The purpose of this work is the detailed technical and economic analysis of the sowing operation using the aggregate formed by the John Deere 6190R tractor and the Gaspardo MT 12 seed drill, on an area of 100 ha. The conventional system is characterized by annual energetic loosening of the soil carried out by ploughing with furrow turning, which is then followed by other secondary works. In relation to the intensity and frequency of soil work, three major categories of methods are distinguished within this system, namely: loosening by ploughing with furrow turning, loosening by discing and reduced loosening. This soil loosening system is the one that also defines the type of conventional agriculture. The primary soil loosening work aims mainly to combat weeds by deeply incorporating seeds and roots, as well as to create a soil surface free of plant debris to facilitate the preparation of the seedbed for sowing. The absence of plant debris on the surface leaves the soil completely uncovered for a long period of time, thus being exposed to the aggressive action of degradation factors, becoming susceptible to destructuring, crusting, erosion, etc., as well as to water loss through direct evaporation from the soil. Technological tillage systems have evolved a lot, both in Romania and worldwide, an evolution both conceptually and in terms of the practical extension of conservative tillage methods. The practical extension of unconventional tillage methods differs from one country to another depending on the possibilities of mechanization and increases with the increase in the capacity of tractors and agricultural machinery and the diversification of loosening, soil processing and sowing equipment.

minimal work, technological systems, corn cultivation

mechanical engineering

Presentation: poster