Cultivation and weeding is now at the time when the spring buds of the pear tree are germinating, and it is also the time when weeds break the ground. In order to prevent weeds and fruit trees from competing for nutrients, weeding and weeding should be carried out before fertilization, and weeding according to the growth law of the pear root system is conducive to the growth of new roots. Weeding can be carried out manually or chemically. Fertilize according to tree fertilization and weeding. The young trees are best applied in a thin and thin manner, using rotten human and animal dung, urea, etc., and digging the holes and recomposing the soil; the resulting tree is applied with budding fertilizer at the end of February, flowering fertilizer in mid-March, and canal or furrow application After the application, the soil should be restored in time. The time for thinning flowers and fruits is best done from the buds to the flower buds, as soon as possible. Leave an inflorescence at 25-30 cm intervals. After the inflorescences are separated, leave 3 flowers at the base of each inflorescence. Try to choose inflorescences on both sides of the branches. The amount of inflorescences left can be slightly greater than the amount of fruit retained. Fruit thinning is performed after flowering, and the amount of retained fruit depends on the variety, age and tree vigor. Each inflorescence is sparsely divided into single fruits. Fruits with a regular fruit shape, long stalks, no damage, and no pests and diseases. Try to choose the base 2 and 3 inflorescence fruits. As a result, there were more stays in the middle and lower branches, and less shoot tips; more lateral fruits and less back fruits. Scientific pollination can adopt bee pollination and artificial auxiliary pollination. For bee pollination, generally 5-7 days before flowering, bee colonies are placed in pear orchards, especially in densely planted pear orchards. The artificial pollination should be collected as early as possible, and then pollen should be removed and dipped with a brush or paper stick Pollen spotted. Pollination can begin at the first flowering stage, and 1 to 2 flowers at the base of each inflorescence point are best, and the entire flowering point is 2 to 3 times. Pest and disease control Pests that commonly occur in the pear tree and have serious damage include black streak, rust, ring disease, rot, black spot, etc., which can lead to weak growth, delayed results, decreased yield, and low fruit yield. The specific control measures are as follows: spray the 2-3 degree stone sulfur mixture once before the fruit tree sprouts, which can prevent the winter pests and diseases such as Psyllid and scale insects; in March, the flower buds are sprayed with 50% carbendazim 500 times liquid spray for control Pear solid insects, pear tigers and other bud-eating flower insects and diseases such as black stars, dark spots, brown spots, etc .; At the end of March, sprayed with a 65% solution of Zinc Zinc 500 times to prevent and cure pear fruit and flower rot; Fen Ling Ling 500 times liquid plus worm mite g 2000 times liquid spray to prevent and cure pear rust, pear psyllid, pear aphid, pear tiger, etc. Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. phone Rabies Vaccine (Vero Cell) for Human Use, Freeze-dried is a preparation of rabies fixed virus CTN-1V inoculated into Vero cell. After cultivation by bioreactor, harvest the virus suspension; further perform the concentration, inactivation, and purification. The vaccine is formulated by adding human albumin, dextran 40 and sucrose through freeze-drying process. The freeze-dried vaccine looks like a white crisp cake which turns into a transparent liquid after reconstitution, without any preservative. Active ingredient: inactivated rabies fixed virus. Excipients: Human albumin, dextran 40, sucrose, sodium chloride, potassium chloride, potassium phosphate monobasic, dibasic sodium phosphate. Diluent for vaccine: sterile water for injection. The specification is 0.5ml/vial after reconstitution. 1 vial (0.5ml) per single human dose. The vaccine titer should be not less than 2.5IU. Rabies Vaccine For Human,Human Freeze Rabies Vaccine,Human Rabies Vaccine Storage,Freeze Rabies Vaccine For Humans Changchun Zhuoyi Biological Co., Ltd , https://www1.zhuoyi-bio.com