Khoom siv
Nrog rau kev tsim cov polymers siab-polyvinyl chloride thiab polyethylene, cov yeeb yaj kiab yas tau siv dav hauv kev ua liaj ua teb.Nyiv thiab cov teb chaws Europe thiab Asmeskas tau ua tiav hauv kev siv cov yeeb yaj kiab tsev xog paj los npog hotbeds thaum xyoo 1950s, thiab tom qab ntawd npog me me thiab tsev cog khoom nrog cov txiaj ntsig zoo.kuv lub teb chaws qhia txog polyvinyl chloride ua liaj ua teb zaj duab xis nyob rau hauv lub caij nplooj zeeg ntawm 1955. Nws yog thawj zaug siv nyob rau hauv me me sheds los npog zaub nyob rau hauv Beijing, uas ua tiav cov nyhuv thaum ntxov kom loj hlob thiab yield nce.Lub tsev cog khoom yog Ameslikas yog ib qho khoom siv tshwj xeeb rau kev tsim zaub, thiab nrog kev txhim kho ntawm ntau lawm, daim ntawv thov ntawm lub tsev cog khoom tau dhau los ua ntau thiab ntau dua.Tam sim no, lub tsev cog khoom tau siv rau kev cog qoob loo ntawm potted paj thiab txiav paj;kev tsim cov txiv hmab txiv ntoo yog siv rau kev cog qoob loo ntawm txiv hmab txiv ntoo, txiv pos nphuab, txiv tsawb, melons, txiv duaj, thiab txiv kab ntxwv;kev tsim cov hav zoov yog siv rau kev cog qoob loo ntawm tsob ntoo seedlings thiab ornamental ntoo;kev lag luam yug me nyuam yog siv rau sericulture thiab yug me nyuam.Nqaij qaib, nyuj, npua, ntses thiab kib, thiab lwm yam.
