1. Moisture control and prevention of cracking The soil moisture should be kept at 70% -80% at all times, and it should not be dried and wetted suddenly, which will cause the peel pressure of the peel to be different from the inside and outside. The anti-crack fruit phenomenon differs between varieties. Preventive measures: â‘ Choose anti-crack varieties; â‘¡Foliar spray with calcium, spray 600 times of amino acid water-soluble fertilizer + calcium 4 times after foliar spray to before harvest; â‘¢Don't flood irrigation with small water. 2. Cherries enhance tree nutrition The fruit begins to swell 4-6 days after flowering, and foliar fertilizer should be sprayed. After 15 days, spray potassium dihydrogen phosphate and fertilizer. In the stage of rapid expansion of the fruit after the cherry hard core, combined with watering, 30 kg of ammonium carbonate + 10 kg of potassium nitrate per acre were applied twice in a row. Not only is it big, but also colorful and bright. Aiming at the rule that the weak trees have more fruit and the more trees have less fruit, other agronomic measures such as nitrogen fertilizer application can be used to cultivate robust trees. Three, control the top During the young fruit stage of cherry, the three physiological changes of fruit development, shoot growth, and flower bud differentiation proceed simultaneously, resulting in intense competition for nutrients. In order to reduce the competition for young fruit nutrients, Wang Shao should topple in time and leave 5 to 6 leaves. Fourth, control output For high-quality cherry production, the output should be controlled at 750 kg per mu. And watering soon after flowering will affect fruit setting. Tests have shown that watering on the first day after flowering can save about 80% of the original fruit amount of the tree during flowering. Each time the watering is delayed for one day, the fruit setting decreases by 10% to 15%. Therefore, according to the target yield, the watering time after flowering should be selected to adjust the amount of fruit set in the tree. V. Fruit preservation measures During the fruit expansion period, premature senescence of young fruit often occurs, and a large number of willow fruits with nuclear softening will appear, and the fruit will not shrink. Before the hard core of the fruit, it should be watered timely and appropriately according to the soil moisture. In this period, you can spray biocide + high-quality potassium dioxygen phosphate to prevent perforation and supplement nutrition to prevent fruit drop. Ripe cherries are susceptible to bird damage, and each orchard should choose appropriate bird control measures according to the conditions of their facilities, including pulling bird nets and tree scarecrows. If there are birds in the shed, firecrackers can be used to expel the birds. Pick the fruits in time after they are ripe. 6. Fruit fly control Use the tendency of adult Drosophila melanogaster to formulate a decoy to trap and kill adults, so as to achieve the purpose of controlling pests. While taking control on the tree, spray 1000 times solution of pure plant insecticide Qingyuanbao (0.6% bitter lactone) water solution on the tree, and spray again every 10 days or so. Add the prepared 3% sweet and sour liquid to the spray liquid. When spraying, each tree focuses on the inner bore. Spray the non-pollution pesticide pesticides on the ground of the orchard and overgrown weeds; re-spray the above pesticides every 10 days after the first application. The selected pesticides are 2.0% avermectin 4000 times, 4.5% larvae net 1500 times, 40% lysben 1500 times. When spraying, spray only the overgrown areas of the weeds. No spraying is required if there is no grass surface. 3% sweet and sour liquid is also added to each spray liquid. 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 Collapsible Foot Spa,Foot Spa Bath Massager,Foot Bath Spa Massager,Foot Soak Tub Huaian Mimir Electric Appliance Co., LTD , https://www.footspamachine.com
Key points of cherry management in May