Imisumari y’imigozi: imitwe ikozwe ikonje n’imigozi izungurutswa

Imisumari y’imigozi myinshi ikorwa mu ntambwe eshatu: gukora umutwe, kuzunguruza umugozi no gusiga. Urusinga ruva ku muzingo rucibwa mo ibice, buri gice kigakorerwa umutwe gikonje: igikoresho cyo gukanda gikanda umusozo mu gikoresho gifite ishusho y’umutwe, bityo umutwe uringaniye ukaba uvuye ku gikoresho kiringaniye, hafi nta myanda. Umugozi nyuma ukorwa uzunguruzwa, ntucibwa: igice kizunguruzwa hagati y’ibikoresho bikomeye bigikandamo umugozi. Kuzunguruza ntibisiga ibivuyemo, bikenera igice cyoroshye ku 15–20 % kurusha guca, bitanga umugozi ukomeye ku 10–20 %, kandi bikora hafi igice kimwe ku isegonda. Imisumari myinshi nyuma isigwa zinc cyangwa ikirabura kugira ngo itafatwa n’ingese.