▁China ' s ▁population ▁lived ▁north ▁of ▁the ▁river ▁Yang t ze , ▁but ▁by ▁ 1 2 5 0 , ▁ 7 5 % ▁of ▁China ' s ▁population ▁lived ▁south ▁of ▁the ▁river ▁Yang t ze . ▁Such ▁large - scale ▁internal ▁migration ▁was ▁possible ▁due ▁to ▁introduction ▁of ▁quick - ri pen ing ▁stra ins ▁of ▁rice ▁from ▁Vietnam ▁suitable ▁for ▁multi - cro pping . ▁ ▁Local ities ▁in ▁China ▁which ▁are ▁famous ▁for ▁their ▁spect ac ular ▁rice ▁p add ies ▁are ▁Yu any ang ▁County , ▁Y unn an , ▁and ▁Long sh eng ▁County , ▁Gu ang xi . ▁ ▁India ▁▁ ▁India ▁has ▁the ▁largest ▁p addy ▁output ▁in ▁the ▁world ▁and ▁is ▁also ▁the ▁fourth ▁largest ▁exp orter ▁of ▁rice ▁in ▁the ▁world . ▁In ▁India , ▁West ▁Beng al ▁is ▁the ▁largest ▁rice ▁producing ▁state . ▁P addy ▁fields ▁are ▁a ▁common ▁sight ▁throughout ▁India , ▁both ▁in ▁the ▁northern ▁gang etic ▁pla ins ▁and ▁the ▁southern ▁pen ins ular ▁plate aus . ▁P addy ▁is ▁cultiv ated ▁at ▁least ▁twice ▁a ▁year ▁in ▁most ▁parts ▁of ▁India , ▁the ▁two ▁seasons ▁being ▁known ▁as ▁Rab i ▁and ▁K har if ▁respectively . ▁The ▁former ▁cultiv ation ▁is ▁dependent ▁on ▁ir rig ation , ▁while ▁the ▁latter ▁depends ▁on ▁Mon so on . ▁The ▁p addy ▁cultiv ation ▁plays ▁a ▁major ▁role ▁in ▁so cio - c ult ural ▁life ▁of ▁rural ▁India . ▁Many ▁festiv als ▁such ▁as ▁On am ▁in ▁Ker