Ash habits and fertilization
Ash, commonly known as Oleaceae ash. Also known as ?q. This genus is about 70 species, which are mainly distributed in the temperate zone of the northern hemisphere and very few extend southwards to the tropics. There are about 20 species in China, distributed throughout most of the country. Among them, ash is mainly produced in the northeast Xiaoxing'anling and Wanda mountain ranges, extending southwards to Changbai Mountain and Yanshan Mountain in Hebei Province, and is mostly distributed in valleys and slopes below 700 meters above sea level in the Xiaoxing'an Mountains. The distribution of ash trees is from the north of the northeast, south to Guangdong, Guangxi and Yunnan, east to Jiangsu, Zhejiang and Fujian, west to Sichuan and Guizhou, and can be seen in the mountainous areas at an elevation of 3,100 meters in western Sichuan. Taiwan's white wax is widely distributed in the river valleys of 800 to 2,000 meters above sea level in Taiwan. Xinjiang Ili River Valley is located at an elevation of 400-700 meters above sea level, Xinjiang white leaf wax is distributed, and the white-gun bar in the mixed forest of Yanshan Mountain in southeastern Yunnan is a light plant. It is sensitive to frost. Some species of saplings are more tolerant to shade, such as ash, suitable for warm and humid climates; some species are resistant to the extreme cold of -40°C, such as Xinjiang leaflets. Hi deep wet and fertile soil, intolerant of drought and thin, common in plains or valleys. Most species are resistant to light salt alkaline soils. Can be used seed, cuttings, buried bars and other methods of breeding. The method of operation differs depending on the local environmental conditions and economic purposes. For example, for the production of sprouts, the use of dwarf forests is often used to reproduce with cuttings; for the production of wood, seeds or cuttings are used to breed, and the forest is managed; if it is stocking white wax insects The production of insect paraffin wax is mainly based on cutting propagation. The main diseases are coal-fired disease and burdock disease; pests include tussock moth, white wax tip, a brown helmet, four-pointed hornbills, and small flowers.
Basal fertilization is required before the trees sleep and before they are planted. Applying topdressing during the growth of trees can be done according to the growth potential of the plants. The amount of fertilizer should be based on the age of the tree, the growing season, the source of fertilizer, and the physical and chemical properties of the soil. Generally, if the diameter of the arbor is below 15cm, compost should be applied every 3cm. Okg, with breast diameter greater than 15cm, composting every 3cm DBH 1.0～2. Okg. In order to enlarge the crown and observe the flowers during the young and middle-aged trees, the amount of fertilizer should be increased. The fertilization ring ditch should be dug first, and its outer diameter should be compatible with the crown width of the trees. The depth and width are 25-30cm. The type of fertilizer applied should be determined according to different requirements such as tree species, growing season and ornamental. In order to expand the crown width in the early stage, it is appropriate to apply nitrogen fertilizer. Phosphorus and potassium fertilizers should be added to the Guanhua Guan fruit tree species. Pay attention to the techniques of applying trace elements and fertilizing roots, and gradually promote the use of compound fertilizers. All types of green space for long-term accumulation of fertilizer should be wide open sources of fertilizer, mainly organic manure. Organic fertilizers should be cooked after application. Fertilization should be sunny; fertilization in addition to the root, fertilizer can not touch the leaves.
Stacking organic fertilizers to use Tribol's starter can speed up the decomposing speed of organic fertilizers and improve the fermentation quality of organic fertilizers. The addition of decomposed organic fertilizers after treatment with the golden baby starter is the basis for fertility improvement. Because organic fertilizer is a complete fertilizer, in the production of greenhouse vegetables, it can not only supply various nutrients necessary for crop breeding. , but also for the sustained high yield of agriculture, the activation of soil nutrients, improve the soil have a major role.
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