1, nodule fungus fertilizer. Used in legumes, generally used as a seed dressing. 30-40 grams per 667 square meters, add the appropriate amount of water to adhere to the seeds. Requirements with the broadcast with the broadcast, avoid drying and direct sunlight. More than 48 hours should be re-dressed. When the crops are found to have poor nodulation after emergence, they can be watered with rhizobial fertilizer near the seedlings. For pesticides that have been disinfected with pesticides, they should be disinfected 2-3 weeks before the rhizobia are mixed. 2, nitrogen-fixing agents. All kinds of crops other than leguminous crops such as wheat, corn and vegetables can be applied. Can be used as base fertilizer, topdressing, or used to pick roots and seed dressings. Can not be used together with strong acid, alkali or bactericidal pesticides and fertilizers. Nor can it be applied simultaneously with large amounts of nitrogen fertilizer, at least 10 days apart. However, combined application of organic fertilizers, phosphorus and potash fertilizers will promote the activity of nitrogen-fixing bacteria. Use 0.5-1 kg per 667 square meters, first wet the seeds of the crop with water, and sprinkle the bacteria and mix well. It is best to mix it with bran, corn, and phosphate, and pour the seeds into the mix. . When topdressing, it can be mixed with soil excrement and applied in the vicinity of the plant. 3, antibacterial agents. It can reduce the rotten roots of crops, increase the rate of emergence, and promote growth to promote early maturity. It also has certain inhibitory effects on some underground pests. Wheat and beans can be dressed with bacteria powder. First wet the seeds with water, use 30-50 grams of bacterium powder per 667 square meters, mix well, and add 5-10 parts of the fungus powder, mix it with 10 parts of cake flour and 100-300 parts of cake soil fertilizer. For basal or top dressing, use 100-250 kg per 667 square meters, and mix with superphosphate for good fertilizer effect. Can be mixed with pesticides but not with fungicides. Ammonium sulphate, ammonium nitrate, and ammonium bicarbonate have inhibitory effects on them and can be used for more than 10 days after application. 4, phosphorus bacteria agent. Generally, it can be divided into two kinds: one is organophosphorus bacteria, with the help of enzymes produced in the life activities of bacteria, to transform the hard-to-utilize organic phosphorus into a form that can be used by plants; the other is inorganic phosphorus bacteria, which is produced by it. Acids enhance the dissolution of insoluble phosphates in the soil. It can be used as a basal fertilizer or mixed with nitrogen-fixing bacteria and antibacterial agents. 5, potassium agents. Wide range of applications, wheat, corn, vegetables and other crops can be applied. Used as base fertilizer, 25 kg per 667 square meters; used for seed dressing, 5 kg per 667 square meters, mixed with dry fine soil into a thin paste seed dressing; used as top dressing, mixing 20 kg of fungus fertilizer and 2,500 kg of pig manure, The application or hole is applied in the sowing ditch. Immediately after application, cover soil and keep it in a dark and moist state. Combined with other cultivation measures, such as timely irrigation and drainage, cultivating loose soil and so on. China Agricultural Network Editor