Abstract
Problem solving activities in the technology of nurturing living things should be based on a discipline-based epistemological approach. If the harvest result of the crop could be quantified not only in terms of the yield but also the revenue and environmental load, quantitatively grasping trade-offs among them will be helpful. For environmental load, greenhouse gas (GHG) emissions were calculated using a life cycle assessment. To obtain various results on yield, revenue, and environmental load, potato plants were grown using eight different cultivation methods. A multifaceted analysis of the harvest results revealed that in the unfertilized plot, although small improvements were observed in the expenditure and GHG emissions, the negative effect of the yield decrease was even greater. In addition, from the viewpoint of economy and environmental load, a clear trade-off was observed between poly mulch and biodegradable mulch. These results suggest the importance of analysis of the harvest results from multiple perspectives.
