There are ways to apply fertilizer for high yield of lotus root.

The growth and development of lotus root can be divided into three stages: sprouting stage, flourishing stage and lotus root stage. The new root of lotus root grows after standing leaves, which mainly depends on the stored nutrients of lotus root; in the prosperous period, from the standing leaf of the plant to the beginning of lotus root, the nutrient demand is large, which is the key period of topdressing fertilizer; from lotus root to harvest, lotus root and lotus seed develop synchronously, and nutrient absorption decreases. Most of the nutrients in stems and leaves are transferred to lotus roots and lotus seeds. Therefore, fertilizer should be applied for a total of three times. Before planting lotus root, turn the base fertilizer into the field, generally apply 2000-3000 kg of rotten high-quality farm manure and 40-50 kg of general compound fertilizer. There are two times of topdressing. The first time was standing leaf fertilizer, when 3 or 5 standing leaves appeared in the field, 25kg / mu nitrogen-phosphorus compound fertilizer was applied, and the second was 30kg / mu when standing leaves were full. In addition, the fertilization of shallow water lotus root field is different from that of deep water lotus root field, shallow paddy field can apply both compound fertilizer and simple chemical fertilizer. Drainage before application, fertilization in shallow water, and restoration of water layer two days after application. In deep paddy fields, it is better to mix compound fertilizer with soil to prevent fertilizer from floating.