Omówiono wyniki wieloletnich badań polowych głębosza na zboczu lessowym. Przedstawiono wpływ pracy głębosza na fizyczne właściwości gleby oraz plony roślin.
Article presents new constructions of the ploughs and their modernisations aiming at increasing the effectiveness of these implements. The discussion also embraces machines for simplified soil cultivation, which involves the simultaneous joint performing of few treatments. Moreover, the essence and advantages of "zero" cultivation method widely used in the USA, Canada and Germany are discussed.
Omówiono budowę „kombajnów górskich" oraz systemy poziomowania poszczególnych zespołów roboczych tych maszyn. Ponadto przedstawiono wyniki badań kombajnów oraz próbę oceny celowości produkcji tego typu maszyn dla polskiego rolnictwa.
Agrotechnical results of using subsoiler of suthors’ own design were examined on loess slope at 13-16% inclination. The highest degree of soil loosening was obtained at working speed about 2,0 m/s and working element spacing longitudinal 0,3 m and transverse 0,4 m. Subssoiling reduced the soil compactness fivefold compared to its condition before cultivation. Field experiment showed that the autumn subsoiling - in comparison with traditional ploughing - significantly decreased soil compactness and positively affected its water permeability, particularly within the layer 20-40 cm deep.