1. Poor fertilization and fertilization: There are many mature seeds in the fruit, and the distribution of each ventricle is even, and the bias rate is low. On the other hand, if there are few seeds, the distribution is uneven and the hollow chamber is formed, the fruit's skewness is high. The amount of inflorescence leaves fruit, each inflorescence leaves a single fruit, a large fruit, fruit shape index is high; leaving double fruit is a decrease in fruit size and fruit shape index. 2, the fruit is not good: the top of the fruit that is the fruit is sagging, the highest rate of correct fruit. Otherwise, skewers are more. 3, storage nutrition is not enough: If the tree nutrient storage is sufficient, it can improve the fertilization rate of fruit, promote the development of young fruit. If the conditions of the previous fertilizer and water are good, the fruit shape is high and the pile is upright. On the contrary, skewers increased. Second, prevention of deflection measures 1. Configure pollination tree species: It is very important to plant pollination tree species. Therefore, it is necessary to reasonably configure the pollination tree species in the orchard. 2. Artificially-assisted pollination: artificial pollination is to ensure that the flowers after fertilization can be fertilized and set. Practice has proved that artificial pollination, high fruit setting rate, large fruit size, good quality, is an effective remedial measures and methods. Artificially assisted and placed bees and wall bees pollinate during flowering. 3, early sparse thinning fruit: Fuji apple self-result rate is only 1.5%, eliminating unnecessary flowers can reduce unnecessary nutrient waste of the tree, effectively increase the fruit setting rate. 4. Strengthen fertilizer and water management: Spray foliar fertilizer on leaves from June to October. The apple orchard maintains a relative soil moisture content of 60-80%. The drought can be poured and the lotus can be drained. If the moisture is insufficient, the fruit is weak, the water is abundant, the tree is easy to grow, the color is poor, and the sugar is low. Watering conditions can promote grass cultivation. Because grasses not only increase the organic matter of the soil, but also can consume too much nitrogen and water in the soil, which is beneficial to fruit coloring.
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Reasons and Prevention of Fuji Apple Deflection
First, the cause of deflection