Lub Kaum Ob Hlis 28, 2020 Urea Daim Ntawv Qhia Txhua Lub Limtiam

Tam sim no lub ntsiab ntawm urea Hoobkas nyob rau hauv shandong koog tsev kawm ntawv 1810 (tons ntawm tus nqi, zoo ib yam li no tom qab), linyi cheeb tsam compound fertilizer enterprise rau urea los ntawm tus nqi 1810-1820, hebei cheeb tsam ntawm urea mainstream ex-Factory nqi yog 1830, muab ib ntus stability, thaum ntxov momentum. kev txiav txim tsis muaj, thiab muab qhov tseem ceeb rau downstream ntawm sidelines, ob lub teeb kev lag luam, kaw me ntsis, cov tuam txhab lag luam pib ua kom ruaj khov, Vim tias cov khoom siv tsis ntev los no yog tsawg, lub Hoobkas hais lus tsawg kawg yog ruaj khov; Lub Hoobkas hais ntawm cov khoom siv hluav taws xob tsis ntev los no. urea nyob rau hauv Henan cheeb tsam yog 1810-1820, thiab cov quotation yog me ntsis nce.Shanxi cheeb tsam urea mainstream Hoobkas quotation 1740, 1780 loj particles.Lub mainstream Hoobkas quotation ntawm urea nyob rau hauv Anhui yog 1800, thiab cov quotation yog ruaj khov ib ntus.Cov kev lag luam high-end xa mus rau 1890. Qhov kev thov ntawm cov kev lag luam nyob ib puag ncig yog dav dav, tsuas yog cov kev lag luam xav tau tsim nyog rau cov khoom, tab sis cov khoom muag ntawm feem ntau cov chaw tsim khoom me me, yog li cov lus hais tuaj yeem ruaj khov ib ntus tsawg kawg.Jiangsu cheeb tsam urea mainstream Hoobkas hais 1940.