ENERGY ACCOUNTING OF TOMATO PRODUCTION IN LAPAZ, ZAMBOANGA, PHILIPPINES

ABSTRACT: The study was laid out in La Paz, Zamboanga City, Philippines, to determine the energy hotspotand evaluate the energy use efficiency in the entire tomato production system. The activities that have nothing todo with farm operations, such as doing household chores, food, clothing, and personal work, were excludedfrom the research. The study found that the DEI, IEI, and EEI values for the entire activity in tomato productionranged from 39.63% to 46.08%, 42.93% to 99.70%, and 0.29 percent to 10.99%, respectively. According to thefindings, indirect energy inputs accounted for 42.93% to 99.70% of the total energy inputs. It explains that IEIwas a hotspot, particularly in crop care and management activity. However, the EP and NE have calculated todetermine the efficiency in energy input, giving the results of 1.00 Mcal ha-1and 29.22 Mcal ha-1, respectively.From there, it is observed in the existing production system the energy efficient since it obtains low TEI withhigh economic output, and the energy inputs did not exceed on energy output. Furthermore, this system can bemore efficient if crop care and management activity properly managed include agrochemicals, particularlyfertilizer.

KEYWORDS: Energy Inputs, Total Energy Inputs, Energy Hotspot, Energy Productivity, Net Energy