1. According to local conditions: For soils with high sulfur content and rust 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.
2. Due to temperature: the best temperature for the application of bacterial fertilizer is 25 °C ~ 37 °C, less than 5 °C, 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 should also be understood that the water content of the most suitable soil for Azotobacter is 60% to 70%.
3. Due to mixing: It should be noted 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 easy to kill. Dead 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 the mixing of manure with uncooked farmyard fertilizers.
4. Due to quantity adjustment: For fields where chemical fertilizers are applied for many years, fertilizers and organic fertilizers cannot be greatly reduced when biofertilizers are applied. Because crops have a dependence on chemical fertilizers, replacing nitrogenous fertilizers with biological bacterial fertilizers cannot be applied 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 potash can only make up for it and cannot be reduced.
5. Suitable for the time: Bio-fertilizer is not a fast-acting fertilizer, and it is best applied in the nutrition critical period of the crop and the 7 to 10 days before the nutrition absorption period.
frozen HLSO red shrimp
Hlso Red Shrimp,Frozen Hlso Red Shrimp,Fresh Hlso Red Shrimp,Fresh Frozen Hlso Red Shrimp
Zhoushan Junwei Aquatic Products Co., Ltd. , https://www.junweiaquatic-intl.com