All kinds of fruits and vegetables cultivated in spring often have weak light when they are planted, and the ground temperature is low. After the planting, the seedlings are slow and slow. In advance, the shed film is added to increase the heat insulation of the grasshopper. That is, when the outside temperature has risen, the grasshopper is uncovered. When the temperature in the afternoon shed reaches 30°C or above, ventilation is performed for a short time, and the opaque cover is covered at 2-3 o'clock in the afternoon to increase the ground temperature.

When the 10 cm ground temperature is stable above 12°C, it is best to start cultivation above 16°C. At the same time, it depends on the weather forecast. After the cold has been selected, it will be planted on sunny days. It is best to use small water or dark water when planting. The specific operation is to pour small water in the ditch. When the water does not completely infiltrate, put the seedlings into the cultivation ditch according to the plant spacing. After waiting for the water to completely infiltrate, bury the soil in the root base of the seedlings and cover the soil with the original seedling soil. Just cover, do not buried too deep to prevent slow seedling slow.

If the weather is foggy or cloudy when planting, you can pour burrowing water when you plant the seedlings, or ditch the seedlings into trenches without trenching, and keep the ground temperature stable for more than 15°C for 2-3 days. Choose sunny noon temperatures. When it is relatively high, seal the hole (cover groove), after 3-5 days, grow a new leaf and then pour a small amount of water to meet the normal growth and development of the crop. Spray it once before watering to prevent dead trees. To reduce the occurrence of epidemics, spray medicine must be sprayed on the front and back of the seedling blade and the base of the seedlings on the ground, spraying strict spray.

Raise the temperature in the greenhouse on or after the day of watering. In the morning, when the temperature rises to 23°C, conduct a short-term air change for 10-15 minutes. Close the vents to increase the temperature. When the temperature rises to 32°C, ventilate again. Sometimes it is When the cloudy weather temperature rises to less than 30°C, the air exchange can only be performed at noon for a short period of time. In the afternoon, when the temperature is lowered to 24°C, another air exchange is performed. The purpose is to eliminate humidity and increase the indoor carbon dioxide concentration to meet the needs of crops. Normal growth.

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Medical Isolation Shoe Covers

The medical protective shoe cover includes a coat, an inner bladder, a strap, a velcro surface, a non-slip bottom, and a velcro female surface. There is a sock-shaped inner liner that can be removed, and the anti-slip bottom is preferably provided with an anti-slip corrugated beef tendon bottom on the bottom surface; one side of the end of the strap is provided with a hook-and-loop fastener surface, and the other side is provided with a hook-and-loop fastener surface matching the hook and loop surface; the jacket Waterproof material is preferred, and elastic fabric is preferred for the inner liner; the jacket of the utility model is made of waterproof plastic material, and the anti-slip bottom surface adopts beef tendon bottom, which is strong and durable; The utility model can be reused after cleaning and disinfection, and can be used continuously after the inner tank is cleaned and disinfected; the arrangement of the straps enables the utility model to have the protection performance exceeding that of high-top shoe covers, but it is as convenient to wear as low-top shoe covers. Scope of application: used by medical personnel in medical institutions to prevent contact with potentially infectious patients' blood and body fluids, and play a barrier and protection role Instructions: Before use, unfold the isolation shoe cover, put on the shoe cover, put the socks and trousers into the isolation shoe cover, and fix it with straps. Through the actual operation of many people, it has been verified that Dongbei disposable non-woven isolation shoe covers are wear-resistant, waterproof, breathable, good isolation, and high-tube shoe covers do not slide down in one-time use. Features The product uses non-woven fabric or polyethylene film as the main raw material, which is cut, sewn into or thermosynthesized. Sufficient strength and barrier properties, provided non-sterile Product Description; This product is made of plastic film or non-woven fabric and rubber band by hot pressing. The biggest feature is that it is easy to use, and has a wide range of applications. Different materials have different corresponding functions, such as anti-skid, anti-static and dust-proof. Moreover, the price is much cheaper than the non-disposable shoe covers, and the handling is also convenient, especially the non-woven shoe covers, which can be naturally degraded. Scope of application: It is generally used by medical staff, hygienic, clean places, and laboratories. [Precautions] 1) This product is for one-time use only and will be destroyed after use. 2) This product should be stored in a well-ventilated and clean environment away from fire sources, with a relative humidity of not more than 80%, no corrosive gas, and good ventilation.

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