Small trees in Li Ziyi need little fertilizer, so it is enough to apply farmyard manure or organic fertilizer. The roots of young trees are not very developed within one year. Applying farmyard manure can make the soil loose, the root system developed and the seedlings strong. Young trees had better be farmed. The comprehensive effect of farm manure makes the trees grow well. There is a plum tree in my home, where cows used to be tied. The tree grows super well and bears fruit in the third year. This year is another bumper harvest year. Base fertilizer: generally, farmyard manure is the main fertilizer, such as compost crop straw, green manure, fallen leaves and so on.

Appropriate amount of available nitrogen fertilizer can be added to the base fertilizer to meet the early spring germination of plum trees. Plum trees absorb a lot of nutrients from the soil every year after planting. In addition to nitrogen, phosphorus and potassium, these nutrients also need a variety of trace elements such as calcium, magnesium and iron. Phosphorus and potassium fertilizer should be applied to plum trees when they are young, and nitrogen fertilizer can be applied when they are full of fruit. For example, some pesticide fertilizers, oxygen fertilizers and amino acid foliar fertilizers. Be used. The yield of planted plums is closely related to the soil environment. I found that the plums planted under long-term sunshine are not so clear in taste. In addition, the growth of plum trees has two key periods. That is, the organic nutrition accumulation period (July ~1October) and the storage nutrition consumption period (mid-February to late April), in which the nutrition consumed in the storage nutrition consumption period mainly comes from the base fertilizer applied in autumn and the fertilizer used for the third time after harvest, and in spring.

Because after spring, plum trees will sprout, spread their leaves and bloom. At this time, the amount of fertilizer used is relatively large, and the amount of fertilizer needed is large. At this time, we apply a little quick-acting nitrogen and phosphorus fertilizer to plum trees: promote crop root development and enhance cold and drought resistance; Promote the early maturity of crops, increase the number of grains per ear and the number of full grains. If the young trees grow well, it is suggested to apply more potassium fertilizer.

Generally speaking, after fruit picking, base fertilizer, also called base fertilizer, is used at this time. Mainly organic fertilizer, phosphate fertilizer, organic fertilizer mixed application, but also a small amount of available nitrogen fertilizer can be added.