1. physiological fruit drop: apricot trees may have physiological fruit drop during their growth, which is caused by poor flower bud quality, poor pollination and fertilization, and lack of trace elements in the soil.
2. Climatic factors: If it encounters a low-temperature climate when flowering, it may affect the normal growth of apricot trees and lead to a decline in fruit setting rate.
3. Improper cultivation: improper orchard management, such as extensive cultivation, excessive pruning, partial application of nitrogen fertilizer, excessive watering, etc. , may make the tree weak, thus affecting the fruit setting rate.
4. Pests and diseases: Apricot trees are prone to pests and diseases, such as aphids, mites, sarcoptes, etc., which will affect the normal growth and fruit setting of apricot trees.
In order to improve the fruit setting rate of fragrant apricot, the following measures can be taken:
1. Strengthen orchard management: intensive cultivation, rational fertilization, control watering, maintain tree vigor, and improve plant stress resistance and fruit setting rate.
2. Improve the quality of flower buds: through reasonable pruning and cultivation of branches, improve the quality of flower buds and increase the fruit setting rate.
3. Create good pollination conditions: release bees, artificially pollinate at flowering stage, ensure pollen spread, and improve the success rate of pollination and fertilization.
4. Pest control: Strengthen pest control, take timely measures to control the disease development and protect plant health.
To sum up, in order to improve the fruit setting rate of Hexiang apricot, it is necessary to comprehensively consider various factors and take corresponding management and protection measures.