Biological bacterial fertilizer is becoming more and more important in vegetable cultivation, but the method of using biological bacterial fertilizer must be proper to allow biological bacterial fertilizer to play its due role.

1. The quantity is sufficient. After the biological bacterial fertilizer is applied to the soil, the microbial bacteria will have a process of adaptation, growth, and reproduction. The effective bacteria will not take effect until a certain number of effective bacteria have multiplied in the soil. It is necessary to insist on long-term and sufficient application.

2. Avoid using under high temperature and drought conditions. The best temperature for the survival of microorganisms is 22℃～35℃, below 5℃ and above 40℃, its activity is greatly reduced.

3. Avoid strong sunlight. Ultraviolet rays have a strong killing effect on bacteria in biological bacteria products. No matter whether it is stored or used, biological bacteria fertilizer should not be exposed to strong light.

4. Replenish water in time. The reproduction of biological bacteria, especially the reproduction of bacteria, cannot do without water, so the soil must maintain a certain humidity to facilitate the reproduction and expansion of biological bacteria, but the soil should not be too wet.

5. Enough organic fertilizer. Organic fertilizer provides a large amount of organic matter and nutrients for the survival of microbial bacteria. These nutrients are also more conducive to vegetable absorption under the decomposition of beneficial bacteria.

6. Suitable soil pH value. The pH value is acid or alkaline, which is not conducive to the survival and reproduction of biological bacteria. Therefore, it is necessary to adjust the physical and chemical properties of the soil by applying more organic fertilizers, applying more formula fertilizers, deep plowing the soil, and timely tillage, and adjusting the pH value of the soil between 6.5 and 7.5 by applying soil conditioners.

7. Don't rely too much on biological bacterial fertilizer. Microbial agents and biological organic fertilizers do not contain inorganic nutrients. If the content of nitrogen, phosphorus and potassium in the purchased compound microbial fertilizer is low, part of the compound fertilizer needs to be supplemented.

8. Control the use time and dosage of fungicides. After applying the biocide, consider the impact on the microbes when applying the fungicide, try to make the interval between the two as long as possible, and appropriately reduce the amount of the fungicide.

9. Pay attention to mixing soil when applying acupoints. Biological bacterial fertilizer should be mixed with the soil, and the seedlings should not be directly planted on the fertilizer and then buried in the soil. Otherwise, the heat generated during the mass propagation of biological bacteria will burn the root system and cause the root system to brown and die. If the bacterium fertilizer is applied to the soil where the manure has not been decomposed, it must be mixed evenly, because the heat released during the rapid decomposing of the manure will affect the growth of the root system.

10. Pay attention to the shelf life. Limited by the current level of fertilizer production technology, the shelf life of most microbial fertilizers is one year. If the shelf life is exceeded, the dormant state of the bacteria may be destroyed, and the number of live bacteria may be greatly reduced. Even if the dormancy is not destroyed, the storage time is long. In addition, the activity of effective bacteria will also be greatly reduced.

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