  The period of fertilization should be based on the phenological period of the eucalyptus and the type of fertilizer.  Â
   1 . Autumn application base fertilizer  It refers to collecting the fruit fall from the front (September to October) organic fertilizer into the soil freezing application. In basal manure, compost, manure and human excrement, urine based, is longer supplied tree based multi INGREDIENTS fertilizer. At the same time, it is necessary to add an appropriate amount of nitrogen, phosphorus and potassium compound fertilizer. Organic fertilizer material, can improve soil porosity, loose soil, soil and fertilizer fusion accelerator, to improve the soil water, fertilizer, gas, thermal conditions, it is advantageous to microbial activity. Especially in the early autumn, the base fertilizer is applied, and the decomposition time of organic matter is longer. It is not only highly mineralized, but can be used for root absorption and utilization in spring. It can also promote flower bud differentiation, improve flower bud quality and enhance wintering of trees . Protect the ground temperature and prevent frostbite in the rhizosphere. If the fall is too late to apply the base fertilizer, the spring can be applied to the spring before the germination. However, in spring, the application of base fertilizer is slower, and it often fails to meet the growth needs of eucalyptus in early spring, and later causes the shoots to grow again, affecting flower bud differentiation and fruit development.  Â
   2 . chase  fat  Topdressing can not only make the tree strong in the past, but also obtain high-yield, high-quality fruits, and lay a good foundation for the growth results of the coming year. It is an indispensable fertilization link for the increase of eucalyptus. Hazel general fertilizer twice: the first time in late May to early June. At this time, it is the fruit ovary expansion period and the new shoot growth period; the second time is from early July to mid- July . Due in early June to mid-July early as nuts and rapid development of flower buds begin differentiation, dressing for fruit growth and development during this period, flower bud, full extremely important branches. In addition, according to the needs of tree growth and development, foliar spray fertilizer can also be used.
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