1. Kind

Fertilization needs to control a lot of things. In addition to time, what we need to do is to control the amount and concentration. It has many roots, so it can absorb fertilizer, but it is afraid of fertilizer with high concentration, so generally we can't apply human manure to it. Alum fertilizer water is OK

2. Time

Fertilize it according to its growth period. Generally speaking, from March to may, when its branches, leaves and buds grow up, what we need to do at this time is to apply fertilizer to it once a week, so that it can have enough nutrition. From June to August, it enters semi dormancy due to Midsummer, so it's best not to apply fertilizer at this time, otherwise its leaves will fall down and may turn yellow, or even let diseases and pests invade. After September, it began to grow again. At this time, liquid phosphorus fertilizer was basically applied once every ten days, and the supply of fertilizer was stopped after October. If we don't stop fertilizing at this time, we can make the plant grow new leaves, but the leaves will be very fragile and it's very difficult to spend the winter

3. Seedling

Generally, fertilization is different for plants of different sizes. If it is only one to two years, it is not necessary to apply fertilizer, because there is enough fertilizer in the soil at this time. For plants of three to five years, from late spring to Midsummer, it can be considered to apply dilute fertilizer once in 15 days. In addition, if the plant has been four years old, dry cake fertilizer needs to be applied in spring and autumn, and the number is about 20g

What we should pay attention to is that if the plant has withered and yellow leaves, most of the reason may be that too much fertilizer is applied. Therefore, we should stop fertilization, dig out the dry fertilizer, and then water more to dispose of the accumulated fertilizer. After watering, move it to a windy place. If there is too much fertilizer, we need to wash it twice more. Generally, we can grow up normally after half a year