The main reasons that cause peach pits to crack are: 1. Variety characteristics cause cracked walnut varieties with crispy flesh to crack more easily than varieties with dense meat; round varieties are easier to crack than oblong varieties ; Early and mid-maturing varieties are easier to crack than late-maturing and late-maturing varieties.

2. Environmental conditions cause cracked cores. Excessive rain before and after the hard-core period of peaches can easily cause cracked cores; too high soil water table and poor drainage can also cause cracked cores.

3. Improper management causes cracked cores. Excessive application of nitrogen fertilizer and insufficient phosphorus fertilizer causes the peach trees to grow elongated, and neglecting pruning in summer can easily cause cracked cores. Some preventive measures can be taken to prevent peach stone cracking, such as choosing varieties that are not easy to crack the stone, strengthening ditching and drainage in cultivation and management, paying attention to summer pruning, applying sufficient phosphorus fertilizer and less nitrogen fertilizer, etc.