Fertility Studies on Soil Types: II. The Physical and Chemical Composition of Soils from Carleton and Grenville Counties in Ontario1

The results of analysis of 90 surface soil samples from ten major soil types of Carleton and Grenville counties in Ontario are presented. These results should apply in general to the soils of most of Eastern Ontario The samples varied in texture from sands to clays and in reaction from moderately acid to moderate alkaline. Except for the soils of light texture, most of the samples were quite well supplied with organic matter and nitrogen Values for exchangeable calcium, magnesium and potassium are given. Results for the trace elements boron, manganese, cobalt and copper showed the variation to be found between and within soil types. This is the first time such information has been available for any area in Canada. A high positive correlation was found between clay and cobalt content and between clay and copper content.