Taxus cultivation techniques;
1, seedling raising
Generally, it is better to transplant seedlings under pine forests according to local conditions. Choose Pinus elliottii or Pinus massoniana woodland with canopy density of 0.6-0.7, which is free from pests and diseases, as the nursery land, with gentle slope, deep upper layer and good drainage.
165438+ 10 month, thin rake shallow turn. When preparing soil, apply 40-60wt/mu of decomposed base fertilizer, and divide the bed into grids, with a height of 15-20cm and a width of1.2m. After leveling the grid, press out the sowing ditch with wooden boards, with a width of 15cm, a depth of 2cm and a spacing of 20cm.
2. Land selection
It is best to choose loose, humus-rich, neutral or slightly acidic alpine platform, deep wet brown soil and dark brown soil on both sides of valleys and streams. Dig a pit, level it, and prepare for planting according to the plant spacing of 0.4m× 1.0m or 0.4m× 0.4m, with the pit depth of 40cm.
Step 3 transplant
Generally, it takes 1-2 years for seedling raising and 1 year for cutting propagation. When the height of the seedlings reaches 30-50 cm, they can be transplanted. Transplanting should be done before germination in June 10- 1 1 or February-March, and each hole should be planted with 1 seedling, watered and properly covered.
Step 4 manage
Weeds should be pulled out frequently after seeds germinate. Topdressing 1-2 times a year, to prevent water accumulation and root rot in rainy season. After sandalwood is fixed, intertillage and weed twice a year, and intertillage and weed only in winter after forest land is closed, and cultivate the soil five times. Combined with intertillage weeding and topdressing, farmyard manure is the main fertilizer source, and the sprouting tillers should be cut off at the young tree stage to ensure the straight trunk and rapid growth.
Extended data
Potted maintenance of Taxus chinensis;
1, Taxus chinensis should pay attention to the adjustment of light, because the tree is small and needs light, but it cannot be placed in strong light for too long. Generally, it can be dried for about two hours before ten o'clock or after five o'clock every morning in summer and autumn.
2. If the bonsai is new, the tender leaves will be dark and dull, and the top of the new shoot will wither. The general phenomenon is that excessive watering makes some roots rot and the ability to absorb water and fertilizer is weakened. If the symptoms are mild, the watering amount should be controlled, and the topsoil on the surface of the basin should be lightly loosened with a hard and blunt object to make the basin soil breathable. Move it to a place where dew can be received every night, and then move it to the shade at eight or nine in the morning.
3. When watering, you must first compact the cracks along the basin with objects to prevent water from leaking rapidly from the cracks. The illusion of flood will cause the roots to die because of long-term water shortage. Move outdoors at night to receive more rain and dew, and receive two hours of sunshine in the morning and evening to restore the growth of yew.
4. Taxus chinensis is suitable for weak acid soil. If watered with alkaline water for a long time, the leaves will turn from green to yellow, or even fall off. Because of adding acidic nutrients or spraying leaves or potted soil with two thousandths of ferrous sulfate solution once every ten days for three times in a row. It can make leaves turn yellow and green due to alkali.
5. Every year in March and April, Taxus will sprout a lot of buds, which will consume a lot of nutrition. At this time, you can remove the inward growing buds to prevent the leaves from turning yellow or falling off because the branches are too dense and ventilated. For transverse branches and inner branches, thinning branches can improve ventilation and light transmission, and can save excessive consumption of water and nutrients. It is best not to spray liquid fertilizer on the leaves when the buds are just sprouting, nor to pour thick fertilizer on the roots.
6. If only urea is used as topdressing nitrogen fertilizer, the concentration is generally one thousandth; If only potassium dihydrogen phosphate is used as topdressing phosphate fertilizer, the concentration is one thousandth to two thousandths, and the topdressing interval is seven to ten days. ?
References:
Baidu encyclopedia-yew