Ko te kōpūpahi NPK mō te hydrolysat ngākirini he mea āhuatia hei āwhina i ngā wāhanga rerekē o te tipu ngākirini. Ko tōna hanganga motuhake e whakapakari ana i te hauora me te piro pūhaunui o te ngākirini ki te oneone. Ko te kōpūpahi ngākirini e noho taratara ana me ngā waiwaka tika o te nitrogine, phosphorus, me te potassium e whakapakari ana i te hauora o te ngākirini, ā, e whakapai ake ana i tōna mātai ki ngā tahū me ngā wāhi pā ki te taiao. Ka piki ake te hua me te kounga o te ngākirini. Ko te hydrolysat kōpūpahi NPK ngākirini e whakapakari ana i te hua o te ngākirini.