Marshal system, Fuji system, golden crown system.

(2) Site conditions.

Altitude 1000m to 1700m, the soil layer is deep, the soil is sandy loam and loam, the organic matter content is above 0.8%, and the soil pH value is 6.5 to 8.

(3) Cultivation techniques.

1. Seedling raising: Begonia Illicium and Shanstator are used as rootstocks, and the mother plants with strong growth, no quarantine pests and diseases and good quality are selected to collect scions for grafting seedling raising.

2. Colonization:

(1) Planting time: spring or autumn. Plant before the soil freezes in autumn. Spring sowing should be carried out after the soil is thawed and before the seedlings germinate.

(2) Planting density: planting density of common varieties/rootstocks ≤495 plants/hectare, and planting density of short-branch varieties/rootstocks ≤725 plants/hectare.

3. Fertilization: organic fertilizer ≥ 37,500 kg per hectare.

4. Shaping and pruning: The trees are mainly in the form of small crown and sparse layer, free spindle and slender spindle, and are pruned in four seasons. 667m2 (mu) branch ≤ 80,000.

5. Environmental and safety requirements: The use of pesticides and fertilizers must comply with the relevant provisions of the state and must not pollute the environment.

(4) harvesting.

1. Harvest: Marshal series and Jin Shuai series are harvested from the end of September to the beginning of 10, and Fuji series is harvested in the middle and late period of 10.

2. Storage: precooling and warehousing in time after harvesting. The marshalling system is stored for less than 15 days at room temperature and less than 180 days in controlled atmosphere; Jin Shuai stored at room temperature for less than 20 days, Fuji stored at room temperature for less than 30 days, and modified atmosphere storage for less than 240 days.