SUNDARESAN NAIR.C 1989
NUTRIENT DAYNAMICS IN THE RICE BASED CROPPING SYSTEMS - COLLEGE OF AGRICULTURE VELLAYANI DIVISION OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY 1989
E N89 / SU 63
NUTRIENT DAYNAMICS IN THE RICE BASED CROPPING SYSTEMS - COLLEGE OF AGRICULTURE VELLAYANI DIVISION OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY 1989
E N89 / SU 63