In spring and autumn, Begonia should be fertilized with a small amount of fertilizer. In these two seasons, it is advisable to use inorganic fertilizer or organic thin fertilizer as fertilizer.
If the temperature is above 25 ℃ in summer, fertilization is not allowed. Below 25 degrees, fertilizer can be applied once a week for two consecutive weeks. Fertilization time from the last flowering after the start, so that the four seasons Begonia in the next bloom.
In the seedling growth period of Begonia, nitrogen fertilizer should be mainly used to increase the amount of fertilizer. Nitrogen fertilizer can promote the growth of the branches and leaves of Begonia.
In the flowering stage of Begonia, phosphate fertilizer should be used as the main fertilizer, and the amount of fertilizer can be increased properly, which can make the flowers of Begonia delicate and bright, and increase the number of flowers. If there is no fertilizer supply during this period, it can cause the whole plant to wither, and even die in serious cases.
During the growth period of Begonia, fertilizer should be applied once every 10 days to half a month. The fertilizer mainly consists of 20% rapeseed cake water and bean cake water that have been fermented. If the fertilizer has not been fully fermented, fertilizer damage will occur, which will cause the leaves of Begonia to dry and scorch, or even the whole plant to die.
After each application of fertilizer to Begonia, spray water on its branches and leaves with a watering can to prevent fertilizer splashing on the branches and leaves of plants, causing the branches and leaves to turn yellow.