Soil Fertility and Nutrient management (1+1)

Products of Decomposition of organic matter

• Under well drained, aerated (oxidised) soil: CO₂, NO-2, NO-³, H₂O, PO-₄, SO₄2-, H2 and other essential plant nutrients. Antibiotics, Auxins, hormones, phytohormones.
• Under anaerobic condition (water logged and compacted soil): Methane (CH₄) (swamp gas), organic acids (R-COOH, NH₄ and amine groups (R-NH₂), Toxic gases like H2S, dimethyl sulphide and ethylene (CH₂=CH₂) etc.