There are many different types of bacteria that can be added to compost soil. Some of the most beneficial bacteria include:

• Aerobic Bacteria:These bacteria break down organic matter in the presence of oxygen. They are essential for the composting process, as they help to convert organic matter into humus, which is a nutrient-rich soil amendment.
• Anaerobic Bacteria:These bacteria break down organic matter in the absence of oxygen. They are not as important for the composting process as aerobic bacteria, but they can play a role in the decomposition of certain materials, such as wood.
• Actinomycetes:These bacteria are like fungi and are known for their ability to break down tough materials, such as lignin and cellulose. They are also important to produce antibiotics and other beneficial compounds.
• Nitrogen-fixing Bacteria:These bacteria convert atmospheric nitrogen into a form that plants can use. They are essential for the health of plants and the nitrogen cycle.
• Phosphorus-solubilizing Bacteria: Soybean meal is a by-product of the soybean industry and is a good source of nitrogen, as well as other nutrients like phosphorus and potassium. It typically contains around 7-8% nitrogen.