engleski

Energy and Labour Requirement of Different Soil Tillage Methods in Soybean Production

Five different soil tillage methods were tested in soybean production on silty loam in Croatian region western Slavonia. Tillage methods were: 1. conventional (plough, discharrow, combined implement), 2. reduced (plough, combined implement), 3. reduced (chisel plough, powered harrow), 4. reduced (chisel plough, multitiller), 5. direct drilling (rotary cultivator with integrated drill). The aim of testing was to compare energy and labour requirement of each tillage method and its influence on yield. Results indicate that conventional tillage method was the greatest energy and labour consumer. Comparing to conventional tillage, method with plough and combined implement required 16.1% less, chisel plough and power harrow 26.9% less, chisel plough and multitiller 40.8% less, while direct drilling required even 71.9% less energy per hectare. Except energy saving, reduced tillage methods can also assure significant labour saving, so, plough with combined implement and chisel plough with power harrow required 22.8% less and 30.9% less labour than conventional method respectively, while tillage method of chisel plough with multitiller required 47.5% less labour per hectare than conventional method. The best result achieved direct drilling which assured 64.2% of labour requirement saving. The greatest yield of 3.46 t/ha achieved tillage method with plough and combined implement. Next to it was chisel plough and multitiller with 3.40 t/ha. Direct drilling achieved 3.26 t/ha, while conventional method achieved yield of 3.09 t/ha. The lowest yield of 2.96 t/ha achieved chisel plough and power harrow.

Soil tillage; Energy and labour requirement; soybean production

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