Triple superphosphate (TSP) yog ib qho ntawm thawj qhov kev ntsuas siab siab P P uas tau siv dav hauv xyoo 20 los ua haujlwm. Technically, nws yog lub npe hu ua calcium dihydrogen phosphate thiab raws li monocalcium phosphate, [Ca (H2PO4) 2 .H2O]. Nws yog qhov zoo tshaj plaws P qhov tseem ceeb, tab sis nws qhov kev siv tau poob qis vim tias lwm cov chiv chiv P tau dhau los ua neeg nyiam heev.

Kev Tsim Khoom
Lub tswvyim ntawm TSP ntau lawm kuj yooj yim. TSP non-ntau yog ua los ntawm reacting finely av phosphate pob zeb nrog kua phosphoric acid nyob rau hauv tej yam kev tov khoom. Granular TSP yog tsim zoo ib yam, tab sis qhov tawm ntawm slurry yog txau ua txheej txheej rau cov kab me me los tsim cov granules ntawm qhov loj me. Cov khoom lag luam los ntawm ob txoj kev tsim tawm raug tso cai kho rau ntau lub lis piam thaum cov tshuaj lom neeg maj mam tiav. Cov kev sib hloov thiab cov txheej txheem ntawm cov tshuaj tiv thaiv yuav sib txawv me ntsis nyob ntawm lub zog ntawm cov pob zeb phosphate.
Triple superphosphate nyob rau hauv cov ntaub ntawv hauv cov duab (tau qhia) thiab cov ntawv tsis ua haujlwm.
Kev Siv Khoom Ua Liaj Ua Teb
TSP muaj ntau txoj kev cog qoob loo nyob rau hauv uas ua rau nws xws li cov chaw nrov P ntau xyoo. Nws muaj cov ntsiab lus P siab tshaj ntawm cov chiv qhuav uas tsis muaj N. Tshaj li 90% ntawm tag nrho P hauv TSP yog dej soluble, yog li nws dhau los ua qhov tsim nyog rau kev cog tsob ntoo. Raws li av noo dissolves lub granule, cov av ntau cov kua tov ua kua qaub. TSP kuj tseem muaj 15% calcium (Ca), muab cov khoom noj cog ntxiv.
Kev siv TSP loj yog nyob rau qhov xwm txheej uas muaj ntau cov chiv chiv sib xyaw ua ke rau kev tshaj tawm rau saum npoo av lossis rau daim ntawv thov nyob rau hauv cov yeeb yaj kiab uas muaj zog nyob hauv qab. Nws kuj tseem yog qhov xav tau rau fertilization ntawm leguminous cov qoob loo, xws li alfalfa lossis taum, qhov twg tsis muaj ntxiv N fertilization xav tau los ntxiv kev lom N fixation.

Tswj kev xyaum
Cov npe ntawm TSP tau poob vim tias tag nrho cov ntsiab lus zoo (N + P2O5) qis dua ammonium phosphate chiv li monoammonium phosphate, uas los ntawm kev sib piv muaj 11% N thiab 52% P2O5. Cov nqi tsim tawm TSP tuaj yeem siab dua ammonium phosphates, ua rau kev lag luam rau TSP tsis muaj dej siab rau qee qhov xwm txheej.
Txhua cov chiv keeb P yuav tsum raug tswj kom zam kev poob hauv cov dej saum npoo av los ntawm teb. Phosphorus poob ntawm cov av ua liaj ua teb mus rau cov dej saum npoo av uas nyob ib sab tuaj yeem ua rau kom tsis muaj kev tsim kho algae. Cov tswv yim tswj kev noj zaub mov zoo tuaj yeem txo cov kev pheej hmoo no.
Kev Siv Hluav Taws Xob Tsis Siv
Monocalcium phosphate yog ib qho tseem ceeb muaj hauv cov hmoov ci. Cov kua qaub monocalcium phosphate ua nrog cov khoom siv alkaline los ua cov pa roj carbon dioxide, cov roj ntsha rau ntau cov khoom ci. Monocalcium phosphate feem ntau ntxiv rau cov tsiaj cov pluas noj yog ib qho tseem ceeb ntxiv ntawm cov phosphate thiab Ca.