The adaptability of Acorus calamus in growing season is strong, and extensive management is enough. Acorus calamus likes nitrogen fertilizer, the best fertilizer is water of bean cake, which can avoid burning seedlings, and nitrogen fertilizer can promote its growth. In the later stage, it needs to apply topdressing 2-3 times, combined with fertilization and weeding. In the early growth stage of Acorus calamus, nitrogen fertilizer should be mainly applied, and before heading and flowering, phosphorus and potassium fertilizer should be applied to enhance the immunity of Acorus calamus. Pay attention to burying the fertilizer on the soil surface for about 5cm every time when applying fertilizer, and pay attention not to be too close to the root to avoid burning the root. Before overwintering, it is necessary to clean up the dead branches and leaves on the ground, and make clear the pathogen of diseases and insect pests.
