HUMIC ACID APPLICATION FOR DURIAN TREES || BOLANG AGRO MALANG #humicacid #durian #criticalland

Peace be upon you, and blessings be upon you Humic acid is an organic substance with a complex, high-molecular-weight molecular structure (a macromolecule or organic polymer) containing active groups. In nature, humic acid is formed through physical, chemical, and biological processes from plant and animal sources through humification.