Precautions for using microbial fertilizer

1. Choose products that are of qualified quality and cannot be used after the expiration date. Bacterial fertilizer must be stored in a low temperature (optimum temperature 4-10°C), cool, ventilated, and dark place to avoid failure. Some strains require a specific temperature range. For example, Trichoderma harzianum needs to be stored in a constant temperature box at 2-8°C and has a validity period of one year. Some Bacillus species need to be stored in a constant temperature box at 2-8°C, while some Bacillus species require a specific temperature range, mainly based on the level of sporulation. The higher ones can be stored for a year and a half or even longer, while the ones with poor sporulation will become ineffective in less than half a year, so vegetable farmers should choose bacterial fertilizer products carefully.
Don't choose expired products just for cheap. Such biological bacteria content is very small and loses its efficacy. Generally, biological bacteria fertilizers that are more than two years old should be chosen carefully.
2. Choose the method of use according to the characteristics of the bacteria.
It is recommended that when using biofertilizer, the available methods of base application include: broadcast application, ditch application, and hole application. You can also spread part of the fertilizer, and the remaining part can be applied in holes for better results.
It is not recommended to apply bio-fertilizer as it will not be effective, but it can be used for root irrigation, mainly for liquid bio-fertilizer.
3. Minimize the death of microorganisms.
During the application process, direct sunlight should be avoided; when dipping the roots, add an appropriate amount of water to ensure that the roots are completely absorbed. After dipping the roots, they should be transplanted and covered with soil in time, and should not be mixed with pesticides or chemical fertilizers. Especially now, many vegetable farmers use pesticides to irrigate the roots to prevent and control root and stem diseases, such as carbendazim, doxepin, copper sulfate and other agents, fungi, Bacteria can be prevented and treated, but it also has a killing effect on the beneficial bacteria in the bacterial fertilizer. Therefore, it is recommended not to use pesticides to irrigate the roots after using bacterial fertilizer.
4. Provide a good breeding environment for biological bacteria.
The bacteria in the bacterial fertilizer can only effectively reflect the function of the bacterial fertilizer after it has been propagated in large quantities and formed in a large scale in the soil. In order to allow the bacteria to multiply as quickly as possible, it is necessary to provide them with a suitable environment.
1. Suitable pH value. Generally, bacterial fertilizers are less effective when applied directly in acidic soil. For example, silicate bacteria need to survive in soil with a pH of 7-8, so lime, plant ash, etc. must be applied in conjunction with it to enhance the activity of microorganisms.
2. Microbial growth requires sufficient water, but too much water will cause poor ventilation and affect the activity of aerobic microorganisms. Therefore, timely drainage and irrigation must be paid attention to to maintain an appropriate amount of moisture in the soil.
3. Most of the microorganisms in biofertilizers are aerobic, such as rhizobia, autogenic nitrogen-fixing bacteria, phosphorus bacteria, etc. Therefore, the application of bacterial fertilizer must be combined with soil improvement and reasonable farming to keep the soil loose and well-aerated.
5. When using biofertilizer, sufficient organic fertilizer must be invested.
Organic matter is the main energy source for microorganisms, and the decomposition of organic matter can also supply microbial nutrients. Therefore, when applying biofertilizers, organic fertilizers must be used together. Therefore, when vegetable farmers use bacterial fertilizers, they should apply them together with organic fertilizers such as manure. This can not only speed up the decomposition of organic fertilizers, but also promote the formation of bacterial flora and provide the fertilizer effect of bacterial fertilizers. . Therefore, sufficient nitrogen, phosphorus, potassium and trace elements must be supplied. For example, in the early stages of the growth of leguminous crops, an appropriate amount of nitrogen must be supplied to promote crop growth and root nodule development and increase nitrogen fixation; applying phosphorus fertilizer can play the role of "increasing nitrogen with phosphorus"; an appropriate amount of potassium and calcium nutrition is beneficial to the growth of microorganisms. Propagate in large quantities; molybdenum is an essential element for the synthesis of nitrogenase by rhizobia. The combined application of molybdenum fertilizer and rhizobia fertilizer can significantly improve nitrogen fixation efficiency.
6. Biological bacteria should not be used together with nitrogen, phosphorus and potassium fertilizers.
Biological bacteria are suitable for use with organic matter, but when used with compound fertilizers such as nitrogen, phosphorus and potassium, they can kill some microbial bacteria and reduce fertilizer efficiency.