He loea ʻo Korea i ka hana ʻana i nā mīkini rotary tillers.

Hana ʻia nā huahana a pau me ke kila boron kiʻekiʻe, ma hope o ka hana ʻana a me ka hoʻoponopono wela ʻana, e hōʻoia i ka lawa ʻana o ka paʻa a me ke kūpaʻa o ka ʻaʻahu. Hoʻokuʻu ʻia aku nā huahana i Rusia, Lithuania, Sepania a me nā ʻāina ʻē aʻe, ma hope o nā hoʻāʻo mākeke he nui ʻole e nā mea kūʻai aku, ʻo kāna hana pono ka papa mua.