Floating seedling raising method for Pinus yunnanensis

Abstract

The invention discloses a floating seedling raising method for Pinus yunnanensis, which is characterized in that a floating tray is nested in a black seedling raising tray, 160 holes are formed in thefloating tray, light perlite is adopted in the holes to imitate the growth environment of Pinus yunnanensis, planting in a nutrient solution is performed, the room temperature is controlled at the same time, seedlings are raised until the roots reach 10 cm, and the seedlings are transplanted into nonwoven bags. The method has high seedling rate and lower seedling raising cost, and is simple, easyto perform and suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of planting and raising seedlings, in particular to a floating seedling raising method of Yunnan pine. Background technique [0002] Yunnan pine (Pinusyunnanensis) is an evergreen coniferous tree belonging to the Pinaceae family. It is a pioneer tree species and an important timber species for barren hill afforestation in southwest China. It has high economic value and ecological benefits (Wu Zhengyi et al., 1987). ). As the third largest pine species in my country, Yunnan pine is mainly distributed in Yunnan, Guizhou, Guangxi, Sichuan and Tibet in the southwest. Among them, the core distribution area of ​​Yunnan pine is in Yunnan, and it is distributed in 14 cities in the province except Pu'er City and Xishuangbanna Prefecture. It is distributed to Xichang and Muli in Sichuan in the north, Bijie and Shuicheng in Guizhou in the northeast, and Shuicheng in the east. Extending to the western part of Guangxi,...

AI Technical Summary

Problems solved by technology

Yunnan pine is the main timber tree species in Southwest China. However, the local people have been harvesting and utilizing it for a long time in the way of "cutting big and leaving small, cutting straight and leaving bends", which has led to a decline in the quality of Yunnan pine stands, and the proportion of "bent twisted pine and ground pine" has continued to increase High, seriously restricting the development of high-quality and high-efficiency Pine yunnanensis artificial forests, so that the utilization of its timber is mainly based on cutting natural pine forests, which further affects the quality of the entire Pine yunnanensis stand, and a large area of ​​low-quality forests appears. low efficiency forest