engleski

Comparison of Energy Consumption and Machinery Work with Various Soil Tillage Practices at Soybean Production

An annual investigation of energy consumption and machinery work with three various soil tillage practices at soybean production, variety Tisa (1st group) was conducted in east Croatia area (45 30 N, 18 07 E). Conventiona, conservation and no till were tillage practices applied. Energy comparison indicates a markedly energy consumption at the conventional soil tillage (ploughing, disking and seeding) with 56, 86 kg/ha and 18, 85 kg/t of the diesel fuel. More convenient variant is conservation soil tillage (shovel loosening, disking, seeding) demanding 45, 51 kg/ha and 16, 88 kg/t, being 10, 5% less compared to the conventional practice. The most favourable variant, in terms of energy, is no till with only 5, 71 kg/ha and 1, 86 kg/t of diesel fuel, being 90% less compared to the conventional practice. Comparison of the investigated variants productivity indicates that conventional practice requires 1, 97 h/ ha and 0, 65 h/t, conservation 1, 40 h/ha and 0, 52 h/t being 29% i.e. 20% whereas no till demands only 0, 29 h/ha and 0, 09 h/t being 85, 3% i.e. 86, 2% less compared to the conventional one. Direct soybean seeding resulted in reducing production costs of (130, 74?/ha), primarly due to soil tillage and chemical protection mission. The lowest yield of 2, 70 t/ha was accomplished with conservation tillage and the highest one of 3, 07 t/ha by no till application.

Soil tillage; energy consumption; productivity; soybean

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