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Evaluation of Soil Health Under Different Grazing Management Systems in Manitoba

2:50 pm Thursday, January 18

MNP Theatre

Photo of Dr Terence McGonigle

Speaker

Soil health is normally evaluated in terms of productivity based outcomes, such as forage biomass or cattle gains. However, use of an indicator measurement on soil itself would allow prediction of outcomes, as well as provide an opportunity for management intervention to maximize profitability and preserve the integrity of the land. Soil organic carbon is one of several indicators that have been considered. We note that an important part of field productivity relies on microbe activity for mineralization and uptake to plants. Thus, the approach taken here was to test the use of microbial biomass carbon (MBC) as an indicator of soil health.