"Bacterial fertilizer" is a non-environmental pollution-free new-type compound biological fertilizer that is obtained from the natural nitrogen-fixing active strains and has been scientifically formulated and combined. In the application process should use the following five strokes: Local conditions. For high-sulfur soils and rusted paddy fields, it is not appropriate to apply biological bacterial fertilizers because sulfur can kill biological bacteria. For flooded paddy fields, it is generally not applied, and the spray method is more effective. Due to warmth. The optimum temperature for applying the bacterial fertilizer is 25-37°C, which is lower than 5°C and higher than 45°C. The application effect is poor. It is not suitable for crop fields under high temperature, low temperature and drought conditions. At the same time, it is also necessary to know that the moisture content of the soil with the optimum temperature of nitrogen-fixing bacteria is 60%-70%. Due to mixing. It should be noted that bacterial fertilizers should not be used in combination with fungicides, insecticides, herbicides, and sulfur-containing fertilizers (such as potassium sulfate, etc.), and straw ash, because these drugs and fertilizers can easily kill biological bacteria. Or apply the fungicide first, after 48 hours, then weeding and weeding. If seed dressing, do not mix with seeds that have been mixed with fungicide. It should also prevent mixing with uncontaminated farmyard fertilizers. Due to quantity. For the fields where chemical fertilizers are applied for many years, fertilizers and organic fertilizers cannot be greatly reduced when biological fertilizers are applied. Because crops have a dependence on chemical fertilizers, replacing nitrogen fertilizers with biological bacterial fertilizers cannot be applied at one go. Therefore, the amount of substitution should be done. By replacing the 30%, 40%, and 60% in the first, second, and third years, respectively, phosphorus and potash can only make up and cannot be reduced. Timely. Biological bacterial fertilizer is not a fast-acting fertilizer, and it is best applied at the critical period of nutrient nutrition and the period of 7-10 days before the large amount of nutrient absorption. China Agricultural Network Editor
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