Hector Kobbekaduwa Agrarian Research and Training Institute Munaweera, T.P. Samarasinha, G.G.de.L.W.
Potentials and constraints of biopesticide and biofertilizer usage and production in Sri Lankan agriculture
- Colombo Hector Kobbekaduwa Agrarian Research and Training Institute 2019
- viii, 48 pages
- Working paper no:12 .