Black plum is a common plum variety, which is called black plum in some places. When it matures, its sugar content is relatively high. It is a hybrid fruit, a hybrid variety of China plum and European plum. Black bell is also a temperate fruit, but its plants have certain cold tolerance and prefer sunshine. It is planted in the north and south of China, and the growth temperature is 15-23 degrees.

Heibulin got its name from the free translation of English blackplum, that is, black plum. Plum is often transliterated as Brin in the Chinese-speaking world of China, Hongkong, Taiwan Province and Southeast Asia, so the fruit is translated as black Brin. In addition, some places are translated into dark brown, or black plums, black rose plums and so on. Due to the introduction from the United States, the fruit is purple and black, also known as American black plum and American plum.

Cultivation techniques of heibulin

1, planting requirements: First, it is necessary to dig a hole for planting, the length, width and depth of the planting hole should reach 1m, and sufficient base fertilizer should be applied in the hole; Secondly, the number of pollinated trees in orchard should not be less than 10%, and most varieties of plum trees are self-flowering, so it is suggested to use plum trees with the same flowering period as pollinated trees to improve yield.

2. Fertilization: Young trees are mainly promoted by applying nitrogen fertilizer. In spring, summer and autumn, urea or decomposed farmyard manure can be applied before the shoots germinate to promote the growth of branches. Results The flower-promoting fertilizer was applied at 1 and before budding at 10d, with phosphorus and potassium compound fertilizer as the main fertilizer. The second application of fruit-strengthening fertilizer was applied in the period of rapid fruit expansion, with phosphorus and potassium compound fertilizer as the main component and chicken manure as the organic fertilizer.

3, plastic pruning: young trees are lightly cut and put long, and the crown is cultivated. That is, in the first year after planting, the stems are cut short at 60 ~ 80 cm from the ground, and 3 ~ 7 branches are selected from the branches that germinated that year as the main branches. When the main branch grows to 40cm, it should be cut short, and the buds should be cut outward.

The above contents refer to Baidu Encyclopedia-Heibulin