Pali zinthu zambirimbiri zomwe alimi ayenera kutengera pomanga greenhouse kapena malo olima.
Choyamba, pali zozungulira moyo zomera ndi kukula malo kuwala. Ndiye, pali kutentha ndi kuwala sipekitiramu, osatchula malo ndi msika. N'zosadabwitsa kuti kuchita zimenezi kungakhale kovuta kwambiri kuti tiyambepo. Chowonjezera nkhaniyi ndi mawu achidule, ndipo monga mafakitale ambiri, agritech ili ndi mawu akeake omasulira. Ma acronyms awa - PAR, PPF, PPFD - omwe amagwiritsidwa ntchito limodzi ndi mawu ngati ma watts, lumens, photon bwino ndi LUX, ndizofunikira kwambiri kukuthandizani kupita patsogolo m'gawo lomwe mwasankha (kwa ena, kwenikweni) kuti mupange malo abwino okulirapo ndi zokolola.
Komabe, monga zinthu zambiri m'moyo, kumvetsetsa zomwe akutanthauza kungawoneke ngati kovutirapo koma kumatha kuzidziwa posachedwa. Apa, tikupereka chidule cha zomwe PAR, PPF ndi PPFD zikutanthawuza, komanso chifukwa chake ndizofunikira kuti mudziwe:
PAR (Photosynthetic Active Radiation)
PAR ndi mtundu wa kuwala komwe kumayambitsa photosynthesis ndipo kumachitika pamene chomera chanu chimadya ma photon of wavelengths owala omwe amakhala mkati mwa mawonekedwe a 400 ndi 700 nanometers.
Potanthauziridwa ndi kafukufuku wopangidwa ndi Dr. Keith McCree koyambirira kwa zaka za m'ma 1970, PAR samayesa kuwala koma ndi mawu omwe angathandize wolima kudziwa mtundu ndi kuchuluka kwa kuwala kofunikira kuti mbewu ikhale yabwino komanso thanzi. Mothandizidwa ndi makina owunikira kuti atsanzire kuwala kwachilengedwe, kuwala kwa PAR kumatha kukonzedwa ndi njira zina zowunikira kuti zisinthe kachulukidwe, kagwiritsidwe ntchito, ndi miyeso.
Kodi izi zikutanthauza chiyani kwa wolima?
PAR ndi liwu lomwe liyenera kugwiritsidwa ntchito kuti lithandizire kuzindikira momwe kuyatsa koyenera komanso kugwiritsidwira ntchito.
Zina mwazinthu zofunika kuzimvetsetsa musanagule magetsi okulirapo kapena kusaina chilichonse ndikudziwa kuchuluka kwa PAR yomwe amapanga, mphamvu zomwe amagwiritsa ntchito popanga PAR yawo, komanso kuchuluka kwa PAR komwe kulipo kwa mbewu.
PPF (Photosynthetic Photon Flux)
PPF ndi liwu lomwe limagwiritsidwa ntchito kufotokozera muyeso wa PAR ndipo ndi gawo lachiwiri lofunikira pazakudya zanu pakuwunikira koyenera kwa malo anu okulirapo. Mtengo wake umatsimikizira kuchuluka kwa PAR yomwe ikupangidwa ndi njira iliyonse yowunikira pakanthawi kamphindi. PFF ikuthandizani kuti mudziwe kuchuluka kwa magetsi omwe makina anu opangira magetsi akupangira angagwiritsidwe ntchito ndi mbewu zanu kupanga photosynthesis.
Kodi izi zikutanthauza chiyani kwa wolima?
Kumvetsetsa ndondomekoyi ndi theka la nkhondo yomvetsa zomwe PPF ili - zimafunanso luso la masamu. Mutha kudalira zida zoyezera za PPF zomwe zilipo pamsika kuti zikuthandizeni, kapena mutha kusankha kugwira ntchito ndi mnzanu wodalirika yemwe angakuthandizeni kupanga njira yowunikira yomwe ikugwirizana ndi zomwe mukufuna pokupatsirani PAR ndi PPF yoyenera kwa inu. PPF ndi ma micromoles pa sekondi imodzi (µMol/S) - micromole imodzi ili pafupi ndi 602 quadrillion photons.
PPFD (Photosynthetic Photon Flux Density)
Gawo lachitatu la PAR jigsaw ndi PPFD. Amayezedwa mu ma micromoles pa sikweya mita pa sekondi imodzi (µMol/m2/S) ndipo amapitilira kungoyeza PPF, imakhazikitsanso kuchuluka kwa ma photon akugwera pamalo enaake. PPFD imangonena za kuchuluka kwa mafotoni ofunikirawo, a photosynthetic omwe akukhudza malo okulirapo komanso momwe nyalizo zimagwirira ntchito bwino zikafika pakutulutsa kwawo.
Kodi izi zikutanthauza chiyani kwa wolima?
Ndikofunikira kuwonetsetsa kuti deta ya PPFD yomwe mumapeza kuchokera kwa wopanga kuwala kwanu ndi yolondola ndipo imaphimba mbali yonse ya kuwala. Ndizosavuta kutikita minofu izi, choncho ganizirani zinthu monga mtunda kuchokera kugwero la kuwala, miyeso ingapo yomwe imawerengera pafupifupi, ndi chiŵerengero chocheperako/chopambana musanagule. Apanso, ndikofunikira kulingalira kugwira ntchito ndi katswiri wodalirika wokulirapo yemwe angakupatseni ma metric oyenera ndi zida zoyenera kuti mupindule kwathunthu ndi PAR, PPF, ndi PPFD.
Kuti mudziwe zambiri:
Light Science Tech
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