Sickle has use harvest
A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting, or reaping, grain crops or cutting succulent forage chiefly for feeding livestock, either freshly cut or dried as hay. Falx was a synonym but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge such as a scythe.
Since the beginning of the Iron Age hundreds of region-specific variants of the sickle have evolved, initially of iron and later steel.  This great diversity of sickle types across many cultures can be divided into smooth or serrated blades, both of which can be used for cutting either green grass or mature cereals using slightly different techniques.  The serrated blade that originated in prehistoric sickles still dominates in the reaping of grain and is even found in modern grain-harvesting machines and in some kitchen knives.Americas
Indigenous sickles have been discovered in southwest North America with unique design. There is evidence that Kodiak islanders had for cutting grass "sickles made of a sharpened animal shoulder blade". The artifacts found in present-day Arizona and New Mexico resemble curved tools that were made from the horns of mountain sheep. A similar site discovered sickles made from other material such as the Caddo Sickle, which was made from a deer mandible. Scripture from early natives document the use of these sickles in the cutting of grass. The instruments ranged from 13 to 16 inches tip to haft. Several other digs in eastern Arizona uncovered wooden sickles that were shaped in a similar fashion. The handles of the tools help describe how the tool was held in such a way so that the inner portion that contained the cutting surface could also serve as a gathering surface for the grain. Sickles were sharpened by scraping a shape beveled edge with a coarse tool. This action has left marks on artifacts that have been found. The sharpening process was necessary to keep the cutting edge from being dulled after extended use. The edge is seen to be quite highly polished, which in part proves that the instrument was used to cut grass. After collection, the grass was used as material to create matting and bedding. The sickle in general provided the convenience of cutting the grass as well as gathering in one step. In South America, the sickle is used as a tool to harvest rice. Rice clusters are harvested using the instrument and left to dry in the sun.