Resumo

GARCIA DE LA FIGAL COSTALES, Armando E; VALDES LIMA, Yusney  e  VARGAS HIDALGO, Jiorqui. Evaluation the expenses of economic, operation and energy in the work of cultivation of the bean, tomato and potato comparing the tractor YUMZ-6M with yoke of oxen . Rev Cie Téc Agr [online]. 2012, vol.21, n.3, pp.62-68. ISSN 2071-0054.

With the objective of evaluating the exploitation, economic and energy expenses of two groups: tractor-cultivator and yoke of oxen-cultivator with three and one work organs, respectively, in the work of cultivation of the bean, tomato and potato in a floor red Ferralitic, the times of each work, depth, wide, work speed and expense of fuel were measured. By means of the existent methodologies, these expenses were calculated, being necessary the energy expenses of the yoke of oxen. Comparing the first group with the second, it was obtained that the yoke of oxen is more efficient economic and energetically that the first one. To cultivate 5,594; 6,007 and 14,90 ha for the tractor- cultivator in labour day of 8 h, for this cultivations, respectively, five, seven and nine yoke of oxen- cultivator working 6 h are required, and with double the width of work of the first group for its best conformation, is obtained that the tractor-cultivator is more efficient productive, economic and energetically that the yoke of oxen.

Palavras-chave : energy; economy; exploitation; tractor; yoke of oxen; cultivation.

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