Assertion: bracken | /r/HasProperty | sprayed with herbicide
Facets:
Source sentences:
text: After 12 years, biomass of bracken was 76–85% lower in areas where bracken had been sprayed with herbicide, than in unsprayed areas.
text: After 10 years and in two of four cases, heather cover was higher in areas where bracken was sprayed with herbicide (22–28%) than in unsprayed areas (0%), but after 18 years the cover of heather in all plots declined to 0%.