2. "Lighting requirements" Taxus seedlings and young trees. Mairei is negative, so it is not suitable for full illumination. Proper shading is needed in summer, especially in July and August every year, when chlorophyll in leaves is destroyed, saplings will die. It is not necessary to keep warm at MINUS 20 degrees Celsius in winter, but it is not suitable to water during hibernation (65438+ from the beginning of February of that year to the end of February of the following year). According to practice, the best illumination conditions of Taxus chinensis are as follows. Meiri is from 7: 00 a.m. to 1 1: 00 every morning, and the daily illumination time is about 4 hours, shorter in summer and longer in autumn and spring. However, insufficient light also affects the photosynthesis and growth of Taxus chinensis. Mindray
"Soil Selection" The best soil for potted plants is loam, which is beneficial to the growth of yew. There is water, fertilizer and ventilation. Although clay retains water and fertilizer, it is airtight, which is not conducive to the growth and development of Taxus chinensis. Mairei root system Although sandy soil is breathable, it has poor ability to retain fertilizer and water, which is not conducive to the growth of Taxus mairei. You can also choose peat soil, perlite, etc. Making mixed matrix with loam.
"Water demand" requires proper watering, and the number of watering depends on the degree of soil dryness and wetness. In central China, the growing season is from the beginning of April to the end of 10 every year. During this period, water outdoor once every 15 to 20 days, and water indoor once every 20 to 25 days. The water content of potted soil is about 40%. Excessive watering of Taxus chinensis will lead to the death of root rot (most of the death causes of indoor bonsai cultivation are caused by excessive watering). Especially when there is heavy rain in summer, the extra rain should be discharged outdoors in time to prevent yew from being soaked in water for a long time; Potted soil contains too little water, which is not conducive to the normal growth of Taxus chinensis.
"Soil fertility" Taxus chinensis. Canna is suitable for growing in fertile, loose, moist soil with good drainage and high organic matter content, especially when the organic matter content is above 3%. Therefore, the bonsai soil must be fertilized, and the amount of fertilization is 0.2 kg per plant of organic fertilizer and 0.02 kg of compound fertilizer. Some farmyard manure and cake manure (such as cottonseed cake, peanut cake and sesame cake) can also be applied appropriately according to the situation, and fertilization should be applied as far as possible along the basin wall, not near the roots of Taxus chinensis.
"Flower pot selection" The choice of flower pots should be appropriately large, and more holes should be punched in the lower part of the pot, mainly to enhance the water permeability and air permeability of the flower pot.
"Requirements for transplanting and changing pots" After two years of bonsai planting, the seedlings gradually grew up and the roots were more developed. The original flowerpot can't meet the needs of growth, so it must be cultivated in large pots. When transplanting and changing pots, the dormant period of Taxus chinensis var. mairei is generally selected, and bonsai transplanting and pot changing planting are carried out on cloudy days. The survival rate of transplanting is high at this time. In the process of transplanting, it is necessary to maintain the integrity of the young root system and the water content of the root hair. When planting, the root system should be closely combined with the soil. It is best to break the old pot without destroying the original soil ball, slowly move it into a new pot, and water the roots to ensure the survival rate. If conditions permit, the seedlings of Taxus chinensis can be transplanted to the field to grow, and its growth rate will be faster.
"Pest control" In rainy season, root rot, stem rot and root rot will occur in individual young trees of Taxus mairei, and 70% dixon can be used for 500-800 times; Leaf blight and bacterial blight will occur in some young trees in high temperature and drought season, which can be controlled by spraying 1% bordeaux mixture. Young trees of Taxus chinensis in China. Mairei rarely haunts.
"bonsai pruning" Taxus mairei grows vigorously, is resistant to pruning and can be shaped at will. Can be trimmed into various shapes of Taxus bonsai, such as umbrella, tower, circle and so on. At the same time, in order to keep the crown of Taxus chinensis beautiful, the terminal buds and some lateral buds can be removed moderately.