Now showing items 1-2 of 2
New Zealand farmer and grower attitude and opinion survey : analysis by sector and management system
(Agriculture Research Group on Sustainability, 2007-10)
The core of the ARGOS research design is a longitudinal panel study. Panels of 12 farms were selected to represent conventional, integrated and organic management for the sheep/beef sector, Kiwigreen, gold and organic ...
Tractor replacement policies and cost minimisation
(Lincoln College. Agricultural and Economics Research Unit, 1983-11)
Calculating the most appropriate replacement policy for farm tractors is a complex exercise made even more difficult because of inadequate data on how resale values and repair costs vary with tractor age and hours of ...