Humic acid
Humic acid is a complex organic acid that is present in soil, peat, and coal, formed from the decomposition of vegetation matter. It is responsible for much of the color of surface water. Because of its vegetative origin, this material is very rich and beneficial to plants and gardens.
Almost anything that grows will benefit from humic acid. It increases nutrient uptake, drought tolerance and seed germination. It increases the microbial activity in the soil, making it an excellent root stimulator. Humic acid increases the availability of nutrients that are already in your soil and will naturally aerate the soil. It also will help to lower the pH of your soil and helps flush high levels of salts out of the root zone.
If you use humic acid, your plants and grass turf will have a healthier green color, and smaller amounts of fertilizer will be needed throughout the year to keep them green. It helps support root development in plants and can also help increase the yield of fruit trees and vegetables. Humic acid is actually somewhat of a “professional secret”-it has been used by landscapers and golf course managers for years.