▁S ust en ance ▁far ming ▁serves ▁as ▁the ▁primary ▁occupation ▁for ▁most ▁Far ▁North ▁residents . ▁Cro ps ▁vary ▁from ▁area ▁to ▁area . ▁Far ▁to ▁the ▁south , ▁plan ters ▁may ▁raise ▁root ▁cro ps ▁such ▁as ▁man i oc , ▁but ▁as ▁one ▁moves ▁north , ▁c ere als ▁domin ate . ▁Ma ize ▁is ▁found ▁in ▁the ▁strip ▁between ▁Ch ad ▁and ▁Niger ia . ▁Gr ound n uts ▁are ▁in ▁Mar ou a ▁and ▁north west ▁and ▁in ▁the ▁Mand ara ▁Mountains . ▁The ▁season al ▁flo oding ▁of ▁the ▁Log one ▁River ▁and ▁May o ▁Ts an aga ▁supports ▁large ▁fields ▁of ▁rice . ▁Mil let ▁and ▁s org hum ▁grow ▁all ▁over , ▁though ▁mil let ▁tends ▁to ▁grow ▁better ▁than ▁s org hum ▁in ▁ar id ▁conditions . ▁Cot ton ▁is ▁common , ▁especially ▁in ▁the ▁Diam ar é ▁P lain , ▁though ▁it ▁grows ▁poor ly ▁in ▁the ▁sw amp y ▁Log one ▁valley . ▁Be ans ▁are ▁also ▁common . ▁ ▁Village ▁far mers ▁typically ▁sow ▁in ▁concent ric ▁circles ▁around ▁the ▁farm . ▁Hed ges ▁surr ound ▁the ▁farm ▁to ▁keep ▁away ▁animals . ▁Farm ing ▁tools ▁are ▁typically ▁simple ▁ho es , ▁sick les , ▁kn ives , ▁and ▁mach etes . ▁Far ml and ▁is ▁bur nt ▁during ▁the ▁dry ▁season , ▁then ▁cro ps ▁are ▁plant ed ▁at ▁the ▁first ▁ra ins . ▁These ▁far ms ▁can ▁be ▁quite ▁extensive , ▁as ▁in ▁the ▁Mand ara ▁Mountains ▁area .