Machinery & Energetics

One of the problems in the cultivation of fallow in the arid conditions of southern Ukraine is the lack of technical means to ensure the presence of moisture in the soil at the time of sowing winter crops. The article presents the operational and technological assessment results of the machine-tractor unit operation as part of a universal row-crop tractor of traction class 1.4 and a new harrow tool. Its feature is the use of flat-cutting working devices that loosen the upper (5...6 cm) soil layer without significant removal of its wet part to the day surface. This unit was compared with the base one for similar purposes. It included a general-purpose tractor of traction class 3 and a cultivator of the KPS-8 type. Experimental studies have established that using a new machine-tractor unit for cultivation fallow in conditions of soil moisture lack allows increasing work performance by at least 8% and almost halving the specific fuel consumption. The probability of maintaining the tolerance of fluctuations in the depth of processing of the fallow field at the level of ± 1 cm by the new harrow unit is 78%.

tractor, harrow link, share, performance, turn, fuel consumption