Recently, the author suggested that we should pay attention to the following aspects when applying fertilizer:
In accordance with local conditions, high-sulphur soil and rust paddy fields should not be used for 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.
The optimal temperature for the application of bacterial fertilizer due to temperature is 25°C-37°C, lower than 5°C and higher than 45°C, and the application effect is poor. It is not suitable for crop fields under high temperature, low temperature and drought conditions. At the same time, the water content of the most suitable soil for nitrogen-fixing bacteria should be 60%-70%.
Due to mixing, care should be taken that the bacterial fertilizer should not be mixed with fungicides, insecticides, herbicides and sulfur-containing fertilizers (such as potassium sulfate, etc.) and straw ash, because these drugs and fertilizers are very easy to 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 untransformed farmyard fertilizers.
Due to quantity adjustment, fertilizers and organic fertilizers cannot be greatly reduced when applying biofertilizer to fields where fertilizer is applied for many years. Because crops have a dependence on chemical fertilizers, the use of biological fertilizers to replace nitrogen fertilizer lands cannot be adapted at once. Therefore, The amount of substitution should be replaced by 30%, 40%, and 60% in the first, second, and third years respectively. Phosphorus and potassium fertilizers can only make up for it and cannot be reduced.
The time-based biofungus fertilizer is not a fast-acting fertilizer, and it is best applied in the critical nutrition period of the crop and the first 7-10 days of the nutrient absorption period.
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