It is best to apply fertilization to seedlings by applying base fertilizer and proper topdressing. The base fertilizer is carried out in the soil tillage. Generally, the soil manure pig manure and duck manure are fully fermented, and the dosage per acre is 2000--5000 kg. Topdressing is generally based on chemical fertilizers, mainly based on ditch application and water application. In the early period from February to June, N fertilizer was the main factor, and in the later stage, P and K fertilizers were the main. The amount of seed per acre depends on the size of the seedlings. For the annual grafting of magnolia, about 20 kg of urea per acre or 50 kg of compound fertilizer. If you give it, the loss of chemical fertilizer is more, and it is generally not used.
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