Resultados de búsqueda - "Agricultural extension work."

Innovation in Papua New Guinea agriculture / por Jarrett, Frank G.

Materias:

Pyrethrum and the Highlander por Scoullar, Brian

Materias: “…Agricultural extension work Papua New Guinea Highlands Region.…”

On-farm agronomic trials in farming systems research and extension por Hildebrand, Peter E.

Materias:

Report on the draft for a revised extension manual for the Department of Agriculture, Stock and Fisheries / por Johnson, R. K. (Robert Keith)

Materias:

Papers on institutions in agriculture / por Dick, Gordon

Materias:

The international agricultural research centers : their impact on spending for national agricultural research and extension / por Evenson, Robert E. (Robert Eugene), 1934-

Materias:

Agricultural research and extension in the Southern Highlands Province : the development of agricultural extension centres with special reference to Kuma in the Upper Mendi / por Crittenden, Robert

Materias:

Teachers as didimen : is it possible? Can staff trained to teach youth in vocational centres become village extension officers? / por Weeks, Sheldon G.

Materias:

A manual for preparing indigenous teaching materials for field workers /

Materias:

Working with people : a guide for field workers in Papua New Guinea.

Materias: “…Agricultural extension work Papua New Guinea Handbooks, manuals, etc.…”

Technology for small-scale farmers in sub-Saharan Africa : experience with food crop production in five major ecological zones /

Materias: