Kerala Agricultural University Central Library Search for 'au:"Dr. M.R. GOPALAKRISHNAN NAIR "'

DISSIPATION OF PHORATE RESIDUES IN SOIL AND COWPEA PLANT IN RELATION TO PEA APHID CONTROL AND SOIL MICROBE POPULATION

By VISALAKSHI.A. COLLEGE OF AGRICULTURE VELLAYANI DEPARTMENT OF AGRICULTURAL ENTOMOLOGY 1977

By THOMAS.M.J. COLLEGE OF AGRICULTURE VELLAYANI DEPARTMENT OF AGRICULTURAL ENTOMOLOGY 1977

By SASIDHARAN PILLAI.K. COLLEGE OF AGRICULTURE VELLAYANI DIVISION OF AGRICULTURAL ENTOMOLOGY 1981