Bat droppings, also called guano, is primarily used as a fertilizer for gardening. Bat droppings have a high level of nitrogen, which is the component responsible for helping plants, flowers and vegetables grow tall and lush.
There are a few different ways to use guano as a fertilizer. One way is to combine it with top soil and work it into the garden bed or sprinkle it on top of the soil. Another way is to let it soak in a gallon or more of water and use the mixture for watering plants. This method allows the bat droppings to penetrate the soil and reach the roots of the plants, providing more nitrogen to the roots.