Energy balance of the cultivation of tomato (solanum lycopersicum, lin) (Original)
Keywords:
energy; efficiency; yield; tomatoAbstract
The work was developed in the Basic Unit of Cooperative Production (UBPC) “Antonio Maceo” belonging to the Agricultural Company “Paquito Rosales Benítez” of Veguita, municipality Yara, county Granma. The objective of the work has been to evaluate the energy balance for the cultivation of the tomato (Solanum Lycopersicum, Lin) in a Fluvisol with texture loamy franc under production conditions during the campaigns 2012 and 2013. The energy of direct use associated to the cultivation in the campaigns 2012 and 2013 was of 7,0 and 3,76 GJ ha-1, that of indirect use was of 17,82 and 14,99 GJ ha-1. The total energy consumed by the cultivation associated to the agricultural yield Input was of 24,51 and 18,52 GJ ha-1 and the energy associated to the cultivation taken place by surface unit Output 28,33 and 10,08 GJ ha-1 respectively. The energy yield (Ratio) of the cultivation it was of 1,16 and 0,54 and the energy efficiency (NER) of 0,16 and -0,45 respectively.
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