For plantations of plantain seeds, nitrogen, phosphorus and compound fertilizers need to be applied. Nitrogen and phosphorus fertilizer can be made from human and animal manure and animal and plant residues, which can improve soil properties and crop quality. Compound fertilizer can promote protein synthesis and improve the ability of plantain to resist diseases, pests and cold. Some base fertilizer needs to be applied before planting. Topdressing is required every 18 days at the seedling stage, and fertilization needs to be increased appropriately at the growth stage. 1、 In order to improve the yield and quality of plantain, organic fertilizer and multi-element compound fertilizer rich in nutrients can be reasonably applied to achieve the purpose of nutritional balance. Organic fertilizer can maintain the early growth of plantain, but after a period of time, it is necessary to apply compound fertilizer with rich nutrient content. This will make them grow better. 2、 How to fertilize plantain 1. Base fertilizer: a certain amount of base fertilizer needs to be applied to plant plantain to provide sufficient nutrients for their growth. The way of fertilization is to sprinkle fertilizer, that is, to sprinkle fertilizer evenly on the soil and make them blend evenly with each other. The implementation of this kind of fertilizer mainly uses organic fertilizer as base fertilizer to improve soil fertility.
2. Fertilizer for seedling stage: plantain can apply fertilizer every 18 days or so. At the seedling stage, the root system of plantain is not developed enough. The fertilizer can be diluted and covered with a slightly thinner fertilizer.
3. Fertilizer for growth: after the rhizomes of plantain mature gradually, their demand for fertilizer will increase a lot. At this time, the breeder needs topdressing. The method of hole application can be adopted, and the fertilizer can be buried in the cave with the root system of 3-4cm.
4. Fertilizer for maturity: when plantain seeds grow to the later stage, their roots will grow to a more developed degree. Therefore, no fertilizer can be applied during this period. （CheQianZiShiShenMeFei）