Taxus chinensis cutting seedling method in early spring stage

Abstract

The invention discloses a taxus chinensis cutting seedling method in an early spring stage. The method comprises steps: 1) selecting cutting land; 2) performing fatting and insecticide on the cutting land; 3) building beds, including, according to terrain of the cutting land, building at least two cutting beds by air bricks, the cutting beds being above ground level, arranging footpaths between cutting beds; 4) refilling ground substance; 5) building a shed; 6) acquiring and processing cutting woods, including acquiring current-year semi-lignified branches on seed trees which do not have plant diseases and insect pests and grow strongly, bundling cut branches in a grading manner, and then dipping and soaking the branches in compound mud; after the branches are taken out of the mud, using paraffin to seal the ends of the branches which are not dipped with the mud, the mud ends being exposed, placing for 2-3 days to promote rooting; 7) cutting, including inserting processed branches in a cutting medium, after cutting is completed, using straw to cover gaps among the branches; 8) managing and protecting the seedlings. The method is simple in operation, low in cost, fast in rooting speed, high in survival rate, and high in seedling quality, and can be used in snow accumulation regions in winter.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, in particular to a method for raising seedlings of yew by cuttings in early spring. Background technique [0002] Yew, also known as yew, is known as the "living fossil" in the plant kingdom. Because of its scarce resources, it is listed as a rare tree species in the world for protection. Chinese yew integrates medicinal, material and ornamental uses, and has extremely high development and utilization value. Taxol extracted from yew bark and branches and leaves is a recognized anticancer drug in the world. Paclitaxel is used to treat advanced breast cancer, lung cancer, ovarian cancer, head and neck cancer, soft tissue cancer and digestive tract cancer; yew branches and leaves are used for Treatment of leukemia, nephritis, diabetes and polycystic kidney disease. Taxus is scarce in natural resources and drug sources. More importantly, under natural conditions, the growth rate of Taxus ...

AI Technical Summary

Problems solved by technology

[0003] At present, the artificial planting of yew includes two methods of seed seedling cultivation and cutting seedling cultivation. Seed sowing seedling cultivation has the following disadvantages: 1) the yew seeds must go through a dormancy and awakening period, and the cycle is long; 2) the protective layer of the seed shell must be artificially processed. , otherwise it is not easy to germinate, which is time-consuming and increases the cost; 3) Seed sowing must be carried out after the beginning of spring, and the temperature and humidity must be well controlled, otherwise the seeds will not germinate or rot, and the survival rate will be low

However, due to the use of dry loess or sandy soil as the breeding bed and the treatment with pesticides mixed with water, in the actual operation process, improper control of water consumption can easily cause hardening of the breeding bed, and in the process of growing seedlings by cuttings, there will inevitably be Insufficient nutrition, more importantly, this method treats the branches with a single rooting agent and then cuts them directly, and then sterilizes the cuttings. Although only treating the branches with a rooting agent can also promote rooting, improper control of the amount of rooting agent will cause The branches are irreversibly damaged, and the rooting agent adheres to the branches, which will affect the effect due to the dilution of the soil during cutting

Patent CN103283460A discloses the cutting method of Taxus Mandia, which discloses "include steps: 1) selection of cutting place: choose a place with flat terrain, sheltered from wind, sufficient water source, less sunlight and convenient management; The cutting bed is built with bricks around the ground, the cutting bed is higher than the ground, and a walkway is set between the cutting bed and the cutting bed; 3) The cutting matrix in the cutting bed is made of perlite and peat soil, and on the cutting matrix Spray carbendazim solution for disinfection; 4) collect the semi-lignified branches of the current year on the mother tree without damage by diseases and insect pests, and make cuttings from the branches. For the complete branch with leaves, remove the lower 2 / 3 leaves of the cuttings; 5) Soak the base of the treated cuttings with ABT1 rooting powder solution for 2-2.5 hours, and the soaking depth is 2-3cm; 6) Insert the cuttings into the cutting matrix In this method, water once after each cutting is inserted, and a plastic shed is built above the cutting for shading, and water, air humidity, temperature, etc. are well managed". This method backfills the cutting substrate in the breeding bed, And management at the seedling stage after cuttings to ensure the survival rate of cuttings. However, due to the use of a single rooting agent mixed with water to soak the roots, there is still the risk of difficult control of the amount of rooting agent and damage to branches. Although this method has done a good job in water and fertilizer management at the seedling stage, However, insecticides and fungicides were not added when topdressing, and there was a risk of polluting seedlings