Gupakira amasahani yo hepfo ya padi byashizweho kugirango bihuze nigikorwa cyabantu. Binyuze mu bwigenge bwo guterura ibiro byigenga, gutandukana no guhuza ibikorwa birashobora gukorwa kugirango imbaraga zimitsi zishyurwe kandi zitange imitsi itandukanye. Iremera ikorwa ryinzira idasanzwe, bitandukanye cyane nigitangazamakuru cyinyuma.