Analysis of the efficiency of la st generation agricultural aggregates. (Original)

Abstract

The present work was developed with the objective of analyzing by means of the calculation some indicators of work efficiency of the latest technology agricultural aggregates, partially establishing some of these for the future planning of agricultural work in the Fernando Echenique Agroindustrial Grain Company of the Granma province. To carry out the research, the standards NC 34-37: (2003), NRAG XXI: (2005) were used. The instructions and methodologies presented by Jróbostov (1977), Garrido (1989) and González (1993) were also taken into account. The design used was completely randomized. The results showed that most of the values of the efficiency indicators of these agricultural groups are below the technical possibilities. However, the working width utilization coefficient  for the floor leveler, the working speed utilization coefficient ) of the 52 disc heavy harrow and the shift time utilization coefficient ) of the median tier of 40 discs are classified as acceptable with magnitudes of 0,96; 0,82 and 0,77 respectively. It is concluded that the magnitudes of real productivity  obtained behaved below the real possibilities of the set with magnitudes 14, 65; 17, 71 and 29,1 ha turno^-1 respectively. Which is due to violations of kinematic parameters during work?