Apple tree management catches six points by May
1. Pay attention to the calcium supplementation of apple trees after flowering and before bagging. It is a critical period for apple trees to prevent bitter pox through calcium supplementation. Generally, calcium supplementation should be 2 to 3 times, with an interval of about 10 days. 2. Fruit thinning in time can make the fruit trees load reasonably, and the amount of fruit per mu should be 11,000 ~ 13,000. Bagging 30 to 40 days after flowering and spraying fertilizer before bagging. 3. Note that phosphorus supplementation starts from late May to mid-June, the new shoots stop growing, and the root of the fruit tree begins to grow for the second peak period, which is also the peak period of flower bud differentiation, and is also the nutrition critical period of the fruit tree. Promote root growth and flower bud differentiation. It is recommended to use high-phosphorus (10-52-10 + TE) water-soluble fertilizer, real materials, good quality and low price. 4. Make summer shears. In addition to removing the excess upright branches on the back, the long legs with the inner bore and the peripheral competition branches, the young and prosperous trees also need to adopt a variety of redirection techniques and rings such as topping, twisting and taking branches. Cutting, ring stripping and other cutting techniques. 5. Cultivation and weeding Cultivation can remove weeds, increase soil organic matter, improve soil fertility, and deepen the cultivation layer to promote root growth. 6. Prevention and control of insect pests When the scale insects nymphs start to crawl out of the hard shell, spray insecticide in time. Protecting natural enemies can prevent apple mites. The six-pointed thrips, small bugs, black ladybugs, predatory mites and lacewings are the main natural enemies of pest mites. When there are many natural enemies, there is no need to spray insecticides and acaricides. It is recommended to let the orchard grow grass naturally and regularly cut it manually to enrich the natural enemies to control the mites. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone Guangdong Widinlsa International Co.Ltd , https://www.gzwidinlsa.com