participates_in participates in has role harvest process plant harvest implement sickle Agricultural tool that is hand-held and composed of a curved blade with a sharp inside and a handle. It is used for harvesting, or reaping, grain crops or cutting succulent forage chiefly for feeding livestock, either freshly cut or dried as hay. bagging hook brishing hook grasshook https://orcid.org/0000-0001-6284-4821 reaping hook rip-hook slash-hook swap hook forage harvester reapper digger human power role weeding implement weeding process Homo sapiens