Humic acid is a natural substance that can be found in soil and plants. It has a significant role in the growth of plants, as it helps to regulate the plant’s immune system and provides them with nutrition. Humic acid is important for plant health because it increases the crop yield. It also helps to decrease the risk of crop disease, as well as providing plants with nutrients. Humic acid also plays an important role in agriculture because it regulates plant immunity and provides them with nutrition.