Abstrakt

Humic Acid Extraction from Fecal Sludge Compostable Materials in Gicumbi Landfil

Nestor Uwitonze* , Abijuru Antoinette, and Muhizi Theoneste

Organic matter applied to the soil favors the development and growth of plants because it supplies macro- and micronutrients, reduces soil toxicity through heavy metal complexation, improves the physical and chemical characteristics of the soil and prevents nutrient loss by leaching. Organic fertilization of soil reduces or even precludes the need for agrochemicals and mineral fertilizers, the extensive use of which results in economic and environmental imbalances. Whenever possible, organic fertilization relies on the use of manure, culture alternation, green fertilization, composting and biological control of pests and diseases.