â— Principle
Keep the temperature of day and night in the greenhouse of strawberry within a reasonable range and prevent it from falling.
â— Measures
In March, the weather is warming rapidly. During the day, the light is adequate and the temperature is high. In the greenhouse, it can generally reach 28°C to 30°C at 10:30 in the morning. Attention should be paid to timely release of air and prevent temperature barriers.
At this time, the principle of releasing air is "small-large-small-closed", and the outlet of the air is gradually opened and gradually narrowed. The purpose is to maintain a steady temperature change in the greenhouse and prevent the temperature from being fluctuating. Flash seedlings.
At this time, we must also pay attention to the night temperature in the greenhouse not too high, to prevent strawberry dumplings "being long", grasping the temperature at the end of the evening must be set at 10 °C and then letting go. If the temperature does not drop and the night temperature is still high, you can adopt a method of keeping a small tuyere when you let go.
Fluorine-Containing Phenylamine
Most of the Fluorine-Containing Phenylamine products are a light yellow oily liquid, relatively high density, insoluble in water. Most of them are used in the manufacturing of pesticides and dye intermediates, small part of them can be used as an analytical reagent. The steam or smoke of fluorine-containing phenylamine series is irritated to eyes, mucous membranes and upper respiratory. Vapor and air can form explosive mixtures, in case of fire, high-heat combustion caused the explosion. And oxidant may react. Decomposition by high fever and emit toxic gases. In case of high fever, increased pressure within containers, cracking and the risk of explosion. Protective measures must be done carefully during product storage. Once the fire occurred, it must be immediately evacuated from air leakage,personnel to a safe area, prohibit access to the contaminated area. Recommended emergency personnel wearing self-contained breathing apparatus and wear chemical protective clothing. In the ambulance personnel to ensure proper safety measures, immediately use foam, carbon dioxide, dry, sandy soil to put out a fire.
Containing Phenylamine,2-Bromo-4-Methoxy-Phenylamine,5-Fluoro-2-Iodoaniline
Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com