Net Energy Use and Carbon Emission Equivalent of Tomato and Eggplant Production in Zamboanga City, Philippines
Journal: International Journal of Multidisciplinary Research and Publications (Vol.4, No. 4)Publication Date: 2021-10-15
Authors : Algaib P. Taib; Jul A. Alamhali; Elderico E. Taba;
Page : 73-78
Keywords : ;
Abstract
A study was conducted to calculate the energy inputs to produce eggplant and tomato and its carbon emission equivalent in Zamboanga City, Philippines. Energy accounting procedures and coefficients used were adopted from various literatures. All Mcal units derived in direct energy input (DEI), indirect energy input (IEI), and embedded energy input (EEI) were converted to liter diesel oil equivalent (LDOE) to account for the net carbon emission, where 11.414 Mcal = 1 LDOE = 3.96 kg CO2 emission equivalent. The acreage of DEI, IEI, and EEI is called the total energy input (TEI). The net C emission equivalent is expressed in tCO2e ha-1. The TEI applied to eggplant production amounted to 10,661.44 Mcal ha-1 (934.07 LDOE ha-1), while for tomato production amounted to 7,045.89 Mcal ha-1 (617.30 LDOE ha-1), respectively or this is equal to 3.7 tCO2e ha-1 emission (eggplant) and 2.44 tCO2e ha-1 (tomato). Across the two (2) commodities, the IEI contributed 63.7- 90.35 percent of the total TEI attributed largely to chemical fertilizers, agrochemicals, and labor, or these are called the ‘energy hotspots', implicating the entire production systems a highly energyintensive. Proper management, correct timing and amount of fertilizer application, proper application of pesticides, proper tillage, use of mulch, proper irrigation, proper allocation of manpower unit1 area, and proper allocation of activity working-1 hour will lead to efficient usage of energy and adopting organic agriculture will lead to an eco-farming system with reduced energy usage and carbon emission production systems for Zamboanga City, Philippines.
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Last modified: 2021-11-05 20:34:34