Paraplesia cutting seedling raising and planting method

Abstract

The invention provides a paraplesia cutting seedling raising and planting method which comprises the step of seedbed settling, soil scarifying and fine grinding, weed removing, bio-organic fertilizer adding, and bio-organic fertilizer and surface layer soil even mixing and further comprises the following five steps of cutting shoot selecting, cutting pretreatment, cutting, ecological bag seedling raising and planting. According to ecological bag seedling raising, an ecological bag is filled with seedling raising soil, and a rooted paraplesia seedling with a soil ball is transplanted into the ecological bag to be cultivated for one to two months. According to the paraplesia cutting seedling raising and planting method, the technology of combining land cutting and ecological bag cultivating is adopted, the survival rate and the preserving rate of paraplesia planting are increased, the cultivated ecological bag seedling is a whole-root seedling and provided with the soil ball, the root is not damaged in the planting process, and the survival rate of planting reaches more than 90 percent. It is shown by a field test in a black river village in the Maixi village of the Zoige county, the survival rate obtained after a paraplesia cutting bare-rooted seedling is planted is 72 percent, the preserving rate obtained after one year is 56 percent, and according to the paraplesia cutting seedling raising and planting method, the paraplesia planting survival rate is 95 percent, and the preserving rate obtained after one year is 88 percent.

Description

technical field [0001] The invention belongs to the field of afforestation and relates to a Kangding willow planting method. Background technique [0002] Kangding Willow ( Salix paraqplesia ) is Salicaceae, Salix, small trees, mainly distributed in my country's Sichuan, Gansu, Ningxia, Qinghai and eastern Tibet provinces, born in alpine regions at an altitude of 1500-3800m. Kangding willow has a large canopy, good wind resistance, drought and cold resistance, well-developed root system, suitable for growth in various soil environments, and has good functions of windbreak, sand fixation, and water and soil conservation. It is the first choice for alpine sandy land management in Northwest Sichuan and other regions It is the main sand control shrub material, and the market demand for seedlings is large. At present, the seedling propagation of Kangding willow mainly adopts the method of field cutting. The survival rate after raising seedlings in this way is acceptable. The i...

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Problems solved by technology

The survival rate after raising seedlings in this way is acceptable. The inventor found in the process of implementing the present invention that since the cutting seedlings are bare-rooted seedlings when they are planted in sandy land, the survival rate and preservation rate of seedlings after planting are difficult to guarantee. On the other hand, Northwest Sichuan and other alpine regions have a short growing season, resulting in the planting time of Kangding Liu cuttage bare-root seedlings concentrated in April-May, which is not conducive to large-scale vegetation restoration.

[0003] "Sichuan Forestry Science and Technology" No. 6, 2012, disclosed a method of raising alpine willow cuttings and seedlings. Based on experience, age, length, thickness and number of lateral buds were selected as factors affecting rooting to screen better cuttings, that is, 1-year-old cuttings with a length of 20cm Cuttings with a thickness of 0.8 cm and 3 lateral buds are the best method for raising seedlings from alpine cuttings, but the inventors have found through experiments that this does not represent the best combination of various factors that affect the survival rate of alpine willows, especially Kangding willows. The survival rate of alpine willows, especially Kangding willows, cannot be guaranteed