SodininkyStĖ ir darŽininkyStĖ 28(2)

The increase of crop density (r = 0.64; 23 %), precipitation amount during vegetation in theinvestigation period (r = 0.48; 18 %), turnip weight (r = 0.34; 12 %) and the amount of humicacids in the soil (r = 0.30; 11 %) increased onion standard yield. The influence of the increaseof fulvic acids (r = - 0.34; 12 %) and temperature (r = - 0.48; 18 %) was weak, but negative.Key words: fulvic and humic acids, humistar, rates, productivity, onion.93