The illustrations of plum tree pruning techniques are as follows:

1. Summer pruning

Pruning small plum trees in summer can be divided into 3-4 times. After the first germination in spring, it is mainly necessary to remove improper growth positions, double buds, weak buds, and ineffective branches. The second time, after the flowers have fallen, combine the thinning of the flowers and the results, remove the dense branches, and control the competing branches. The third time is to short branches after hardening to promote the growth of secondary shoots. The fourth time is to prune excess secondary shoots at the end of autumn and pick long fruit branches to promote flower bud differentiation, make the overall tree shape better, and increase the fruit setting rate of fruit trees.

2. Winter pruning

The purpose of pruning small plum trees in winter is to maintain the shape of the tree, maintain the balanced growth of the plum tree, and coordinate the balance of vegetative growth and branch growth. During the aging and renewal period of fruit trees, very thick old branches can be directly sawn off and the fruiting life can be extended by the germination of new branches.

The growth environment and distribution range of plum trees

Plums generally grow in hillside shrubs at an altitude of 400-2600 meters, in valleys and sparse forests, or by water, at the bottom of ditches, or beside roads etc.; has strong adaptability to climate and can grow in any soil as long as the soil layer is deep and has a certain degree of fertility; it has high requirements for air and soil moisture and is extremely intolerant of water accumulation; it is suitable for loose soil , grow in places where the soil is well-permeable and well-drained, the soil is deep, and the water table is low.

Li is distributed in Shaanxi, Gansu, Sichuan, Yunnan, Guizhou, Hunan, Hubei, Jiangsu, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi and Taiwan in China. It is cultivated all over the world.