Evaluation of the groups of machines used in four technologies for the tillage of the cassava cultivation (Manihot esculenta, Crantz.) (Original)

Abstract

The work was developed in three stages of research, conducted in the Basic Unit of Cooperative Production "El Palmar" belonging to the agricultural farm "Paquito Rosales Benitez" in the municipality of Yara, Granma Province, Cuba, were evaluated tractor-implement sets involved in the completion of four tillage systems for cassava, Pink Dwarf variety. Tillage systems were: T1(traditional), 5 labours; T2 (minimum tillage), two labours; T3 (minimum tillage), three labours and; T4, 5 labours. Five observations of the working day for each tractor-implement sets of each tillage system in three seasons were performed, evaluating fuel consumption, different productivities, indexes and technological and operational factors. The crop yield. The best results related to evaluated machinery indicators corresponded to T2 minimum tillage system, which presents the best productivity per hour clean time (1.34 ha h-1) and operating time (1.27 ha h-1), with significant differences compared to other tillage systems evaluated.