NPK Compound feteleza kwenikweni ndi yayitali, iyenera kupanga fetereza m'munsi, feteleza wophatikizika amakhala ndi nayitrogeni, phosphorous, potaziyamu ndi michere ina, makamaka koyambirira kwa mbeuyo imakhudzidwa kwambiri ndi phosphorous, potaziyamu, phosphorus, feteleza wa potashi kuti apange feteleza woyambira kugwiritsa ntchito koyambirira. Feteleza wamagulu sayenera kugwiritsidwa ntchito pakamera mmera ndi mochedwa feteleza, pofuna kupewa umbombo ndi kukula. Kuwonongeka kwa feteleza wapakompyuta kumachedwa. Kwa mbewu zomwe zimakhala ndi fetereza wophatikiza ngati feteleza woyambira pofesa, feteleza wachangu wa nayitrogeni amayenera kuwonjezeredwa munthawi yoti azivala moyenera malinga ndi lamulo la fetereza wa mbewu zosiyanasiyana, kuti akwaniritse zosowa za mbeu.