Winter is a critical period for the growth of strawberries in greenhouses, and it is also the most intense period of temperature change. In the morning and evening, the temperature in the shed is low. In the case of fine weather, the temperature will rise rapidly during the day. Sudden changes in temperature can cause cold damage, wet damage, or dormancy, poor pollination, and create a hotbed for more disease.
Increase the transparency of the shed film. Choose a non-drip film with good light transmission. After snow, clean the snow on the shed film, and regularly clean the dust on the shed film to enhance the light and increase the temperature of the shed. .
The grass cover shed strawberry antifreeze before the cold current is approaching, adding grass hoe or corn stalk around the greenhouse at night, can increase the shed temperature 2 ° C ~ 3 ° C. When the temperature drops suddenly, you can put a layer of ordinary agricultural film or old film on the grass, which can improve the heat preservation of the grass and prevent the rain and snow from getting wet.
Multi-layer film insulation, cold and anti-freeze, double-folding film (also available as waste greenhouse film), width 1 m, sandwiched inside the first layer of greenhouse film (between steel pipe and film), if necessary, in two-layer steel frame film Add a 1 meter wide agricultural film, pull all the way around the greenhouse, can play the role of heat preservation, cold resistance and antifreeze.
Improve the insulation of the back wall of the greenhouse To improve the insulation performance of the back wall of the greenhouse, the following measures can be taken: first, increase the thickness of the wall behind the greenhouse; second, put a layer of brick on the back wall; third, build a hollow insulation wall, inside the wall The hollow part is filled with straw or polystyrene foam board; the fourth is to build a fire wall for warming, this method is suitable for cold regions.
Before the cold smoke around the greenhouse, the crop straw, firewood and so on are ignited around the greenhouse, and the smoke generated by it drives the cold air to raise the temperature around the greenhouse, thereby increasing the temperature inside the greenhouse and achieving the purpose of resisting the cold current.
When the mulch covered in the greenhouse is covered with high ridge, the mulch can be covered with mulch, which can raise the ground temperature by 2 °C ~ 3 °C, and it is also convenient for watering, but the ridge height in the dry area should not exceed 10 cm.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Medical Cold Patch
Throat Pain Relief Patch
[Name] Medical Cold Patch
[Package Dimension] 36 round pieces
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give fast acting pain relief for acute and chronic tonsillitis.
[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
The curing effect of each piece can last for 6-8 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions] Store below 30c in a dry place away from heat and direct sunlight.
Throat Pain Relief Patch,Throat Pain Relief Pad,Throat Pain Relief Plaster,Antitussive Patch
Shandong XiJieYiTong International Trade Co.,Ltd. , https://www.xjytmedical.com