Period
What two hand tools are commonly used in developing countries for harvesting cereal crops.
Cereal
Cereal Stover Fossil Exhibition (Nostimo) Harvest Moon 2 GBC Sidibela
Cereal-Period Stover-Abstract Fossil_Exhibition_(Nostimo)-The_artifacts Harvest_Moon_2_GBC-Tools_and_Items Sidibela-Economy
Once the cereal plants have grown their seeds, they have completed their life cycle. The plants die and become brown and dry. As soon as the parent plants and their seed kernels are reasonably dry, harvest can begin. In developed countries, cereal crops are universally machine-harvested, typically using a combine harvester, which cuts, threshes, and winnows the grain during a single pass across the field. In developing countries, a variety of harvesting methods are in use, depending on the cost of labor, from combines to hand tools such as the scythe or cradle. If a crop is harvested during wet weather, the grain may not dry adequately in the field to prevent spoilage during its storage. In this case, the grain is sent to a dehydrating facility, where artificial heat dries it. In North America, farmers commonly deliver their newly harvested grain to a grain elevator, a large storage facility that consolidates the crops of many farmers. The farmer may sell the grain at the time of delivery or maintain ownership of a share of grain in the pool for later sale. Storage facilities should be protected from small grain pests, rodents and birds.
Stover is the leaves and stalks of field crops, such as corn (maize), sorghum or soybean that are commonly left in a field after harvesting the grain. It can be directly grazed by cattle or dried for use as fodder. It is similar to straw, the residue left after any cereal grain or grass has been harvested at maturity for its seed. Stover has attracted some attention as a potential fuel source, and as biomass for fermentation or as a feedstock for cellulosic ethanol production. Corn stover has also attracted interest in mushroom compost preparation. 
Also displayed are some Neolithic tools (from the 4th millennium BC): a fishing weight, and a blade for harvesting crops. 
There is a wide variety of tools in "Harvest Moon 2 GBC". Tools are used to carry out chores, care for livestock, and tend to crops. 
The economy is largely based on agriculture, farming, harvesting, trade and crafts. The main crops produced are sorghum, maize, rice, millet, sweet potatoes, beans and groundnuts and the cultivation of vegetables such as onion, tomato, eggplant, greens, squash, okra, etc. Cattle, sheep, goats, horses and poultry are reared, but are mostly intended for food supply. There is also a grains bank in the main town of Tigana with cereal. 