#$%^&*AU2020100477A420200430.pdf#####Abstract The invention relates to the technical field of fertilizers, in particular to a formula fertilizer for early fruiting and high yield of young walnuts in mountainous dryland and a fertilization method thereof, including proportion of nitrogen, phosphorus, potassium and organic matter, and fertilization time and method. The method is particularly suitable for planting young walnuts no more than 8 years old. The soil nutrient characteristics and leaf mineral nutrition of walnut orchard in main production area are determined and analyzed by investigating the fertilization status in different production areas of northwest mountain dry walnut. Different treatment fertilizer formulas and fertilization methods are set, growth status of walnut tree and fruit yield quality are investigated and determined, and different formulas of fertilizers are applied according to the nutrition characteristics of young walnut trees in different growth and development periods. Nutrients required by walnut growth and development are met, fertilizer waste is reduced, and production cost is reduced. Soil nutrient loss and soil environmental pollution are reduced, and the purposes of effectively improving walnut yield and increasing farmers' income in mountainous areas are achieved.
