Triple superphosphate (TSP) ndi imodzi mwa feteleza woyamba wowunika wa P omwe adagwiritsidwa ntchito kwambiri mzaka za zana la 20. Mwaukadaulo, imadziwika kuti calcium dihydrogen phosphate komanso monocalcium phosphate, [Ca (H2PO4) 2 .H2O]. Ndi gwero labwino kwambiri la P, koma kugwiritsa ntchito kwake kwatsika chifukwa feteleza wina wa P adayamba kutchuka.

Kupanga
Lingaliro la kupanga TSP ndi losavuta. Non-granular TSP imapangidwa ndimitundu yambiri yamchere ya phosphate yokhala ndi phosphoric acid m'madzi osakanikirana. Granular TSP imapangidwanso chimodzimodzi, koma slurry yomwe imatulutsidwa imadzazidwa ngati zokutira tinthu tating'onoting'ono kuti timange ma granules ofunikira. Zomwe zimapangidwa kuchokera kuzinthu zonse ziwiri zimaloledwa kuchira kwa milungu ingapo momwe zimachitikira pang'onopang'ono. Zomwe zimapangidwira ndi momwe zimayankhira zimasiyana mosiyanasiyana malinga ndi matanthwe a phosphate.
Katatu superphosphate mu granular (yowonetsedwa) ndi mitundu yopanda granular.
Kugwiritsa Ntchito Zaulimi
TSP ili ndi maubwino angapo agronomic omwe adapangitsa kuti ikhale yotchuka P kwa zaka zambiri. Ili ndi feteleza wambiri wa P omwe alibe N. Pafupifupi 90% ya P yonse mu TSP ndiyosungunuka ndi madzi, motero imapezeka mosavuta kuti mbewu zizitengedwa. Chinyezi cha dothi chitasungunuka ndi granule, njira yolimba ya nthaka imakhala acidic. TSP imakhalanso ndi 15% ya calcium (Ca), yopatsa michere yowonjezera yazomera.
Kugwiritsa ntchito kwakukulu kwa TSP kumakhala m'malo omwe feteleza angapo olimba amaphatikizidwa kuti afalikire panthaka kapena kuti agwiritsidwe ntchito pagulu lokhathamira pansi pake. Ndikofunikanso kumera mbeu zokolola, monga nyemba za nyemba kapena nyemba, pomwe palibe feteleza wowonjezera wa N wofunikira kuthandizira kukonza kwa N.

Zochita Zoyang'anira
Kutchuka kwa TSP kwatsika chifukwa kuchuluka kwa michere yonse (N + P2O5) ndikotsika kuposa feteleza wa ammonium phosphate monga monoammonium phosphate, yomwe poyerekeza ili ndi 11% N ndi 52% P2O5. Ndalama zopangira TSP zitha kukhala zapamwamba kuposa ammonium phosphates, ndikupangitsa kuti zachuma za TSP zisakhale zabwino nthawi zina.
Manyowa a P akuyenera kuyang'aniridwa kuti asapewe zotayika m'madzi othamanga kumtunda. Kutaya kwa phosphorous kuchokera kumunda waulimi kupita kumadzi oyandikira pamwamba kumatha kuthandizira kukweza kwakukula kwa ndere. Njira zoyenera zoyendetsera zakudya zingachepetse ngozi imeneyi.
Ntchito Zosagwiritsa Ntchito Zaulimi
Monocalcium phosphate ndichofunikira popangira ufa wophika. Asidi ya monocalcium phosphate imagwiranso ntchito ndi zinthu zamchere kupanga carbon dioxide, chotupitsa cha zinthu zambiri zophikidwa. Monocalcium phosphate nthawi zambiri imawonjezeredwa pazakudya zanyama monga chofunikira chamchere chowonjezera cha phosphate ndi Ca.