He aha te Utu mo te Raina Whakangao Wairaka Waiwai NPK me te ROI e tumanakohia ana?
Ko te haumi i roto i te wheketere tongi wai NPK kei runga i tona tauine. Hei tauira, te 1000L/H NPK wai tongi production utu raina $21,000-$50,000; i tenei wa, te kaupapa hanga tongi wai NPK nui, me te kaha o 10-20 haora/haora, awhe mai $200,000 ki $500,000. I te wa ano, kia whakaaro hoki koe te utu o te rauemi raw, rohe, mahi, etc... He ataahua te ROI mo te tiimata i te mahere pakihi tongi wai NPK. Hei tauira, Ka hokona te tongi NPK wai mo $200-$400 mo ia tana, i te wa toharite utu rauemi mata $80-$120 mo ia tana. He 5 T/H raina rere 8 haora ia ra hua e pā ana ki 40 tana ia ra. He hua kerekere o tenei $3,200-$12,800 ia ra. He maha nga wa utu 6-18 marama, i runga i te tauine whakaputa, utu mākete rohe, me te utu mahi. Tikina he otinga