Weeds of corn, soybean, and winter wheat fields under conventional, conservation, and no-till management systems in Southwestern Ontario 1988 and 1989

The primary goal of the weed survey project, which is reported in this publication, is the identification of weed species likely to be the greatest problems under various tillage systems in southwestern Ontario. Information on the response of the weed community to changes in tillage practices is vital for a sensible farm management program. As well as the field survey for weeds, data on farm management practices were gathered through a questionnaire. This report is a summary of the results from 1988 and 1989. Agriculture Canada