Yazar
Peter E Hildebrand
7 cilt bulundu.
Cilt sonuçları
Perspectives on farming systems research and extension
Peter E. Hildebrand · Distributed by Pinter
167 sayfa · 1986
Agricultural systems / Research / Agriculture, research
On-farm agronomic trials in farming systems research and extension
Peter E. Hildebrand · L. Rienner
162 sayfa · 1985
Agricultural extension work / Agricultural innovations / Agricultural systems / Agriculture / Alternative agriculture
Adaptability Analysis
Peter E. Hildebrand · Iowa State University Press
200 sayfa · 1996
Methodology / Research / Agriculture / On-farm / Agriculture, research
Perspectives on farming systems research and extension
Peter E. Hildebrand · L. Rienner
167 sayfa · 1986
Small Farms / Agricultural extension work / Agricultural systems / Agricultural innovations / Family farms
Integrated crop and animal production
R. E. McDowell, Peter E. Hildebrand · Rockefeller Foundation
78 sayfa · 1980
Small Farms / Agricultural systems / Congresses