Increased international trade contact, revolution in ag productivity
overseas, ports, trading vessels
government encouraged people to reclaim barren lands, cultivation, permanent possession of land
plow, irrigation systems
Cotton was very economic, collected, pits removed, beaten loose, drawn into yarns, weaved into cloth Jibei
Trade was huge, everyone was involved, ag supplies, other important things, Sui Dynasty, damaged productivity, national economy paralysis, tang ruinified, developing ag, reforms, juntai zhi, zuyongdiao system
burden lessened, more efficient, farm and ag technique were improved, irrigation rapid ag development, economy was great,
Comments