Seed price and planting method of Taxus mairei

Taxus is a general term for the genus Taxus of the Taxus family, and it is recognized as a natural rare anti-cancer plant on the verge of extinction in the world. Because of its slow growth rate and poor regeneration ability under natural conditions, there has been no large-scale yew raw material forest base in the world for a long time, so let's take a look at the seed price and planting method of Taxus chinensis.

How much is the yew seed per jin?

The price of yew seeds is about 200 yuan and 300 yuan per jin, but the price varies greatly due to the variety, quality and market of the seeds. Taxus can be propagated by seed propagation and cuttage propagation, mainly by seedling and transplanting. The plant height and stem diameter of Taxus chinensis seedlings grew slowly in the first two years of emergence, the plant height generally grew about 10 cm a year, and accelerated one year after transplanting, with an increase of 20 cm in 3 ~ 5 years.

What are the species of yew?

1. Taxus mairei: Taxus mairei, also known as yew, red cypress pine, Japanese yew, etc., is produced in Laoyeling, Zhang Guangcailing and Changbai Mountain, and is cultivated in Shandong, Jiangsu, Jiangxi and other provinces, as well as in Japan, Korea and the Soviet Union.

2. Taxus yunnanensis: Taxus yunnanensis, also known as Taxus yew, is found in northwestern and western Yunnan, southwestern Sichuan and southeast Xizang, as well as in Bhutan and northern Myanmar.

3. Xizang yew: Xizang yew, also known as Himalayan yew, is endemic to Xizang, a national first-class key protected wild plant, distributed in Afghanistan, Nepal and Xizang of the Chinese mainland.

4. Taxus chinensis: Taxus chinensis is endemic to China, which is distributed in southern Gansu, southern Shaanxi, western Hubei, Sichuan and eastern Guizhou.

5. Taxus mairei: Taxus chinensis var. mairei, also known as Taxus mairei, Torreya grandis and Taxus mairei, is cultivated in the provinces south of the Yangtze River basin, Henan and Shaanxi, Nanjing and Shanghai, and belongs to the first-class key protected wild plants.

How do yew seeds reproduce?

The main results are as follows: 1. Seed collection and germination: the fruit ripening period of Taxus mairei is from October to November, and the seeds are harvested when the fruit is dark red in the middle and last ten days of October. The seeds need to be stored in wet sand for one year before they can germinate. The seeds are often treated by outdoor natural wet sand storage layer accumulation method to improve the germination rate.

2. Sowing at the right time: Taxus is generally sown in early spring. After one year of seed storage, 30% of the seeds are screened out when the seeds are white, sterilized in 0.2% potassium permanganate solution for 10 minutes, and then washed with clean water to sow, strip sowing, or sowing.

3. Post-sowing management: when sowing, it is appropriate to cover rice straw without seeing the soil, build a shade shed at the seedling stage, and then plant moss to protect the seedlings, protect the seedbed from the sun and rain, and often keep the soil loose and moist, the general seed emergence rate is more than 70%.

How to manage the seedling stage of yew?

1. Strengthen management: after the emergence of yew seedlings, tending management must keep up, and pay attention to timely watering to keep the soil moist to prevent the damage of high temperature and rainstorm. Bordeaux solution should also be sprayed once a week to prevent seedling diseases, or 800-fold topiramate solution can be used.

2. Seedling overwintering: yew overwinters in the first winter after sowing seeds and seedlings. The most difficult thing to manage is that after overwintering, the seedling bed is easy to freeze and bulge, form dry cracks and suffer frost damage. In winter, it is necessary to keep the seedlings warm in the arch shed and cover the grass curtain on the plastic film.

3. Transplanting and refining seedlings: after one year of cultivation, the yew seedlings should be transplanted to the open field seedlings according to the row spacing of 25cm and 30cm, build a 1.5-meter-high shading shed of six yin and four yang, and apply light urea water or light dung water when the seedlings turn yellow.

Planting and Management techniques of Taxus mairei

The main results are as follows: 1. Woodland selection: the yew selects the shady slopes of the middle and lower part of the hillside, the foot of the slope, Caogou and Shanwan with a slope of less than 35 degrees, soil ph 4.5-7.0, fertility, high moisture and good drainage can be used as forest land.

2. Soil preparation and fertilization: the afforestation land of Taxus mairei should be banded or burrowed, the specification of the hole is 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm, 40cm and 30cm.

3. Planting density: the planting density of Taxus is generally 1100 trees per mu, and the row spacing is 60,400cm. The planting density in the young plantation should be determined according to the actual canopy condition of the young forest, and the principle is to plant it in the open space with good light conditions outside the young canopy.

4. Afforestation time: the transplanting time of Taxus mairei was carried out before sprouting from October to November or from February to March, and one seedling was planted in each hole. After planting, it was watered and properly shaded to improve the survival rate.

5. Planting management: Taxus should be nurtured 2-3 times a year after afforestation, hoed twice in May and August-September, and fertilized in May every year from the second year. From the fourth year after afforestation, raw materials can be harvested or whole plants can be dug up by pruning branches and leaves every year.