Apple trees like warm and humid environment and are suitable for planting in fertile and loose soil rich in organic matter. Pay attention to drainage and ventilation. Apples are planted in the north and south of China. Generally, the most famous producing areas are Yan 'an, Yantai, Jingning, Lingbao and Zhaotong, among which the red Fuji varieties in Yantai are the most famous.

Apple growth cycle

Apples have a wide adaptability to the environment, and can tolerate frost at minus 40 degrees. The temperature should not be lower than 0℃ during flowering and fruiting, which will affect the yield. It is most suitable for growth in neutral soil with ph value of 6.5 and good drainage. The growth cycle of apples is about six months.

Apple growth rate

The growth process of apple must go through flowering, physiological fruit drop, fruit expansion and maturity. From bud to fruit harvest, the apple fell four times. The first time is at the end of flowering, and the second time is one week after flowering, lasting 5~20 days, that is, early fruit dropping. The third time is 7~ 14 days after the last fruit drop, which is also called physiological fruit drop. The fourth time is just before the fruit is harvested, that is, before the fruit is harvested.

Apple growth cycle management

The yield per mu of apples is related to management level, varieties and natural conditions. For example, the output of apples in the prosperous period is about 5000 Jin per mu. Temperature management: Apples like warm environment, and the average annual temperature of growth and development needs to be between 7 degrees and 14 degrees. Most apples are cold-tolerant, and can tolerate the low temperature of about -30 degrees, but in order to obtain higher yield, heat preservation measures must be taken. Fertilization management: Only when fertilization is needed can the fruit setting rate be improved, and base fertilizer can be applied. Calcium carbonate can be applied to fruit trees in fertilization period, and compound fertilizer with balanced nutrition can be applied in growth period to balance the ratio of nitrogen, phosphorus and potassium.