Ferrous sulphate monohydrate o se faʻapipiʻi faʻapipiʻi masani e fai ma faʻaopoopoga o le Fe ma se faʻamalosia mo le faʻaaogaina o elemene N, P i laʻau. Pe a faʻaaogaina e fai ma faʻalaʻau faavae mo le eleele, e mafai ona fesoasoani e puipuia faʻamaʻi e pei o le fuga chlorotic disorder; fugala'au ma lona fofo, e mafai ona fesoasoani e puipuia iniseti faalafua po o faamai e pei o le dactylieae, chlorosis, cotton anthracnose, etc.Adding ferrous sulphate i meaʻai e mafai ona puipuia lelei maʻi e pei o le iron-deficiency anemia, iron-deficiency lasitude, le vevela o le tino, etc.E mafai foi ona faʻateleina le ola o lafumanu, faʻaleleia lona tuputupu aʻe ma le atinaʻe, faʻamalosia lona faʻamaʻi.