The practice of agriculture has always been a source of food production. The increase in the global population leads to improvements in agriculture, increasing crop quality and yield. Plant growth results from the interaction between roots and their environment, which is the soil or planting medium that provides structural support as well as water and nutrients to the plant. Therefore, good soil management is necessary to prevent problems that will directly affect plant health. Integrated crop management is a pragmatic approach to crop production, which includes integrated pest management focusing on crop protection. Currently, there is an extended idea that many microorganisms, such as fungi or bacteria, are useful in agriculture since they are attractive eco-friendly alternatives to mineral fertilizers and chemical pesticides. The microbes that interact with the plants supply nutrients to crops, control phytopathogens and stimulate plant growth. These actions have beneficial implications in agriculture. Despite the great benefits of microorganisms in agriculture, their use has been quite limited; however, there has been great growth in recent years. This may be because more progress is needed in field applications. One of the most employed genera in agriculture is Bacillus since it has several mechanisms to act as biofertilizers and biopesticides. In this review, the role of beneficial microorganisms, with special emphasis on the Bacillus genus, in soil and plant health will be discussed, highlighting the recent advances in this topic.

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