2. When cutting or sawing, the cortex below the incision should not be damaged, and the incision should be smooth. After pruning, wax the wound, and then wrap the trunk and branches with straw.
3. After selecting the new shoots, remove unnecessary buds, remove the core from the excessively long new shoots, spray chemicals to protect the new shoots, and pay special attention to the prevention and control of diseases and citrus psylla.
Extended data:
Oranges are the fruits of citrus trees in Rutaceae, also known as Guo Huang, Citrus, Jinhuan and Liu Ding.
The leaves are thick and papery, the wings are obovate, the length is 1-2.5cm, the width is 0.4- 1.5cm, the tip is round or blunt, the wedge-shaped tip tapers to the base, the leaves are ovoid or lanceolate, the longest is 8cm, the width is 4cm, the smallest is 2.5cm, and the width is about 1cm, and the tip is the top.
Flowers are solitary in leaf axils, and pedicels are drooping and short; Calyx cup-shaped, 5-4-lobed, lobes broadly ovate, terminal; Petals are white, sometimes purplish red on the back, and are 1- 1.3 cm long; 20-25 stamens; The style is about twice as long as the ovary, and the stigma is about the same size as the ovary.
The fruit is oblate or pear-shaped, with different sizes, the large diameter is 8 cm and the small diameter is about 4 cm. There are annular protrusions and shallow radial grooves at the top of the fruit, and sometimes radial grooves at the pedicle. The skin is rough, the capsule wall is thick and tough, the flesh is yellow and white, the taste is very sour, and it often has bitterness or odor. There are as many as 40 seeds, wide oval, full and smooth, with milky cotyledons and single or multiple embryos. The flowering period is from April to May, and the fruiting period is10-165438+10.
References:
Baidu encyclopedia-orange