I Fertilization time:
Sijigui likes big fertilizer. After early spring every year, when the temperature at night can reach 15 ℃, it can be fertilized. At this time, it is the earliest time for the growth of four seasons osmanthus, which needs a lot of nutritional supplement. Fertilizer can be applied every half a month from April to may, and at least seven to ten days from June to July. When it comes to early August, it will be the last time to fertilize sijigui, which can promote the growth of sijigui and make its flowers more and fragrant. You can choose some rotten fertilizers such as chicken, duck and pigeon feces and bone meal. If the amount of fertilizer applied is too small, it will affect the growth of sijigui, which will not only reduce its branches and leaves, but also reduce its flowering, but also weaken its aroma. If it is to apply fertilizer to Hefei, you can drill several evenly distributed holes around the potted soil of sijigui, and then put the compound fertilizer into the holes and cover them with soil. Generally, it takes ten to fifteen days to apply fertilizer, and there is no need to continue fertilization until the temperature drops below 8 ℃ at night p>
II Method of fertilization:
Sijigui likes the slightly acidic soil rich in humus. At the same time, the drainage of the soil must be good. The nutrient soil for cultivating sijigui can be made by mixing humus soil, sandy soil and livestock manure evenly. In the growth period of sijigui, ferrous sulfate solution should be sprayed every half a month, which can make the branches and leaves of sijigui grow more green. At the early stage of flowering, more fertilizer and water containing nitrogen, phosphorus and potassium diluent should be applied, which can make the flowers of four seasons osmanthus larger and more fragrant p>
III Precautions for fertilization of Osmanthus fragrans:
Although sijigui likes big fertilizer, organic fertilizer with a large amount of rotten substances or inorganic fertilizer with a particularly high concentration can not be applied too much at one time, but can be applied a small amount for many times p>