The performance of carried instruments in the work for the management and improvement of rangelands and meadows

The use of accessory machines in rangeland management and improvement is considered to be vital in the recent years. Works such as control of undesirable plants, seeding with forage species, fertilization of natural rangelands and meadows and soil treatment are done with the use of tractors and their added accessories. The latter might be drawn, semi-carried or carried, which are adjusted on the tractor in one, two or three points respectively. The rapid development of modern machinery, give us the opportunity to choose the proper equipment according to the nature of the work. The aim of this paper was to evaluate the performance of the rotary tiller with blades of type L. To achieve this, two different experimental sites, A and B within in an area of 10.000 m2 and 15000 m2 respectively, were set up, where the above machinery has worked. The performance Q was assessed for both sites after taking into account the step of cutting L in relation with the velocity of movement (u), the number of revolutions of the impeller (n) and the number of pairs of blades for each disk (z). The results showed that the performance of the equipment was affected by the dimensions and the type of rotary tiller, the velocity of tractor as well as from the slope, soil type and the way of the procedure which followed.