Txoj kev txhim kho kev siv tus nqi ntawm steel ncej tsev cog khoom
Kev siv steel-thav duab tsev xog paj yog ib txwm siv los txhim kho cov khoom thiab kev ua haujlwm zoo. Qhov siab dua qhov kev siv ntawm steel-thav duab tsev cog khoom, ntau cov neeg siv yuav nyiam lawv thiab xav tias steel-thav duab tsev cog khoom tsim nyog siv. Nov yog qee txoj hauv kev los txhim kho kev siv tus nqi ntawm steel ncej tsev cog khoom:
① Hloov txoj kev cog thiab ntau yam:
Tom qab tib hom qoob loo cog rau hauv tsev cog khoom rau ntau xyoo, yog tias peb xav txhim kho cov txiaj ntsig mus rau qib siab dua, peb yuav tsum ua haujlwm hnyav rau kev cog thiab hom. Piv txwv li, yog hais tias grafting yog siv mus txuas ntxiv loj hlob cucumbers nyob rau hauv steel-thav duab tsev cog khoom, yog hais tias lwm yam ntau yam yog siv rau grafting, nws muaj peev xwm tiv thaiv tau qhov tshwm sim ntawm ntau yam kab mob thiab ua rau kom cov yield ntau tshaj 30 feem pua;
② Hloov mus rau cov yeeb yaj kiab uas tsis yog dej:
Nrog polyethylene tsis-drip zaj duab xis, cov dej vapor nyob rau hauv steel ncej tsev cog khoom yuav tsis condense rau hauv cov dej tee ntawm zaj duab xis, uas yuav tsis muaj shading nyhuv rau cov qoob loo nyob rau hauv lub steel ncej tsev cog khoom. Yog hais tias lub teeb transmittance ntawm steel ncej tsev cog khoom muaj peev xwm tswj tau ntawm 90 feem pua ntawm sab laug thiab sab xis, cov photosynthesis ntawm cov qoob loo tuaj yeem lav;
③ Av:
Cov qoob loo nyob rau hauv steel-thav duab tsev xog paj feem ntau cuam tshuam loj heev los ntawm kev cog qoob loo tas li, yog li nws yog qhov tsim nyog los tua cov kab mob uas kis tau los ntawm cov av;
④ Siv ob txheej txheej rwb thaiv tsev:
Txhawm rau tso cai rau cov qoob loo hauv steel-thav duab tsev cog khoom kom loj hlob ib txwm nyob rau lub caij ntuj no, nws yog qhov zoo dua los siv ob txheej txheej rwb thaiv tsev, uas yog, npog lub tsev cog khoom steel-thav duab nrog yas zaj duab xis lossis teeb tsa me me arched, uas. tuaj yeem ua tiav cov txiaj ntsig zoo.
