What kind of fertilizer should be applied to azaleas?

What kind of fertilizer should be applied to azaleas? Please give guidance to Azalea is a fertilizer-loving plant, in addition to nitrogen, phosphorus, potassium and other major nutrients, but also need boron, copper, molybdenum, zinc and other trace elements. Azaleas should use fertilizers with mild fertility and long fertilizer efficiency. Household cuckoos can use horns, sheep horns and animal hoof slices, which contain 12% 15% nitrogen and 0.2% phosphorus, as well as a small amount of potassium and trace elements. The thin hoof piece can be effective after 1 month, the thick hoof horn can be seen after 2 months, and the fertility can be maintained for 6 Mel for 8 months. When in use, it can be combined with changing the basin and pouring the basin to bury the hooves into the edge or bottom of the basin. Cake fertilizer is also a more comprehensive fertilizer. The nutrients of cake fertilizer generally contain 2.1% of nitrogen, 7.6% of phosphorus, 0.54%-3.3% of phosphorus, and 0.5%-2.7% of potassium. Generally speaking, bean cake and peanut cake contain more nitrogen, while rapeseed cake and cottonseed cake contain more phosphorus. It should be fully fermented before application. Fertilizers made from livestock manure and leaves can be mixed into the culture soil in combination with changing pots. The demand for fertilizer varies with different varieties of rhododendron. Among the cuckoo varieties in Dandong, Sihaibo, Shuanghong and Toad Peony use less fertilizer, while Fairy Dance, Wubaozhu and Fuguiji are more tolerant to fertilizer, and big-leaf rhododendrons are more tolerant to fertilizer. The fertilization of rhododendron should be based on the principle of thin application. Fertilization is generally carried out in spring and autumn, but not in winter. When changing pots in March and April in spring, flowering plants are treated with hoof flakes or manure once, and soybean cakes or horns are applied twice in May and June. During the rainy season, the fermented cake powder can be sprinkled on the basin surface and mixed with the topsoil. Apply thicker liquid fertilizer again in autumn. Generally 20 cm diameter flowerpot, the growth of exuberant plants throughout the year to use about 100 grams of bean cake fertilizer. Click to get more azaleas planting techniques click to get more flower planting techniques