CONSERVATIVE SOIL TILLAGE TECHNOLOGIES.

The most important component of conservation technological systems, as in the case of conventional ones, is soil tillage--loosening and processing--and the introduction of seed into the soil. Conservative systems are based on the less intense loosening of soil, made by different methods, without furrow return and only while maintaining a given amount of crop residues on soil surface, is being considered for this reason as environmental protection strategies. In this paper are presented conservative tillage technologies use in our country and in the world. [ABSTRACT FROM AUTHOR]