fertilizer    intabire
En-En dictionary 
guseba (-sevye)     v    to become barren (from lack of fertilizer)
barren    (to be, person) kugūmbaha
(plants) kurūmba
(place) uruharabuga
(thing, corn, etc.) ikirūmbirane
(to become from lack of fertilizer) guseba
En-En dictionary 
intabire (in-)     3  class 3
singular: i-,in-
plural: i-,in-
  
fertilizer