Why are microbial fertilizers becoming increasingly important?

From the perspective of soil health 
The long-term excessive use of chemical fertilizers has led many farmlands into a vicious cycle of getting thinner with each planting. Soil compaction has increased the difficulty of farming, the lack of organic matter has made crops unable to "eat enough", and the imbalance of microbial communities has made the soil lose its self-repairing ability. However, the emergence of microbial fertilizers provides an operational solution for soil health. 
Take the microbial agents frequently used by farmers as an example. These agents contain beneficial microorganisms such as Bacillus subtilis, photosynthetic bacteria, and actinomycetes, which can control the reproduction of harmful bacteria in the soil, reduce the occurrence of soil-borne diseases, improve soil structure, reduce the use of chemical nitrogen fertilizers, and increase nutrient utilization efficiency.

From the perspective of crop quality 
Although chemical fertilizers can quickly increase crop yields, they tend to cause a decline in crop quality, such as reduced sweetness of fruits and vegetables and poor texture of vegetables. In this era when consumers have increasingly higher demands for the quality of agricultural products, this has gradually lost its market competitiveness. 
The application of microbial fertilizers can promote the development of crop root systems and enhance the crop's adaptability. Even under adverse conditions such as drought and low temperatures, it can increase the crop's ability to absorb nutrients and water, and reduce the decline in quality caused by unfavorable environmental factors.

More importantly, the metabolic products of microorganisms can regulate the physiological processes of crops, increase the vitamin and sugar content in the fruits, and better meet the consumers' demands for green and high-quality agricultural products. 
In conclusion, the increasing attention given to microbial fertilizers is not accidental; rather, it is the inevitable outcome of their ability to address a series of planting production problems such as soil compaction and quality decline, and to respond to ecological demands. As technology continues to mature and the application scope expands, microbial fertilizers will not only become an important supplement to chemical fertilizers, but also are expected to become an important means for achieving high yield and quality in crop cultivation.