What are the key technical points for summer management of apple orchards?
Apples are very common in our lives, and they are very rich in nutrients and favored by many people. Now apples are planted all over China, and when growing apples, we must reasonably adjust the management methods of apple trees according to seasonal changes. Especially in summer, so how should we manage apple orchards in summer? Below, the editor brings you the key technical points for summer management of apple orchards. Let's take a look!.
1. Watering management
In summer, because the temperature is too high and water evaporates quickly, apple trees have a very large demand for water in summer. Therefore, we must water in time, but we must pay attention to controlling the watering method and must not use flood irrigation, otherwise it is easy to cause excessive vegetative growth of apple trees. Moreover, if the soil moisture content is too high, it will cause oxygen deficiency in the roots of apple trees and cause the death of fibrous roots. So when watering apple trees, we should mainly use small amounts of water and follow the principle of watering more frequently but in small amounts. Control the amount of watering according to weather changes and tree vigor conditions, ensuring that the water demand of apple trees is met without affecting normal growth.
2. Fertilization management
The growth of apple trees also has a relatively large demand for nutrients, and when planting, we should combine fertilization with watering. But we must also control the amount of fertilizer. If too much fertilizer is applied and there is too little water, then it is easy for the trees to survive; on the contrary, the growth of new shoots makes it difficult to form flower buds. When fertilizing, we must control the type of fertilizer and the amount applied. If fertilization is improper, the impact on apple trees is very great. For example, when applying fruit-swelling fertilizer, if high-nitrogen and high-potassium fertilizer is used together with flood irrigation, then the flower bud differentiation of the fruit trees will be harmed, and the phenomenon of large and small fruits will appear. Not only will the yield be affected, but the quality will also decline as a result. Therefore, summer fertilization should mainly be phosphorus and potassium fertilizer, combined with an appropriate amount of low nitrogen and trace elements.
3. Weed control management
In summer, fruit growers will bag the fruit, but many fruit growers will carry out selective tillage and weeding in the orchard after bagging. In fact, during the growth period of apple trees, deep turning of the tree basin will affect the shallow absorbing roots of the fruit trees. This prevents them from playing their proper role, and flower bud differentiation is hindered. Moreover, summer temperatures are too high, and the respiration capacity of roots and leaves will also increase. The temperature in orchards with grass is far lower than in clean-tilled orchards. In summer, orchard weed control should mainly be no-till grass growing. When the weeds grow too tall, they can be cut down and then covered under the tree basin, where they can serve as organic fertilizer.
4. Branch thinning management
Summer pruning is very crucial for the flower bud formation of apple trees. However, many fruit growers do not pay attention to controlling the target in summer, and prune new shoots indiscriminately. Their original intention is to improve the light conditions of the tree body, but in fact it has a great impact on the root-crown balance relationship of apple trees. This causes branch leaves to be sunburned and young fruits to suffer sunscald, affecting the flower bud differentiation of apple trees. When doing summer pruning, we should pay attention to appropriately thinning out some water sprouts and overly vigorous branches, and properly twist the tips, remove the terminal buds, and promote the sprouting of new buds.
The above is a brief introduction to the key technical points for summer management of apple orchards. The summer management work of apple orchards is very important and is closely related to yield and fruit quality, so everyone must pay more attention. That is all for today's introduction. This article is for reference only, and I hope it can be helpful to everyone!