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Table 3.

Count of functional groups of microorganisms depending on the use of zeolite in corn cultivation

Option Colony-forming units/1 g of absolutely dry soil*
MPA,** x107 Hutchinson-Clayton agar,**x 104 Ashby agar,** x 104 Menkina agar, x106 Muromtsev agar, x106 Nitrate agar x106
Control 29.46 7.13 1.48 12.74 89.18 34.15
Zeolite 500 kg/ha 3.92 7.17 1.58 12.89 99.30 30.51
Zeolite 500 kg/ha + N60 (urea) 33.68 7.38 1.52 13.11 98.45 35.01
*

Colony-forming units;

**

culture medium for counting:

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