Rapid growth of Taxus mairei

(1) seed collection and treatment: every year from the Autumn Equinox to Frosts Descent, that is, from September to October, the fruits or fallen fruits of mature and robust middle-aged trees are collected and mixed with appropriate amount of fine sand and water in the collection home (do not pile up). Scrub the mixed sand seeds repeatedly with both hands on the cylinder basin or washing board, remove the seed coat, wear the hard inner seed coat, and then rinse the outer skin and sand grains with running water. due to mechanical wear, the seeds are easy to permeate and breathable, break the seed dormancy period, and then spread out to dry and set aside, it is best to sow the dried seeds within a week, with the highest germination rate, and the seeds can also be stored in sand to be sowed in the following spring, but the germination rate is poor.

(2) soaking and sowing seeds:

(1) Winter sowing means that within one week after seed collection, the treated seeds are soaked in 50 degrees liquor and 40 degrees Celsius warm water (1:1) for 20 minutes, and then soaked in 0.05% gibberellin for 20-25 hours, which can induce the production of hydrolase and decompose the storage substances of seeds from molecules to small molecules, such as starch hydrolysis into sugars and proteins into various amino acids, which can be easily used by embryos and break the seed dormancy period. Promote seed germination. For sowing, it is best to choose land with sufficient sunshine, convenient drainage and irrigation and thick soil layer as seedling land, deep ploughing and spreading compound fertilizer (80 kg per mu) as base fertilizer, raking fine and leveling, making a border 1 meter wide, unlimited length, and opening a good drainage ditch, that is, densely sowing seeds on the border to cover seeds with fine soil 2 cm, watering thoroughly, covering agricultural film, and then covering 5-10 cm thick mud and hay on the film, showing the shape of tortoise back, avoiding accumulated rain and snow, rotten seeds. It can also keep warm and moisturizing.

(2): when sowing in March of the following year, the seeds should be germinated half a month in advance. Before germination, the seeds should be soaked in liquor and lukewarm water, and the seeds should be soaked with gibberellin to break seed dormancy. In the budding stage, the seed fully absorbs water and expands, and the seeds can be sown after the radicle is slightly exposed. Sowing method: the seeds and sand are mixed at the ratio of 1 to 1000, and the humidity of the sand is about 60%. It is appropriate to squeeze the sand into a ball by hand, loosen it and spread it indoors. The thickness is 20-30 cm, after sowing, cover with agricultural film insulation, it is appropriate to adopt sparse sowing.

(3) Seedling transplanting and fertilization: the Beginning of Spring often checked the seeds before and after showing white, and found that the mulch was removed immediately, and the flat film was changed to arch film for heat preservation and budding. After changing the film supply, attention should be paid to adjusting the temperature and humidity. On sunny days, attention should be paid to lifting the agricultural film on both sides of the arch shed to cool and breathe, and spray water to the unearthed seedlings in 3-5 days. After the seedlings grow to 3-4 leaves, sparse seedlings are selected and planted sparsely in cloudy days, with a row spacing of 10-20 cm. After the seedlings grow to 3-4 leaves, sparse seedlings are selected and sparsely planted in cloudy days, with a row spacing of 10-20 cm. After 20 days of seedling transplantation, weeds are easy to grow in the field, especially 3-5 times of intermediate ploughing and weeding from May to August, weeds must be removed early, shallow hoe, do not hurt seedling roots, topdressing after each ploughing and loosening soil, urea 5-10 kg per mu, potassium chloride 3-5 kg mixed with water and fertilizer, and foliar fertilizer can be applied. After spring emergence, it can grow to 30-50 cm high after 2-3 seasons of cultivation, and transplant afforestation in winter and spring. If the potted plant grows to 10 centimeters, it can be transplanted with soil with its roots.

(4) Prevention and control of diseases and insect pests: the wild state of Taxus mairei has strong resistance to stress, few diseases and insect pests, and occasionally aphids or spiders form webs, which can be sprayed with general pesticides, which is the same as that of Taxus chinensis and pine.