| Abstrakt: |
In the Republic of Bulgaria, water erosion of the soil and the related degradation processes of compaction and reduction of soil organic matter represent a problem of national importance, since the losses they cause to the national agricultural industry, and the sloping agricultural lands, in particular, are significant. For this reason, four soil protection technologies (advanced soil protection technologies for minimal and non-traditional tillage, i.e. vertical mulching, and advanced anti-erosion technologies for contour mulching tillage, i.e. surface mulching, were developed and researched. These technologies limit the degradation processes during the production of the most common cereal crops in our country, i.e. wheat and corn for grain, on sloping terrain. The present article studies the nature and specific features of these new soil protection technologies. It provides an outline of the technological processes and operations involved, as well as a description of the used agricultural machine aggregates. The paper also discusses the results obtained from the agro-technical and erosion research done with various mulching materials, i.e. wheat straw, ready compost and manure, under conditions of carbonate chernozem soil and demonstrates their effectiveness with reference to soil conservation and agricultural technology. [ABSTRACT FROM AUTHOR] |
