Shatangju has a stout tree body, medium crown, round head, well-developed root system, round head, slightly upright branches, thick hair tips, dark green leaves, oval shape, slightly serrated leaves, small wing leaves, small flowers and complete flowers. It is one of the citrus varieties with stable and high yield. Generally, it can bear fruit after planting for 3 years. In the harvest period after 5 years, the yield per plant is 100-200 kg, the high yield reaches 350-400 kg, and the fruit is storable.

Shatangju is a traditional local product of Sihui, Guangning, Deqing, Huaiji and Fengkai in Zhaoqing City, and is also praised as "a must" by Yangcheng Evening News. The fruit of Shatangju is oblate, with a tumor-like protuberance at the top and a depression at the umbilical end. It is orange in color, thin in wall and easy to peel. Fruit shape index is 0.78, single fruit weight is 32-56g, edible rate is 7 1%, soluble solids content is 1 1%, and total sugar content is 10.55g/ 100ml.

Plastic trimming

1, principle

Adjust measures to local conditions, prune trees, properly raise and lower them, and ventilate and transmit light to achieve three-dimensional effect.

2, plastic surgery (natural happy shape)

The height of the trunk is 20-40 cm, and the trunk branches (3-4 branches) are evenly distributed on the trunk. The branching angle of the main branch is 30-50 degrees, and each main branch has 2-3 auxiliary main branches. Generally, after the third main branch is formed, the similar central trunk is cut off and twisted to one side to make a fruiting branch group.

prune

Young trees: mainly light pruning. After selecting the extension branches of the class center and the main branches and the extension branches of the auxiliary main branches, moderate or even severe pruning is carried out, and the growth balance among the main branches is adjusted according to the pruning degree and the direction of cutting buds. In addition to properly thinning the over-dense branches, the inner branches and weaker branches in the middle and lower part of the crown should generally be retained.

Early fruiting period: continue to choose short cutting to deal with all levels of trunk elongation branches, wipe summer branches and promote strong autumn branches. In autumn, measures such as ring cutting, root cutting and water control are taken to promote the flowering of Wangshu. Full-fruiting period: timely retract the fruiting branches, falling branches and declining branches, and cut off the shading branches, dead branches and pest branches.