Optimum drop size and volume of spray solution for the application of foliar sprays against coffee leaf rust by hand lance and hydraulic nozzle /
J. H. Whan ... [et al.]
- Kainantu, E.H.P., Papua New Guinea : Coffee Industry Corporation, 1992.
- 24 p.
- Coffee research report ; no. 19. .
Technical report of research from an Australian Development Assistance Project, commissioned by the Governments of Australia and Papua New Guinea.