1. Pay attention to calcium supplementation. After the apple blossoms and before bagging, it is the key period for apple trees to prevent bitter acne by supplementing calcium. Generally, calcium supplementation should be 2 to 3 times, with an interval of about 10 days. 2. Pay attention to phosphorus supplementation. From late May to mid-June, the new shoots stop growing, and the roots of fruit trees begin their second peak period of growth, which is the peak period of flower bud differentiation and the critical period of nutrition for fruit trees. Reasonable phosphorus supplementation can promote root growth and flower buds. Differentiation. 3. Fruit thinning in time. Timely thinning of fruits can make the fruit trees load reasonably, and the amount of fruits retained per mu should be between 11,000 and 13,000. Bagging 30-40 days after flowering, spray fertilizer before bagging. 4. Make summer cuts. In addition to removing the extra upright branches on the back, the long branches in the inner chamber, and the outer competing branches, the summer pruning also adopts various turning techniques such as topping, twisting branches, and holding branches, as well as girding and girdling. Kind of carving technology. 5. Prevent pests. From late May to mid-June, when scale insect nymphs start to crawl out of the hard shell, spray insecticide in time. Protecting natural enemies can prevent apple mites. 6. Cultivation and weeding. Intertillage can remove weeds, increase soil organic matter, improve soil fertility, and deepen the tillage layer to promote root growth. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Blood Colletion tube,Infusion set,Disposable Syringe,Insulin Syringe,gause roll,Cotton roll,Sterile Urine cup,EDTA Tubes,Plain Tube FOSHAN PHARMA CO., LTD. , https://www.fospharma.com