In order to keep the foliage plants native to the tropical and subtropical regions green and vibrant in winter, the following points should be achieved: 1. Warming and freezing The different minimum temperature requirements for different foliage plants in winter are different, and the differences are relatively large. The cold resistance of different species of the same species is also significantly different. Therefore, according to the different regions, plant species and varieties, batching, classification into the room through the winter. Warming and freezing protection is an important maintenance work for the foliage plants to safely pass winter. According to the different requirements for the overwintering temperature of the foliage plants, the author believes that they can be divided into four categories and take different measures to keep warm and prevent freezing. In the first category, the foliage plants whose wintering temperature cannot be lower than 5oC, such as asparagus, mosaic ivy, goose palm autumn, octagonal gold plate, mosaic leaves, jellyfish, cold water flower, and persimmon, these plants have certain The ability to resist cold can be safely overwintered under normal cold protection facilities. It can also be used in single-layer plastic greenhouses or general greenhouses. The second category, the foliage plants can not be lower than 8oC, such as swallow palm, saxifrage, jade emperor, fish maid, Buddha belly bamboo, red nest fern and so on. There is a certain degree of cold resistance, but in the coldest it should be covered with a plastic film in a greenhouse or room. The third category, can not be less than 10oC of the foliage plants, such as asparagus, spider plant, watercress green, mosaic, red feather bamboo, green radish, Xianglong blood trees, Araucaria, Fortune bamboo and so on. Once in the winter, it should be placed in a two-story plastic greenhouse or covered with a layer of plastic film in the greenhouse. In the fourth category, the foliage plants can not be lower than 15oC, such as D. oleifera, C. oleifera, C. reticulata, P. opacifera, and Boston fern. The temperature requirement for overwintering is relatively high and it is best to place it in a greenhouse with heating equipment. If there is no warming condition, it can be placed in a two-story plastic greenhouse. The southern conservation should be between 3 pm and 9 am the next day. A plastic film should be placed on the top of the foliage plant. The next day is 9:00. After the opening. Second, appropriate watering After the winter, the growth of the foliage plants is basically stagnant. Some plants enter the dormancy stage and the water absorption capacity is greatly reduced. Watering should not be excessive or excessive. Water should be poured in one time before entering the shed or entering the room. During the shed, the pot should be kept as slightly dry as possible to facilitate the overwintering of the foliage plants. When the potted soil was found to be dry, it should be watered at 11 o'clock on a sunny day. Avoid excessive water or water in the morning and evening. Water temperature should be similar to room temperature, and the temperature difference should not be too large. The foliage plants usually water once every two months in winter, and too many of them can easily cause root rot. In the winter, the indoor air in the north is dry. Plants such as peacock and bamboo shoots need to be sprayed with cold water during the day to increase the indoor humidity and maintain their beautiful leaf color. During the wintering season, when the sea otters spray warm water every 3-5 days, they can be kept. Leaves dark green; mosaic evergreen, winter spray 2-3 times a week to wash the leaves of warm water dust, increase indoor air humidity, bright and strong color patches. Third, ventilated and breathable foliage plants in the shed or indoor winter, need a certain amount of air humidity, but it can not be too high. Therefore, it is necessary to open doors and windows in the sunny days to adjust the air humidity, especially the air humidity in the plastic greenhouse is higher, and more attention should be paid to ventilation. Ventilation should normally be after 9 a.m. to 3 p.m. It is also very important for the winter to support the foliage plants. In winter, the sunlight is oblique, and the intensity of light is half of the summer. For some large-sized Xiyang woody foliage plants, they should be placed on the outside of the shed, such as Xianglong Blood Tree and Fishtail. Kwai, rubber trees, changye wood, etc. Under sufficient light, the foliage plants also become thin and yellow in winter. For some small herbaceous foliage plants, they should be placed in high places, such as asparagus, clover, etc., shade-tolerant and semi-shade foliage plants can be placed in the middle, such as green dill, palm, divisee, turtle Back bamboo, bamboo, cold water, jellyfish, zhuju, etc., these plants also need a certain amount of light in the winter, due to the humidity in the shed, such as the frequent lack of light will cause pests and diseases, so during the winter to "convert" position, Make sure the foliage plants are safe for the winter.
Most products of Fluorine-Containing Benzaldehyde are a pale yellow liquid. They are playing an important role in fine chemical intermediates, is used as the main raw material for the synthesis of a variety of pesticides, pharmaceuticals, surfactants, polymer monomer mildew. As used in medicine synthesis antihypertensive drugs, antipyretic analgesic anti-inflammatory drugs, anti-cancer drugs, muscle relaxation drugs for synthesizing fluorine cypermethrin, fluorine chlorobenzene daisy cool in pesticides, fluoride and styrene, wherein the polymer of styrene monomer to fluorine can be widely used in the manufacture of the recording material, a thermoplastic resin coating, liquid crystal materials. Currently new miticide is effective pesticide products which is the main raw material of Fluorine-Containing Benzaldehyde.
Fluorine-Containing Benzaldehyde
Containing Benzaldehyde,5-Dichlorobenzaldehyde,3-Bromo-5-Fluorobenzaldehyde
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