The S . F . I . scarifier, after strengthening, had been " quite successful " for 2 years, promising trials were under way with the cone scarifier and barrel ring scarifier, and development had begun on a new flail scarifier for use on sites with shallow, rocky soils.
12.
According to J . Hall ( 1970 ), in Ontario at least, the most widely used site preparation technique was post-harvest mechanical scarification by equipment front-mounted on a bulldozer ( blade, rake, V-plow, or teeth ), or dragged behind a tractor ( Imsett or S . F . I . scarifier, or rolling chopper ).
