Topping and pruning method for plum tree crown

Abstract

The invention discloses a topping and pruning method for a plum tree crown. The method includes the steps of topping in summer and pruning in winter, the step of topping in summer includes three times of topping, the topping for the first time is at the first ten-day period of May, the topping for the second time is from the last ten-day period of June to the first ten-day period of July, and the topping for the third time is at the first-ten-day period of August. The pruning time in winter is from the middle ten-day period of November to the middle ten-day period of January in the next year. The topping and pruning method can promote dwarfing of a plum tree, the plume tree crown can be formed and is sturdy in main and lateral branch, reasonable or ideal in number and distribution or structure and high in yield, the situations that redundant branches consume nutrient and cause crown closure are reduced, dwarfing, ventilation and light transmission of tree bodies and cultivation management of a plume tree garden are facilitated, reproduction growth is promoted through dwarfing, close planting, centralized nutrient supplying and photosynthesis enhancement, differentiation forming of bearing branches and flower bud differentiation can be accelerated, and the plum tree can be promoted to bear fruits in advance and promote the high yield of the plum tree garden.

Description

technical field [0001] The invention belongs to the field of agricultural planting, and in particular relates to a method for topping and pruning plum tree crowns. Background technique [0002] Prunus is resistant to barrenness and drought, and is especially suitable for the special environment of rocky desertification mountainous areas with high rock exposure rate, fragile ecology, serious soil erosion, thin soil layer, and prone to drought and flooding. It is an important fruit tree in limestone mountainous areas of our country. The elongated branches of plum trees do not bear fruit, because they mainly carry out vegetative growth and do not differentiate flower buds, but they can be cultivated and extended branches through topping and pruning, which become the basic skeleton of the high-yield crown of plum trees; ) in the middle and lower part of the axillary buds, when the conditions are suitable, a small number of axillary buds can produce short fruiting branches and we...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, as the patent No. CN102726266A, the invention patent discloses the cultivation method of the purple amber plum tree. The pruning method disclosed in it retains the central trunk, selects 3 to 5 main branches at the base, and has no second main branch. The last time it was equipped with side branches, fruiting branches or groups of fruiting branches grew on the side branches. The disadvantage is that the growth rate of the central trunk is faster than that of other main branches, resulting in the height of the branches of the central trunk being significantly higher than that of other main branches, which will affect the growth of plums. yield and quality