Akademik Veri Yönetim Sistemi
11th International Scientific Conference on Engineering for Rural Development, Jelgava, Letonya, 24 - 25 Mayıs 2012, ss.52-59
The article presents economic assessment of the working time, fuel consumption, and cost substantiation of conventional, reduced, zero tillage, and crop sowing systems for 2, 10, and 20 ha farms. The economic analysis of the working time, fuel consumption, and costs under Lithuanian conditions was performed for six different tillage and sowing systems. In CT1 system, deep ploughing with a non-reversible plough, disc cultivation, and conventional sowing are performed; in CT2 - deep ploughing with a reversible plough, combined tine cultivation, and conventional sowing; RT1 - deep chiselling, disc cultivation, and mulch sowing; in RT2 - stubble disc cultivation, combined tine cultivation, and mulch sowing; in RT3 - rotary tillage and mulch sowing; NT - zero tillage (direct sowing). On the basis of the analysis of the assessment of different tillage and sowing systems, it was established that the biggest consumption of working time is in the case of application of conventional tillage and sowing systems (CT1 and CT2). In the case of application of reduced tillage systems (RTI, RT2, and RT3), 0.4 to 1.3 h.ha(-1) of the working time compared to conventional systems can be saved, and application of zero tillage systems allows saving 1.5 to 1.9 h.ha(-1) of the working time compared to conventional systems. In conventional tillage and sowing systems, the fuel consumption is more than 5 times higher compared to zero tillage systems, and in reduced tillage and sowing systems, the fuel consumption exceeds that in zero tillage systems by 2.5 to 4.8 times. If the farm size is increased to 20 ha, the costs in different tillage and sowing systems decrease by 12 to 27 % per hectare.