Tatolu superphosphate i Fofofota Fertilizers
Triple superphosphate (TSP), E faia i le phosphoric acid faʻapipiʻi ma le eleele phosphate papa.O se faʻamaʻi maualuga o le vai soluble phosphate, ma faʻaaogaina lautele mo le tele o eleele.E mafai ona fa'aogaina e fai ma fa'ameamea fa'avae, fa'ameamea fa'aopoopo, fa'ama'i fa'ama'i ma mea mata mo le gaosiga o le fa'apalapala.
O le TSP o se faʻamaʻi maualuga, faʻafefete i le vai, ma o lona aoga phosphorus e 2.5 i le 3.0 taimi nai lo le calcium masani (SSP).O le oloa e mafai ona faʻaaogaina e fai ma faʻalaʻau faʻavae, faʻaofuofu pito i luga, faʻalaʻau fatu ma mea mata mo le gaosiga o le faʻafefiloi;fa'aaoga lautele i araisa, saito, sana, sorghum, cotton, fualaau 'aina, fualaau faisua ma isi fua o mea'ai ma fua o le tamaoaiga;faʻaaogaina lautele i le eleele mumu ma le samasama eleele , Brown eleele, samasama fluvo-aquic eleele, eleele uliuli, eleele kinnamon, eleele lanu viole, eleele albic ma isi uiga eleele.
Ia fa'aaogaina le metotia fa'aleaganu'u masani (Den method) mo le gaosiga.
O le pauta papa phosphate (slurry) e tali atu i le sulfuric acid mo le tuueseeseina o le vai-malo ina ia maua ai le phosphoric acid faʻafefete susu.A maeʻa le faʻatonuga, e maua le phosphoric acid faʻapitoa.Concentrated phosphoric acid and phosphate rock powder ua fefiloi (chemically formed), ma o mea e tali atu e faaputu ma matua, granulated, mago, sieved, (pe a manaʻomia, afifi anti-caking), ma cooled e maua ai le oloa.
Superphosphate, e taʻua foi o le superphosphate masani, o se phosphate fertilizer saunia saʻo e ala i le pala phosphate papa ma le sulfuric acid.O vaega aoga autu o le calcium dihydrogen phosphate hydrate Ca (H2PO4) 2 · H2O ma se vaega itiiti o le phosphoric acid e leai se totogi, faʻapea foʻi ma le anhydrous calcium sulfate (aoga mo le sulfur deficated soil).Calcium superphosphate o loʻo i ai le 14% ~ 20% P2O5 aoga (80% ~ 95% o loʻo soluble i le vai), lea e faʻaaogaina i le vai-soluble faʻavavevave phosphate fertilizer.Efuefu po'o le efuefu pa'epa'e pa'epa'e (po'o vaega ninii) e mafai ona fa'aoga sa'o e fai ma fetilaisa phosphate.E mafai fo'i ona fa'aaogaina e fai ma mea e fai ai le fetilaisa fa'afefiloi.
O se fetilaisa e leai ni lanu pe efuefu malamalama (po'o le pauta).Solubility le tele o ia mea e faigofie ona solu i le vai, ae o nisi e le mafai ona solu i le vai ma faigofie ona solu ile 2% citric acid (citric acid solution).