2. Planting method: In the process of planting sugar oranges in autumn, combined with local natural conditions, a deep pit with a specification of 20 cm×80 cm is generally dug in September. After the soil is completely dried, add 1.5 kg phosphate fertilizer, 1 kg lime powder, 25 kg farm manure and a little bit of rice bran into the deep pit, and generally backfill it with soil mixture. Usually, the tree tray is higher than the ground. In the process of planting, two leaves of seedlings should be cut off, cut short at a height of 35 cm, and the roots should be compacted with a little soil pressure to expose at the joint. At the same time, spread weeds and pour plenty of water to ensure that Qiu Jin sugar orange will not dry up after 30 days of planting.
3, pruning branches, sugar oranges are very vigorous in the normal growth state in autumn, and the fruits and tree tops will absorb corresponding amounts of nutrients, which greatly increases the situation of falling flowers and fruits. Therefore, at the beginning of the year, we should leave 2 ~ 3 strong buds on the spring shoots and cut off the rest. When it grows to 1cm in summer, it is necessary to manually wipe the flower buds until July and cut off some broken branches and leaves. The cultivation methods of fruit trees are mostly comprehensive, that is, the combination of natural cultivation and artificial cultivation is needed.