It is expected that this winter is very cold. What should be paid attention to in orchard fertilization?

This winter may be very cold. To avoid freezing damage, it is recommended that fertilization be used to enhance the tree's resistance to stress, that is, to increase the storage and nutrient levels of the tree. One is to apply fertilizer as soon as possible after fruiting in autumn. In the fall, the soil temperature is higher and the soil moisture is better. At this time, fertilization is conducive to promoting new roots and is conducive to the decomposition and absorption of organic fertilizer. In the fall, the body weight of tree body for storage base fertilizer was 1.5 to 3 times higher than that in the autumn, which not only improved the stress resistance of the tree, but also promoted the development of flower buds, was conducive to fruit set, fruit enlargement, etc., and could increase production by 14% to 30%. Significantly improve quality. Second, urea water was sprayed three times on the leaves before the leaves fall, and the concentration was low and high before.

Plant Extract

Plant extracts are substances extracted or processed from all or a part of plants as raw materials using appropriate solvents or methods, which can be used in the pharmaceutical industry, food industry, health industry, beauty industry and other industries. Plant extracts mainly take plants as raw materials, according to the needs of the use of the extracted final products, through the process of physical and chemical extraction, extraction and separation, directional acquisition and concentration of one or more effective components in plants, without changing the structure of its effective components and the formation of products. According to the different components of extracted plants, glucosides, acids, polyphenols, polysaccharides, terpenoids, flavonoids, alkaloids, etc.; According to different characters, it can be divided into vegetable oil, extract, powder, lens and so on. The plant extract industry has developed in the last 20 years and is used in the pharmaceutical, fine chemical and agricultural industries.

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