What kind of fertilizer is good for azaleas?
Rhododendron is a fertile plant, in addition to nitrogen, phosphorus, potassium and other major nutrients, but also need boron: copper, molybdenum, zinc and other trace elements. Azalea should use fertilizer with moderate fertility and long fertilizer effect. Cattle horns, sheep horns and animal hooves can be used for raising azaleas at home. These fertilizers contain nitrogen 12%~15%, phosphorus 0.2%~8%, and also contain a small amount of potassium and trace elements. The thin hoof can be effective after 1 month, and the thick hoof can be effective after 2 months, and the fertility can be maintained for 6-8 months. When in use, the hoof can be buried into the edge or bottom of the basin in combination with changing the basin and pouring the basin. Cake fertilizer is also a more comprehensive fertilizer nutrition, cake fertilizer nutrients generally contain nitrogen 2.1%-7.6%, phosphorus 0.54%-3.3%, potassium 05%-2.7%, generally speaking, bean cake, peanut nitrogen higher, rapeseed cake, cottonseed cake and other phosphorus more. Fermented well before application. Manure made from animal dung and leaves can be mixed with human culture soil in pots.
Different azaleas have different fertilizer requirements. In Dandong, the azalea varieties, such as Sihaibo, Shuanghuahong and Toad Peony, need less fertilizer; Fairy Dance, Wubaozhu and Fugui Ji are more resistant to fertilizer; Big Leaf Azalea is more resistant to fertilizer.
Rhododendron fertilization should be in line with the principle of thin and frequent application. Fertilization is generally carried out in spring and autumn growth peak period, and winter is generally not fertilized. Flowering plants in spring in March and April when the pot application of a hoof or manure, May and June application of 1 - 2 times cake or hoof fertilizer, rainy season can be fermented cake fertilizer powder scattered on the pot surface and topsoil mix. Apply a thicker liquid fertilizer again in autumn. Generally 20 cm diameter flowerpots, vigorous growth of plants throughout the year with fertilizer for about 100 grams of bean cake fertilizer.
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What kind of soil is rhododendron suitable for?
The choice of soil is very important for the growth and development of rhododendron. There are many methods for the cultivation of rhododendron, which vary from variety to variety, but they must have the following conditions: loose, unobstructed drainage, good ventilation, acidic soil, rich humus and sufficient base fertilizer. Usually azaleas thrive when living in acidic loam. If they are in alkaline soil, they soon die of leaf yellow exhaustion. Rhododendron is regarded as an indicator of acidic soil. Generally speaking, rotten leaf soil belongs to acid soil, and pine leaf humus soil is the best, which is planted du.
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What should be paid attention to when turning the azaleas into pots?
Azalea cuttings should be put on the pot if they survive. In flowerpots, mud pots with good permeability are the best, purple sand pots are the second, and glaze pots and porcelain pots are the worst. When going up the pot, you should pay attention to the size of the flowerpot and avoid small seedlings with large pots. If the basin is too large and the basin soil does not exist for a long time, the ventilation will be bad, and the root system is not easy to reach the basin wall, affecting the development of seedlings. General cuttings can choose a mud pot with a diameter of about 10 centimeters, and then turn into a flowerpot on the left side of 15 centimeters a year later. When putting on the basin, you should pay attention to making the drainage layer and cover the drainage hole with tiles before putting it.
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