1、 Fertilization method

1. Application of base fertilizer: it is necessary to add base fertilizer to the soil when the iron armor ball is put on the basin or changing the basin. Generally, a part of rotten bone meal is added to the soil before being put into the pot. Only when there are enough nutrients in the soil used can the growth of plant roots be promoted

2. Topdressing: during its growth period, it needs to add fertilizer regularly. Usually, when it comes to the peak growth season, fertilizer should be added to it once a month. If the growth of the plant is very poor, it needs to be fertilized less and the interval can be longer. Don't be too close to its roots when applying fertilizer, so as not to burn its roots with the heat of fertilizer

2、 Precautions

1. When giving the armor ball, the soil should be too dry as far as possible, and the soil should be kept slightly moist, otherwise the roots of the plant will not absorb nutrients

2. When applying fertilizer, the concentration of fertilizer should be well controlled, and the concentration of fertilizer should be lower. If the fertilizer applied to it is too thick, it is very likely to burn the root of the plant