Respiratory disease is a common disease, frequently-occurring disease, the main lesion in the trachea, bronchi, lung and chest, lesions are more cough, chest pain, respiratory effects, severe breathing difficulties, hypoxia, and even respiratory failure and death. Due to air pollution, smoking and other factors, The chronic obstructive pulmonary disease is increasing including chronic bronchitis, emphysema, pulmonary heart disease, bronchial asthma, lung cancer, pulmonary diffuse interstitial fibrosis, and pulmonary infection the morbidity and mortality of the disease at home and abroad . Therefore, Anti-Respiratory disease drugs are also more and more attention paid by researchers. Respiratory disease have the symptoms of cough, sputum, hemoptysis, chest pain, shortness of breath and other symptoms of lack of specificity, often clinicians mistaken by people for colds, bronchitis, and severe pneumonia, tuberculosis or lung cancer and other diseases delayed diagnosis; Respiratory tract infection, to be developed to emphysema, pulmonary heart disease, respiratory failure was taken seriously, but it was too late, its pathology and physiological function has been difficult to reverse. As with other systemic diseases, careful and detailed medical history and physical examination are the basis for the diagnosis of respiratory diseases, and should be combined with routine laboratory tests and other special findings to conduct a comprehensive and comprehensive analysis. Currently the most clinical application of anti-respiratory disease drugs have the following four categories: 1. Antihistamines 2. Cough medicine 3. Bronchodilator 4. Expectorant 5. Anti-asthma drugs.
Anti-Respiratory Anti-asthma Drugs, Antitussives, Expectorants, β adrenergic receptor agonists, M Cholinergic Blockers, Phosphodiesterase Inhibitors, Anti-Respiratory Drugs,Respiratory System Diseases Treatment Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com
1. Varieties and Seedlings (1) Varieties Many early-maturing varieties with strong winter and stubborn pods are used. There are spring and summer kings, Luchunbai 1 and other varieties.
(2) Nursery generally adopts electrothermal hotbed breeding. The proportion of seedbed soil is: 7 parts of Datian soil, 3 parts of decomposed organic fertilizer, 0.5 kg of compound fertilizer per cubic meter of soil, fully mixed, and spread Seed bed for planting. One week before sowing, the seedlings were soaked in water, sowed after drying, covered with soil, and the germination temperature was controlled at 20-25 degrees Celsius. After the seeds are ejected, keep the seedbed temperature no lower than 15 degrees Celsius. In the seedling stage, if the temperature is maintained at a temperature of not less than 15 degrees Celsius, the seedlings should be exposed to sunlight as much as possible. Seedlings are generally not fertilized.
2. Soil selection and planting Before planting, the best crop is non-cruciferous vegetables. Deep plowing, drying, and spreading in time. Apply 5,000 kg of organic fertilizer per 667 square meters. Then level the floor and rake it down to prepare for ridges. In order to facilitate field management, it is best to make a ridge size of 60 cm and 40 cm. Under the ridge, 30 kg of compound fertilizer is applied per 667 square meters.
Colonization should be conducted on sunny mornings. Before planting until easing, it is required that the temperature be maintained at 20-25 degrees Celsius during the day and not less than 15 degrees Celsius at night. The seedling period is not top-dressing. After easing the seedlings, the temperature is controlled at 18-22 degrees Celsius during the day and 13-15 degrees Celsius at night.
3, watering and fertilizing In the fertilizer, water management, should take a way to promote the end, fertilizer, water attack until harvest. It is generally the first time that the seedlings are poured and the water enters from under the mulching film between the rows. It is advisable to use water to run the ridge roof. When entering the group, combined with watering topdressing once available nitrogen fertilizer, apply 15 kg of urea per 667 square meters. After entering the rosette period, topdressing with diammonium phosphate or ternary compound fertilizer, the amount of fertilizer is appropriate at 20 kg per 667 square meters. Fertilizer can be applied with water. Stop watering 10 days before harvest.
Cabbage cultivation management measures
Due to the development of facility cultivation, the production of Chinese cabbage has reached the requirements for the annual supply of the four seasons cultivation, mainly including the cultivation of spring cabbage in plastic greenhouses, the cultivation of spring cabbage in open fields, the cultivation of summer cabbage, the cultivation of early-maturing Chinese cabbage in autumn, and the cultivation of Chinese cabbage in late autumn. Take the cultivation of spring cabbage in a plastic greenhouse as an example to introduce the cultivation management technology.