First, thinning flowers and fruits is essential. When the tree has too many blossoms, it can lead to poor nutrient distribution and metabolic issues. During the period of rapid fruit growth or just before maturity, if the tree lacks sufficient nutrients, it may result in a significant number of fruits falling off. Therefore, scientifically managing flower and fruit thinning is one of the most effective ways to prevent excessive fruit drop.
Second, applying fertilizer around the base of the tree can help. Based on the soil fertility and the tree's nutritional status, nitrogen, phosphorus, and potassium fertilizers should be applied 20 to 30 days before the physiological fruit drop occurs. Using high-quality organic fertilizers is particularly recommended as a preventive measure.
Third, foliar spraying is an efficient way to quickly supply nutrients to the tree and reduce fruit loss. When the tree is approaching the physiological fruit drop phase, it's advisable to spray 2 to 3 times. To also improve fruit quality, a solution of 0.5% urea and 0.4% potassium dihydrogen phosphate can be used for foliar application.
Fourth, using plant growth regulators can also be beneficial. Before the physiological fruit drop occurs, apply a solution of 20 to 40 ppm naphthalene acetic acid every 10 to 15 days, repeating this 2 to 3 times. This method can effectively control fruit drop, but it works best when combined with proper nutrition. It is less effective for fruit drop caused by other factors such as disease or environmental stress.
In addition to these methods, maintaining good orchard hygiene, ensuring proper irrigation, and monitoring pest activity are also important practices that contribute to reducing fruit drop and improving overall tree health. Regular observation and timely intervention can make a big difference in the success of your fruit production.
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