The investigation of the effect of vibration of working bod- ies of subsoiler on the structure of root layer of the soil per- formed in Novosibirsk district of Novosibirsk Region on leached chernozyom. Field experiments were performed us-ing an experimental sample of vibrating subsoiler GV-1.8, equipped with inertial exciter of a planetary type. Evaluation of agrotechnical performance of vibrating subsoiler was carried out according to the methods approved by the current state standards. It is established that using of vibration of working bodies allows improving significantly the quality of the perfor- mance of deep soil loosening according to several parame- ters. Oscillatory movements of working bodies of the subsoiler contribute to more efficient cutting of the stubble and de- crease in opening angle of the furrow and the amount of soil clods brought to the surface of soil. Analysis of soil samples showed that vibration effect allowed reducing the density of treated soil by 0.12 g/cm3 due to the intensification of the crumbling of the soil layer, which is manifested in the increase in the number and range of propagation of cracks in soil mas- sif. An analysis of energy performance of vibrating subsoiler in various modes of work showed that using of vibration of working bodies reduced traction resistance by 14.4 %.
vibrating subsoiler, vibro-exciter, soil struc- ture, deep loosening
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