Articles in Press
Volume 4 Issue 1
Urease, Invertase, and Phosphatase as Indicators of Soil Microbial Activity at three
Locations in Kentucky
George F. Antonious1*
With increasing cost and shortage of inorganic nitrogen fertilizers, there is increased emphasis on use of municipal sewage sludge (SS) for land farming. SS is inexpensive, locally available in large amounts, sources of organic matter, and its use in growing horticultural crops will provide a partial solution to its disposal problem. SS, a by-product of sewage treatment plants, is currently applied to some agricultural soils as an alternative to conventional inorganic fertilizers. Microorganisms in soil, play a significant role in keeping three main nutrients (C, N, and P) through recycling from organic matter.