When the temperature drops below 0°C, the strawberry in greenhouses should be well protected against freezing:
Double-layer membrane insulation antifreeze can increase the endometrium in the greenhouse, and the inner membrane can be used in the old film used last year. When the temperature drops below 5°C, it must be covered with double-layer membranes.
Place the stove in the shed to warm up. When the temperature drops below -3°C, place a stove in the greenhouse to heat it up. The number of stoves is determined by the size of the shed to maintain the temperature in the shed above 0°C, but it must be noted. Safety, warming people must leave the shed, the next day the film must be lifted from the shed to start the film, timely open shed ventilation. Conditions can be increased by heating facilities such as infrared lamps.
Appropriate irrigation plus strong cold air outside the roots before the advent of the greenhouse, proper irrigation and spraying of phosphorus, potash, etc., can enhance the ability of plants to resist cold and reduce the damage caused by freezing damage.
For the treatment of diseases of the respiratory system:
Diseases and conditions of the respiratory system fall into two categories: Viruses such as influenza, bacterial pneumonia and the new enterovirus respiratory virus that has been diagnosed in children; and chronic diseases, such as asthma and chronic obstructive pulmonary disease (COPD). According to Dr. Neal Chaisson, who practices pulmonary medicine at the Cleveland Clinic, there is not much that can be done for viral infections but to let them run their course. "Antibiotics are not effective in treating viruses and the best thing to do is just rest," he said.
COPD is the intersection of three related conditions - chronic bronchitis, chronic asthma and emphysema, Chaisson told Live Science. It is a progressive disease that makes it increasingly difficult for sufferers to breath.
Asthma is a chronic inflammation of the lung airways that causes coughing, wheezing, chest tightness or shortness of breath, according to Tonya Winders, president of the Allergy & Asthma Network. These signs and symptoms may be worse when a person is exposed to their triggers, which can include air pollution, tobacco smoke, factory fumes, cleaning solvents, infections, pollens, foods, cold air, exercise, chemicals and medications.
Lung cancer is often associated with smoking, but the disease can affect non-smokers as well. Every year, about 16,000 to 24,000 Americans die of lung cancer, even though they have never smoked, according to the American Cancer Society. Like all cancers, lung cancer is caused by the uncontrolled growth of abnormal cells.
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