Fertilization techniques of Big Cherry

The main fertilization techniques and methods of big cherry are as follows: first, fertilization technology 1. The application of base fertilizer in autumn is generally carried out in late August. The application of base fertilizer in autumn is in the peak of root growth in autumn, which is beneficial to the absorption of nutrients, at the same time, root injury can also be well recovered, and is beneficial to multiple roots. fertilization can exert fertilizer effect and increase nutrition reserve before overwintering. The types of base fertilizer applied in autumn are: farm fertilizer, cake fertilizer and appropriate amount of nitrogen, phosphorus and potassium compound fertilizer. Farm manure is mainly fermented pig manure, cow manure, horse manure and chicken manure. 2. The topdressing period of topdressing cherry. Topdressing is divided into four stages: pre-sprouting topdressing, mainly organic calcium fertilizer and boron fertilizer; pre-anthesis topdressing, mainly quick-acting high-nitrogen and high-potassium nitrogen-phosphorus-potassium compound fertilizer; young fruit expansion stage, high-speed high-nitrogen and high-potassium nitrogen-phosphorus-potassium compound fertilizer; after fruit harvest, organic-inorganic compound fertilizer. 3. Extra-root topdressing is generally carried out 3-4 times a year, after falling flowers to before harvest, combined with spraying, spraying 1000 times vitality element plus 0.3% urea solution, or spraying "lion horse green" foliar fertilizer 1500 times in the early stage; spray 1000 times activity element plus 0.3% potassium dihydrogen phosphate solution in the later stage, or spray 1500 times "lion horse gold" foliar fertilizer. Second, fertilization method 1, radial ditch fertilizer. Suitable for topdressing. With the trunk as the center, 4-6 radial trenches were dug 0.5-1.0 meters away from the trunk, which were longer than the outer edge of the crown. The groove is 15-20 cm deep and 20-30 cm wide. 2. Strip ditch application. It is suitable for applying base fertilizer. Ditching and fertilization was made at the outer edges of the corresponding canopy. The trenches in one direction are used alternately every year. When applying base fertilizer in autumn, the trench is larger, generally 30-40 cm. 3. Ring ditch application. Digging a ring-shaped trench around the crown, this method is suitable for young trees with small root distribution. 4. Give something. It is suitable for topdressing young trees and tree plates covered with plastic film. Only when the above methods are used alternately, the distribution range of fertilizer can be applied, which is beneficial to the absorption of roots. Care should be taken not to hurt the main root when digging trenches.