Older Soils May Need a Kickstart with Humic Acid

Humic Acid, 8%, Cold Water Processed. Humic acids are found when organic matter is composted and converted to humus.They are depleted in older soils that have been cropped. You may need to rejuvinate them.
A study conducted at Ohio State University concluded that “humic acids increased plant growth” and plants had “relatively large responses at low application rates”. Humic acids are natural soil chelates,

improve soil chemistry and uptake of nutrients, particularly calcium, magnesium and iron.

This may be what is needed for older soils where plants are exhibiting poor growth even when fertilizers are applied. Use 2 to 3 oz per 25 gallons.

More information about humic acids