Evaluation methods of agricultural production systems

Abstract

There are many methodologies to analyze or evaluate agricultural production systems. The methods or tools to select are naturally different according to aim of evaluation and to characteristic of objective systems. Some introduced researches in this report were a method with entropy and a multiple evaluation with five indexes. The farmer in which the concept of resource physics was applied focused on the waste side of the agricultural production systems. Layer production was selected as an objective system and simulation of economics, energy and entropy was performed for different regions and housing types to demonstrate. To the same objective systems, it was tried to express sustainability of system by using entropy production for linear system. The latter with 5 indexes which were economic balance, fossil energy input, nitrogen load, animal welfare and satisfaction rating of farmer, was applied to dairy production systems. Statues of H-district and S-district were indicated by plotting values of five indexes on a radar chart.