(A) Garden and rootstock selection

Red Fuji apple should be cultivated in a well-drained place, on the leeward and sunny slopes in hilly and mountainous areas, and in neutral-slightly acidic soil. At the same time, we should choose rootstocks with strong resistance, such as begonia rotundifolia. M26, MMI06 and M7 can be used as intermediate rootstocks for dwarfing and close planting, and can be grafted on 2-5-year-old Guoguang trees to increase cold resistance.

(2) Planting density

405 ~ 660 plants per hectare (27 ~ 44 plants per mu) are planted with common red Fuji, and the spacing between plants is 3 ~ 4m× 5 ~ 6m. Dwarf intermediate stock (M26, MM 106, M7) is planted with 660 ~ 990 plants per hectare (40 ~ 66 plants per mu), and the plant spacing is 2.5 ~ 3m× 4 ~ 5m.

(3) shaping and pruning

Red Fuji young trees should pay attention to the opening angle, the central trunk and extended branches should be appropriately cut short, and other branches that do not affect the tree shape should be lightly cut and lengthened. Pay attention to cultivate a loose and clear tree structure, remove the over-dense developing branches and competing branches in time, keep the indoor room fully illuminated, and pay attention to the shortening of the fruiting branches.

(D) Rational allocation of pollination trees

The self-pollination and seed setting rate of Red Fuji is extremely low, so it is necessary to allocate pollination trees reasonably when building the garden. When planting common red Fuji, Jinguan, Wanglin, Hongxing, Tsutsugaru and World No.1 can all be used as pollination trees, while short-branched red Fuji should be pollinated by short-branched varieties Jin Aisheng, Xinxing, Brilliant Red, Super Red and Shouhong.

In the case of close planting, the configuration form of pollinated trees among plants is better, generally every 4 ~ 5 plants are equipped with 1 pollinated tree. If it is arranged between rows, a row of pollination trees should be arranged every 4 ~ 5 rows, and the proportion of pollination trees is generally around 15% ~ 20%.

(5) artificial pollination and fruit thinning

The self-flowering and fruit-setting rate of Red Fuji is very low. Even if there are pollinated trees, artificial pollination should be carried out without losing time. After fruit setting, the fruit should be thinned strictly according to the branch-fruit ratio of 4 ~ 5: 1, and only the middle fruit should be left to prevent the excessive load from affecting the tree vigor and fruit quality.

(6) Pay attention to cold protection

In the northern Red Fuji cultivation area, there are often different degrees of freezing damage and peeling, which may affect the yield and even cause the trees to die. Therefore, in addition to choosing a place with good microclimate conditions, we should also protect the young trees under cultivation.

Measures, such as planting grass and sealing mounds.

(seven) pay attention to the prevention and control of pellagra and ring rot.

Red Fuji apple is not resistant to rough skin disease and ring rot, which is a big obstacle to popularize red Fuji cultivation. The fundamental measure to control pellagra is to improve soil and enhance tree vigor. Apply more organic fertilizer, dig deep into the soil, or cover the orchard with grass to alleviate the disease; Selecting rootstocks resistant to pellagra, such as begonia rotundifolia, can also reduce the occurrence of pellagra. The intermediate rootstock has strong light resistance, so the diseased branches should be scraped off and coated with the original solution of sulfur mixture for disinfection. Ring rot is caused by weak parasitic bacteria infection, and the incidence of strong trees is less. Therefore, it is necessary to strengthen the cultivation management and enhance the tree potential. Special attention should be paid to the reasonable collocation of nitrogen, phosphorus and potassium fertilizer, and more organic fertilizer should be applied to avoid partial application of nitrogen fertilizer. The ringspot on the branches is the initial source of infection, so it should be pruned in winter and spring, scrape off the rough and old skin of the branches, cut off the diseased dead branches and burn them centrally outside the garden. After scraping, apply 5 waves of smectite sulfur mixture or 1% copper sulfate solution for disinfection. During the growth period of fruit trees, spray 20% fenxiuning EC 1 500 times of15 days after flowering, and then spray it every 15 ~ 20 days from mid-late May to August, * * * 4. In order to improve the control effect, the following pesticides can be used alternately: 100 times 80% Dijundan WP, 500 times 25% carbendazim WP, 600 times 50% carbendazim WP and 800 times 50% thiophanate-methyl WP.