During the period from sowing up till the end of intensive leaf growth (81–90 days
after sowing) plant photosynthesis productivity on the average was 0.55 mg cm2
in
24 h and the biggest one – applying fertilizer with nitrification inhibitor, but essential
differences among plants fertilized with different fertilizers weren’t found. The net
photosynthesis productivity increase, in comparison with I measurement, increased
0.09–0.25 mg cm-2 in 24 h and it was the biggest one applying fertilizer with nitrification
inhibitor. Net photosynthesis productivity during the mentioned period on the average
was 60.5 mg m-2 in 24 h and it was the biggest fertilizing with monomial fertilizers