TY - BOOK AU - AKHILA ASHOKAN AU - Dr. MINI V TI - HUMIC ACID AS A BIOSTIMULANT AND CHELATING AGENT FOR IMPROVING RICE PRODUCTIVITY IN THE ONATTUKARA SANDY SOILS U1 - E P25 AK 463 PY - 2025/// CY - College of Agriculture, Vellayani PB - Department of Soil Science and Agricultural Chemistry, ER -