1. The best way to apply fertilizer to iron tree is in its growth period. Generally, between March and September, liquid fertilizer should be applied once a week. The concentration of fertilizer should be low, which is helpful for the more robust growth of plant branches and leaves. Fertilization must be a small number of times, each time the amount of fertilization can not be too much, if the plant can not absorb, it will occur rotten root phenomenon, not only can not play a fertilizer effect, but also affect its growth.
2. It is also necessary to apply fertilizer properly after entering may. At this time, it is necessary to apply some compound fertilizer to it. After entering autumn, it is necessary to stop fertilization, because its growth rate will slow down at this time, so it is necessary to apply less fertilizer, or stop fertilization directly.
When fertilizing during its growth, the fertilizer should be applied to the cultivated soil. Do not use too thick fertilizer or raw fertilizer. When fertilizing, do not contact the fertilizer with its branches and leaves. Once it is touched, spray some water, or its leaves will turn yellow. And, in the first 1 - 2 days before fertilization, do not water the plants, to keep the cultivated soil dry, so that the fertilizer effect is higher