Eggplant is a common vegetable crop, which needs proper fertilization to ensure its growth and yield. The following are some suggestions on the fertilization time and amount of eggplant. Fertilization time: Eggplant needs different nutrients at different growth stages. Generally speaking, eggplant needs more nitrogen fertilizer at the initial stage of growth, but needs more phosphorus and potassium fertilizer at the fruiting stage. Therefore, the fertilization time of eggplant should be adjusted according to its growth stage and required nutrients. 1. Fertilization before planting: Apply base fertilizer about one month before planting to fully provide nutrients for eggplant. 2. Early growth stage: nitrogen fertilizer can be properly applied within 2 weeks after eggplant seedlings germinate. At this time, diammonium phosphate, urea and compound fertilizer should be given priority to. 3. Fruiting period: After eggplant enters the fruiting period, more phosphorus and potassium fertilizers should be applied. Diammonium phosphate and calcium superphosphate can be selected as phosphate fertilizer, and potassium chloride and potassium sulfate can be selected as potassium fertilizer. Fertilization amount: The fertilization amount of eggplant depends on soil fertility, eggplant growth stage and climate conditions. Generally speaking, the dosage per mu is as follows: 1. Base fertilizer: 40-60kg organic fertilizer or10-15kg compound fertilizer. 2. Pre-growth stage: Apply appropriate amount of nitrogen fertilizer per mu, such as diammonium phosphate, urea, etc., and the dosage should not be too much each time. 3. Fruiting period: increase the amount of phosphorus and potassium fertilizer applied per mu to promote fruit expansion and nutrient accumulation. Do not use too much at a time, otherwise the quality will be affected. In short, the fertilization of eggplant should be adapted to local conditions, and the time and dosage of fertilization should be determined according to different growth stages and needs. The correct fertilization method can ensure the growth and yield of eggplant and help enrich people's dining tables.