases in greenhouse soil, and be carried out 10-15 days before planting. The greenhouse with severe wilt disease can be sprayed with 100-200 times of formalin solution on the surface or in the ditch, and then covered with a film for 5 days. After half months, all the pesticides have been volatilized and ready for planting. Other diseases can be sprayed with 50% carbendazim, 50% thiophanate, or 70% of dexamethasone 1000 times, or made into toxic soil and then thrown into the soil. In greenhouses with underground pests, a certain amount of pesticides can be added to the soil.
4, ditch (Tang) disinfection: blight heavy land, before the completion of planting soil disinfection or disinfection of poor quality, can also be in the planting ditch (Tang), with 50% thiophanate 1.25 kg per mu or 50 About 0.75 kg of carbendazim or about 7 kg of pentachloronitrobenzene is disinfected. The above medicines should first be blended and mixed with 100 parts of fine powder and 100 parts of fine dry soil, then sprinkled in the planting ditch (tang).
The valve is a series of gas emergency shut off solenoid valves, specially designed as gas pipe breaker for emergency use. It can be connected with gas leaking detection sensor, fire alarm circuit or other intelligent sensor modules so that on site or remote shut down on gas supply (manually or automatically) is possible, hence ensuring the safety on gas usage. The valve features an auto-close when strong vibration is detected. After close, manual operation is required to turn on the valve. This feature meets safety regulations in the event of an accident.
Gas Cut Off Valve,Air Solenoid Valve,3 Way Solenoid Valve,Sprinkler Valve Solenoid
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