Effects of environmental factors and Mn, Zn, Cu trace elements on the soil phosphomonoesterase and amidase activity. Application of DISITOBI model.
A soil incubation experiment was carried out in a complex experimental system to simulate the effect of environmental factors and 3 trace elements on the phosphomonoesterase and amidase activity of 2 soils. DISITOBI model assures information about experimental object characterized by multidimensional response-function. Plant residue+mineral nitrogen addition increased phosphomonoesterase activity of investigated soils through its effect on enzyme synthesis. A significant part of the increase in phosphomonoesterase activity is the result of the exogenous enzyme input of plant residues. Mineral phosphorus addition reduced the activity after 16 days incubation under our experimental conditions. Plant residue+mineral nitrogen addition reduced amidase activity of chernozem soil presumably due to ammonium and nitrate inhibiting soil amidases.
Anton
A
A
Department of Soil Biology, Hungarian Academy of Sciences, Budapest.
Máthé
P
P
Radimszky
L
L
Füleky
G
G
Biczók
G
G
D000581:Amidohydrolases / Q000037:antagonists & inhibitors*; D004777:Environment; D008954:Models, Biological; D010744:Phosphoric Monoester Hydrolases / Q000378:metabolism*; D010944:Plants / Q000187:drug effects / Q000201:enzymology; D012987:Soil / Q000032:analysis*; D014131:Trace Elements / Q000494:pharmacology*
D012987:Soil; D014131:Trace Elements; D010744:Phosphoric Monoester Hydrolases; D000581:Amidohydrolases