Introducing yew varieties that are suitable for cultivation in the north

Yew can be grown in the north, and the main varieties are:

1. Northeast yew.

Taxus chinensis has the characteristics of cold resistance, shade preference, moisture preference, fertilizer preference, fear of drought, flood and high temperature, and has a wide range of adaptability to soil. During the dormant period, it can tolerate low temperatures of -42, has no frost damage, and does not lose leaves when buried by heavy snow. Summer temperatures over 30 slow growth and stop as temperatures continue to rise.

The growth is slow, the plant height is about 2m in 14 years, and the diameter of the trunk increases by 5px per year. Under good cultivation conditions, 2-year-old cuttings were planted for 5 years, and the plant height was more than 1m.

2. Mandia yew.

Mandia yew is native to the United States and Canada and is a natural hybrid. Its taproot is not obvious, the lateral roots are developed, the branches and leaves are lush, the germination force is strong, and it is resistant to low cold, and can withstand low temperatures of 25. It can be planted in most parts of our country.

The growth is fast, the annual growth is measured at 40 90cm, and the highest can be 60 70cm, which is 300 700% of the growth of domestic yew (Chinese yew, Yunnan yew, etc.). The biomass accumulation of 3 4 years is 600 800 plants/year, and the fresh raw materials produced at 5 years can be used to refine paclitaxel. The following year, new branches and leaves can sprout, and their biomass is larger than the harvest in the previous year.

Of course, it's the northern yew, and there are rough bandits, and the details are plus.

In general, the northern region has a severe cold, dry and irritable climate, and little rain, and the severe cold is not a matter for yew, but the conditions of dry and less rain are not very suitable for the growth of yew, so even if there are yew trees all over the northern region, they are grown in the mountainous areas of Gansu Province, Shaanxi Province and Henan Province with sufficient rainfall and warm climate, and it is rare in other places, even if it can survive, it also grows poorly, large-scale planting is not advisable, and it is okay to enjoy planting at home, but it is necessary to build a relatively shady and moist small environment.

Yew belongs to shallow-rooted greening plants, has strong adaptability to temperature, loves cool environments, and can survive in an environment of minus 30 degrees, but the most suitable temperature for growth is 20-25 degrees; Yew has high water requirements, prefers a humid environment, and grows best under moist conditions with sufficient rainfall; Yew has high soil requirements, and although it likes moisture, it is always afraid of water storage, so it needs to be planted in a thick, rich and permeable soil. In recent years, it has been bred with Mandia yew and so on. Except for the breeder, all the other types of this type are naturally grown in natural forests.

Because of the long-term growth under the trees, it has its own biological characteristics. <>

They have no requirements for sun exposure, and they are classified as negative growth, and they can grow normally with diffuse light. Most of them grow under the forest, scattered in shady slope and semi-sunny slope areas, and there is almost no yew growth in sunny slope drought areas. In the northern region, the sap is not mobile in early spring, that is, the deciduous trees are not in the budding stage, and in the southern region, it is most suitable to plant in the dormant state after the growth of new shoots stops growing in winter.

Due to natural conditions, it should be planted early in all parts of the country, which is beneficial to the recovery of rhizomes and has a high survival rate.

According to the overall planning in 1 to 2 months before planting, dig rice strip ditch, deep application of organic fertilizer, 10kg per plant, stir with the subsoil, cultivate into a mound, put the saplings in, make the roots stretch, calibrate the part, fill in the surface fertilizer soil, layer stability, and finally fill in the heart of the soil, build a rice wide water injection ditch, immediately inject water, water enough to irrigate, water seepage after the provision of the root neck and the ground level, and then cover the soil and solid soil, moderate shading can improve the survival rate.

No, yew is suitable for humid and warm places, and the climate in the northern region is hot and dry, so it is not suitable for yew planting.

No, this plant is not suitable for growing in dry and hot conditions, and it is easy to lead to death.

It is very unsuitable for planting, the climate in the north is dry and rainless, and the dry environment is not suitable for the growth of this crop.

The yew planting method is as follows:

1. Site selection. It is better to choose loose, humus-rich, neutral or slightly acidic alpine terraces, deep moist brown soils and dark brown soils on both sides of valleys and streams. Deep turning, leveling, according to the plant row spacing meters or meters of holes, the depth of the hole is 40 centimeters, ready for planting.

Selecting a garden and preparing the land. Generally, it is better to raise seedlings and transplant under the pine forest according to local conditions. Choose the wetland pine or masson pine forest land with canopy density and no pests and diseases as the nursery, which requires a gentle slope, deep upper layer and good drainage.

In August and September, the weeds and shrubs in the forest are removed, arranged into a horizontal ladder, dug 20-30 cm deep, and raked in November.

When preparing the land, apply 40-60 quintals of rotting base fertilizer (1 mu 2 1 15 hectares,), divide the box as a bed, the bed height is 15-20 cm, the width is meters, and the sowing furrow is pressed out with a 15 cm wide plank after leveling the compartment surface, 2 cm deep, and the sowing ditch is 20 cm apart.

2. Transplanting. Generally, 1-2 years of seed seedling, about 1 year of cuttings propagation, when the seedling height grows to 30-50 cm can be transplanted. Transplanting should be carried out in October-November or February-March before germination, planting 1 seedling per hole, watering, and proper shading.

3. Management. After the seeds emerge, weeds should be pulled out frequently. Top dressing 1-2 times a year, in the rainy season to prevent stagnant water to prevent root rot.

After the sandalwood, the weeding is done twice a year, and the woodland is generally only weeded in winter after the forest is closed, and the soil is cultivated 5 times. Combined with cultivating and weeding for top dressing, the fertilizer source is mainly farmhouse fertilizer, and the tillers should be cut off at the young tree stage to ensure that the main trunk is straight and grows quickly.