Ulingo lwenziwa ngaxeshanye ebusika, elinye likwindlu eluhlaza kunye ne-HID toplighting, enye kwi-greenhouse ene-LED toplighting, kunye nenye kwifama yedolophu enezibane ze-LED. Izivuno ezifanayo ze lettuce kunye nesichumiso esifanayo zasetyenziswa kuzo zontathu izilingo. Izityalo ezikwifama yesixeko ngakumbi, zazinamanqanaba asezantsi kakhulu e-nitrate, kuba zazikhuliswa ngokungaguquguqukiyo kunye nokukhanya okufanelekileyo yonke imihla.
Izityalo ezikhuliswe kwi-greenhouse phantsi kwe-HID kunye ne-LED zombini zinezinga eliphezulu le-nitrate kuba zichatshazelwa ziimeko zemozulu ezahlukeneyo kunye namanqanaba okukhanya angaphantsi kunowona aphezulu. Izityalo zadibana neentsuku ezinamafu, ilanga, ukubanda kunye nokufudumala, apho ii-nitrate ziqokelelana kumagqabi ezityalo. Iziphumo zolu vavanyo ziqinisekisile ukuba ngaphezu kokukhanyisa kwe-LED, imozulu yiparameter ebalulekileyo yokulawula ukwandisa ukunciphisa i-nitrate.
Kwizityalo ezininzi ze-lettuce, ngaphantsi kwe-1500 mg/kg ye-nitrate inokufezekiswa nje ngokulungelelanisa iresiphi yokukhanya ngaphakathi kwendawo yokukhula enikiweyo. Oku akuzange kuchaphazele isivuno okanye ezinye iinkalo zomgangatho, ezifana nobomi beshelufu kunye nomxholo wevithamini. Ukudibanisa iresiphi ekhanyayo kunye neqhinga lokunkcenkceshela eliguquguqukayo kunokuwehlisa ngakumbi la manqanaba ukuba uyanqweneleka. Isicwangciso esifanayo sinokusetyenziswa kwi-greenhouse esebenzisa izibane ezongezelelweyo ze-LED ngokulungelelanisa iiparamitha zemozulu kunye nokukhanya ukuze kusebenze kunye. Kuvavanyo lwe-greenhouse kunye nokukhanyisa kwe-LED, siphumelele amanqanaba aphantsi e-nitrate kunelingo kwi-greenhouse kunye nokukhanyisa kwe-HID.
