Effect of different doses and combinations of NPK fertilizers and manure on the quality of proteolytic microorganisms in chernozem soil under wheat crop
1984
Djukic, D. (Agronomski fakultet, Cacak (Yugoslavia))
Among the fertilizers tested, the greatest influence upon the quantitative presence of examined proteolytic microorganism groups was found with the nitrogen dose N2, whereas the smallest one was obtained with the potassium dose K2. Among the two-component fertilizers, the greatest influence upon the quantitative presence of proteolytic microorganisms was established with the combination N2P2, whereas the smallest one was obtained with the combination P2K2. The highest dose NPK (N3P3K3) yielded the greatest growth of proteolytic microorganisms on gelatin or egg bases. The control culture (with no fertilizers applied) showed the lowest number of examined proteolytic microorganisms.
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