Conservative systems are based on less intense soil loosening, carried out by different methods, without turning the furrow and only in the conditions of keeping a certain amount of vegetal residues at the soil surface; for that reasons are therefore considered to be ecological protection strategies. For this study the parcel of 118.78 ha was divided into two plots of 59.39 ha each. On the first plot (P1) the conventional soil works system was used, while on the second plot (P2) was used the system of minimum soil works. The methodology used was to analyze, synthesize and calculation of fuel consumption. Following the application of soil conservation systems, many benefits have been identified: - the time with soil tillage is reduced at 2-4 times;-the fuel consumption per unit area is reduced by 40-50%;- the number of agricultural machinery at the surface unit is reduced;-soil structure is rebuilt and surface and depth compaction is reduced;- the organic matter content from the soil is increased;- soil permeability for water is increased and global soil drainage is improved;
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