Сельскохозяйственные машины и технологии (Apr 2015)
PHYSICAL AND TECHNOLOGICAL PROPERTIES OF THE MEADOWS AND PASTURES TUSSOCKS
Abstract
Scientific researches of tussocks physical and technological properties are necessary for working out of technological means for improvement of the tussock meadows and pastures. The author has defined a type of tussocks, geometrical indicators, a form and density of their location. Investigation of a flood meadow, which was near the river Orsha in Kalinin district of the Tver region was conducted. It was showed that the average nominal diameter of the tussock bottom was equal 410 mm, height - 470 mm. Averaged density of a tussocks location made 1.7 pieces per sq. m. The main indicators of physical and technological properties of tussocks for use of machines for cultivating of the tussock forage lands were conducted. It was given that density of tussocks was equal 1.23-1.49 g per cc, absolute moisture of a tussock was 25.3 percent, earthy hillock - 19.3 percent, hardness - 116, and 5.5 kPa respectively. Installation for determination of shear strength of a hillock is worked out. It was revealed that the greatest energy expenses accrue to the lower layers of tussoks.
