The soybean as a source for high quality protein and fat contributes essential to the growing need of protein for a rising world population. The combination with application of biochar was barely explored until now. In 2012, a planting experiment was carried out in the semi-arid area of eastern Austria to see which influence biochar can have on growth, yield and selected ingredients of soybeans. The immediate effect from an amout of zero to 20 t/ha biochar was compared. During the growth period of the soybeans until the beginning of blooming, differences between the variants could be found. At the beginning of July, differences in the length of plants and grown biomass were measured. The plants from the plots prepared with HTC biochar have shown significantly longer stems than the others. These differences diminished until the harvest. Due to warmer temperatures and lower precipitation values in 2012 compared with statistical average of 30 years, no rhizobia could be developed and nitrogen fixation for soybean plants was not possible. The plants could only use nitrogen from the soil for growth. As a result, the plots prepared with mineral fertilizer have shown the significantly longest plants, the highest mass of dry matter and the highest yields. Concerning the ingredients, only in the oil content significant differences could be found. The HTC variants had the lowest values as well in oil- as in sugar contents. Only the plots where HTC was mixed with compost had shown values above the average. All other values were lower than the middle. From this results it can be seen, that due to the lower amount of available nitrogen in the year of application there can be a negative influence of biochar on the yield. To evaluate effects in crop rotations, long term field experiments have to be made, because only thus, medium- and longterm effects of biochar on growth of plants, behave on yield and quality of harvested crops and impact on soil can be evaluated objectively.