Ngaphansi kokukhanya kwelanga ehlobo, ukukhanya kungafinyelela ku-60000 kuya ku-100000 lux.Ezitshalweni, indawo yokugcwala ukukhanya kwemifino eminingi ingu-30000 kuya ku-60000 lux.Isibonelo, indawo ekhanyayo yokugcwala kukapelepele ingu-30000 lux, eyesitshalo seqanda ingu-40000 lux, kanti leyo yekhukhamba ingu-55000 lux.
Ukukhanya okudlulele kuzoba nomthelela omkhulu ku-photosynthesis yezitshalo, okuholela ekuvinjweni kokumuncwa kwe-carbon dioxide, umfutho wokuphefumula ngokweqile, njll. Yile ndlela okwenzeka ngayo "ukuphumula kwasemini" kwe-photosynthesis ngaphansi kwezimo zemvelo.
Ngakho-ke, ukusebenzisa amanetha e-shading ngesilinganiso esifanele se-shading akukwazi nje ukunciphisa izinga lokushisa endaweni emini, kodwa futhi kuthuthukise ukusebenza kahle kwe-photosynthetic yezitshalo, ukubulala izinyoni ezimbili ngetshe elilodwa.
Uma sicabangela izidingo zokukhanyisa ezihlukene zezitshalo kanye nesidingo sokulawula izinga lokushisa elichithwayo, kufanele sikhethe inetha le-shading elinezinga elifanele le-shading.Akumele sibe ngabahahela imali eshibhile futhi sikhethe ngokuthanda kwakhe.
Ku-pepper enephuzu eliphansi lokugcwala kokukhanya, inetha le-shading enezinga eliphezulu le-shading lingakhethwa, isibonelo, izinga le-shading liyi-50% ~ 70%, ukuze kuqinisekiswe ukuthi ukukhanya okukhanyayo ku-shed cishe ku-30000 lux;Ezitshalweni ezinephuzu eliphezulu le-isochromatic saturation lekhukhamba, kufanele kukhethwe inetha le-shading elinezinga eliphansi le-shading, isibonelo, izinga lomthunzi kufanele libe ngu-35 ~ 50% ukuze kuqinisekiswe ukuthi ukukhanya eshedini kungu-50000 lux.