Energy and carbon dioxide balance by different cultivation technologies of winter wheat | Bilancia energie a oxidu uhličitého pri rôznych technológiách pestovania pšenice ozimnej
2011
Pospíšil, R., Slovak University of Agriculture in Nitra (Slovak Republic), Faculty of Agrobiology and Food Resources, Department of crop production | Ržonca, J.
The aim of this work was to evaluate of energy balance and carbon dioxide emission by different cultivating technologies of the winter wheat (Triticum aestivum L). The field trials were carried out on the experimental base of the Slovak Agricultural University in Dolná Malanta in years 2000-2007. The experiments were performed in natural field conditions using three ways of the soil tillage: conventional, reduced and minimal tillage. We have applied the following ways of the fertilization: without fertilization, balanced fertilization and balanced fertilization + ploughed remains after harvest. Winter wheat in conditions of haplic luvisol has a strongly positive energy balance. Balance of carbon dioxide was negative. The energy inputs were the lowest at the minimum tillage (mean 10.77 GJ per ha), higher at the reduced tillage (mean 11.42 GJ per ha) and the highest at the conventional tillage (mean 11.56 GJ per ha). We have obtained the most favorable indicators of the energetic evaluation and carbon dioxide balance at the minimum soil tillage and balanced fertilization with incorporation of remains after harvest.
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