Fertilization in spring and Autumn:
When applying fertilizer in spring and autumn, four seasons Begonia should be applied with the principle of small amount and more application. In these two seasons, when inorganic fertilizer or organic thin fertilizer is used as fertilizer, it is appropriate to use liquid fertilizer p>
Fertilization in summer:
In summer, if the temperature reaches more than 25 ℃, fertilization is not allowed. When the temperature is below 25 degrees, fertilizer can be applied once a week for two consecutive weeks. The fertilization time starts after the last flowering period, which will make the four seasons Begonia bloom at the second time p>
Seedling fertilization:
In the seedling growth period of four seasons Begonia, nitrogen fertilizer should be mainly used, and the amount of fertilizer can be appropriately increased. Nitrogen fertilizer can promote the growth of branches and leaves of four seasons Begonia p>
Fertilization during flowering:
In the flowering stage of four seasons Begonia, phosphorus fertilizer should be mainly used, and the amount of fertilizer can be appropriately increased, which can make the flowers of four seasons Begonia delicate and bright, and the number of flowers will increase. If the fertilizer is not supplied during this period, the whole plant will wither and even die in serious cases p>
Fertilization during growth period:
During the growth period of four seasons Begonia, fertilizer should be applied once every 10 days to half a month. The fertilizer is mainly 20% of rotten and fermented rapeseed cake water and bean cake water. If the fertilizer is not fully fermented, fertilizer damage will occur, which will lead to the dry scorch of the leaves of four seasons Begonia and even the death of the whole plant p>
Precautions for fertilization:
After applying fertilizer to the four seasons Begonia every time, spray water on its branches and leaves with a watering can to prevent fertilizer from splashing on the branches and leaves of the plant, resulting in yellowing of the branches and leaves p>