Citrus variable soil testing and formulated fertilization method for increasing application of organic fertilizer and reducing amount of chemical fertilizer

The invention discloses a citrus variable soil testing and formulated fertilization method capable of increasing organic fertilizer application and reducing chemical fertilizer application. The method comprises the following steps: S1, soil sampling; s2, soil analysis; s3, crop demand; s4, climate characteristics are known; s5, adjusting nutritional requirements according to climate characteristics; s6, fertilization calculation; s7, fertilization scheme: determining a reasonable fertilization scheme according to a fertilization calculation result, wherein the reasonable fertilization scheme comprises a fertilizer type, fertilization time and a fertilization mode; and S8, fertilization management. Through the fertilization method of increasing the organic fertilizer and reducing the chemical fertilizer, the soil environment for citrus planting can be effectively improved, the citrus quality is improved, the yield is increased, the load of the agricultural environment is reduced, and sustainable industrial dev