Causes of fruit cracking 1. Water imbalance. The soil is too dry in the early stage of growth, continuous rainy days in the middle and late stages, or heavy rain or heavy rain, causes excessive water supply in the root system in a short time, and the pulp of winter jujube seedlings expands rapidly, which increases the pressure on the peel and causes fruit cracking. 2. Nutritional imbalance. Some jujube farmers excessively use ammonium nitrogen fertilizers such as urea in the production of winter jujube, which causes excessive nutrient growth, resulting in nutrient imbalance in the tree, and fruit cracking. 3. Sunburn damage. The leaf area of ​​the winter jujube tree is small, and the sun-faced fruits are easily exposed to direct sunlight, which will form sunburn scars on the surface, which will reduce the toughness of the epidermis at the sunburn, and will first crack along the sunburn after rain. Precaution 1. Increase the application of organic fertilizer, biological bacterial fertilizer and mineral fertilizer to improve the soil, increase soil fertility, maintain uniform water supply, and reduce fruit cracking. 2. Reasonable pruning and improved ventilation and light conditions are beneficial to the rapid drying of the surface of the jujube after rainfall and reduce fruit cracking. This period should focus on thinning and pruning, thinning out the perennial branches that are too dense, the new jujubes sprouted on the backbone branches, and the branches that are improperly located and are not planned to be retained as new branches; the excessively long branches in the partial crown tree Pull it out to fill the space. 3. In the rainy season, pay attention to draining the accumulated water in the jujube garden. When the weather is dry, pay attention to irrigating the winter jujube seedling garden. Drip irrigation or sprinkler irrigation can be carried out. During the fruit expansion period, keep the soil moist, but prevent the soil from being too wet or too dry. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Notebook Color Doppler Ultrasound Machine Notebook Color Doppler Ultrasound Machine,Heart Color Doppler,Ultrasound Machine For Cardiac,Color Doppler Ultrasound Machine Mianyang United Ultrasound Electronics Co., Ltd , https://www.ultrasonicequip.com