Abstract: Embodiments of the present disclosure provide a method and system for generating a fertilizer formula, the method is executed by a processor, comprising: obtaining a basic formula for fertilization; obtaining monitoring data based on a monitoring device; determining a soil feature of a predetermined point based on the monitoring data; determining an experiment scheme and experimental parameters based on the soil feature and an experimental design; determining a fertilization dosage and conducting an intelligent planting experiment based on the fertilization dosage and the basic formula for fertilization; obtaining experimental parameters and experimental yield data of each experimental processing, and optimized yield data of an optimized fertilization processing, and storing the experimental parameters, experimental yield data, and the optimized yield data in a storage unit; and determining a model for reduced fertilization of nitrogen, phosphorus, and potassium nutrients and generating the fertilizer formula

Abstract: The present disclosure discloses a medium for primary isolation of Porphyromonas gingivalis, and a method for preparing the medium and use thereof. The medium for primary isolation of Porphyromonas gingivalis includes the following components in parts by weight: 10-20 parts of a mixed peptone, 5-10 parts of a yeast extract powder, 1-5 parts of sodium chloride, 10-15 parts of agar, 0.5-1.0 parts of glucose, 0.2-0.8 parts of sodium bicarbonate, 0.1-0.5 parts of an L-cysteine salt, 0.1-0.5 parts of soluble sodium pyrophosphate, 0.0001-0.0005 parts of hemin, 0.00001-0.00005 parts of vitamin K, 500-1000 parts of water and 5-10 parts of a sterile defiberized sheep blood. By adopting the medium for primary isolation of Porphyromonas gingivalis provided by examples of the present disclosure, a culture period of primary isolation of Porphyromonas gingivalis can be greatly shortened, and the primary isolation of Porphyromonas gingivalis can be quickly conducted.