Jujube fruit cracking occurs in the autumn fruit ripening period. Jujube fruit is easily rot after getting sick, and the fruit loses its commercial value, which directly affects the economic benefits of jujube farmers. To prevent jujube fruit cracking, we must start hands early. First, the symptoms When the fruit is nearly mature, a long seam is cracked longitudinally on the fruit surface, and the flesh is slightly exposed. As a result, the fruit cracks and rots and becomes acid and cannot be eaten. After fruit cracking, it can easily cause invading anthrax and other pathogens, thereby accelerating the decay of the fruit. Second, the incidence of the law Fruit cracking is a physiological disease that usually occurs during the ripening period of the jujube fruit to the coloring period. Rainfall during this period will directly affect the degree of cracking of the fruit. If the climate is dry and there is no rainfall during the first month of harvesting, fruit cracking does not occur in general; if the young fruit develops arid and rainy, and enters the white ripening period or the coloring period, it suddenly encounters heavy rain, then there will be large areas of cracks, and cracks Deeper; if you drop several light rains before harvesting, it will also cause cracks, but the cracks will be smaller and the rotting will be less. Fruit cracking is related to insufficient calcium content in fruit. Third, prevention and control measures 1. Reasonably trimmed. Appropriately removing redundant jujube heads, increasing the distance between the layers and the opening angles of the main and lateral branches, and improving the ventilation and light transmission conditions in the canopy, is conducive to the rapid drying of the jujube fruit surface after rain and can reduce the incidence of cracking fruit. 2. Irrigate in time. The timely irrigation of young fruit after fruit setting can not only promote the normal development of fruit, but also prevent fruit cracking due to prolonged drought and rain. 3. Increase organic fertilizer. The application of organic fertilizer can effectively improve soil physical and chemical properties, promote root growth and development, enhance the absorption of effective minerals by the root system, and increase photosynthetic efficiency. 4. Spray calcium amino acids. From the fruit enlargement period (late July), spray 1,000 times of amino acid calcium solution every 15 days and spray 2-3 times until harvesting, which can significantly reduce the cracking phenomenon. Eas Deactivator,Rf Deactivator,Sensormatic Deactivator,Security Label Deactivator WENZHOU BOSHINE ELECTRONIC SECURITY CO.,LTD , https://www.boshine.com