Publications by authors named "Jo U Smith"
Aim: This study aimed to simulate deactivation of Escherichia coli in soils amended with cattle manure after burning, anaerobic digestion, composting, or without treatment.
Method And Results: The Weibull survival function was used to describe deactivation of E. coli.
Article Synopsis
- The study examined how different organic waste treatment methods affect the spread of harmful bacteria, specifically E. coli, to food crops in a developing country.
- Fresh cattle manure was treated using anaerobic digestion, burning, and composting, revealing that all methods reduced bacteria levels, but anaerobic digestion proved most effective in lowering contamination in soil and crops.
- The findings highlight that treating manure before use as fertilizer can significantly lessen the risk of bacterial contamination in food crops, emphasizing the importance of using anaerobic digestion for safer organic fertilization.
Our understanding of the relationship between the decomposition of soil organic matter (SOM) and soil temperature affects our predictions of the impact of climate change on soil-stored carbon. One current opinion is that the decomposition of soil labile carbon is sensitive to temperature variation whereas resistant components are insensitive. The resistant carbon or organic matter in mineral soil is then assumed to be unresponsive to global warming.
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