Umahluko Phakathi kweDAP kunye neNPK Fertilizer

Umahluko ophambili phakathi kweDAP kunye neNPK yesichumisi kukuba isichumisi seDAP asinayoipotassiumngelixa isichumiso seNPK sine potassium ngokunjalo.

Yintoni iDAP Fertilizer?

Izichumisi zeDAP ziyimithombo yenitrogen kunye nephosphorous esetyenziswa ngokubanzi kwiinjongo zezolimo.Inxalenye enkulu kwesi sichumisi yi-diammonium phosphate ene-chemical formula (NH4)2HPO4.Ngaphezu koko, igama le-IUPAC lale khompawundi yi-diammonium hydrogen phosphate.Kwaye yi-ammonium phosphate enyibilikayo emanzini.

Kwinkqubo yokuveliswa kwesi sichumisi, sisabela nge-asidi ye-phosphoric kunye ne-ammonia, eyenza i-slurry eshushu ethi emva koko ipholiswe, ihlulwe kwaye ihlulwe ukufumana isichumisi esinokusisebenzisa efama.Ngaphezu koko, kufuneka siqhubeke nokusabela phantsi kweemeko ezilawulwayo ngenxa yokuba impendulo isebenzisa i-asidi ye-sulfuric, eyingozi ukuyiphatha.Ngoko ke, ibakala eliqhelekileyo lezondlo zesichumisi li-18-46-0.Oku kuthetha ukuba, inenitrogen kunye nephosphorous kumlinganiselo we-18:46, kodwa ayinayo i-potassium.

Ngokuqhelekileyo, sidinga malunga ne-1.5 ukuya kwi-2 yeetoni ze-phosphate rock, i-0.4 yeetoni zesulfure (S) ukunyibilikisa ilitye, kunye ne-0.2 yeetoni ze-ammonia ukuveliswa kwe-DAP.Ngaphezu koko, i-pH yale nto yi-7.5 ukuya kwi-8.0.Ngoko ke, ukuba songeza esi sichumisi emhlabeni, sinokwenza i-alkaline pH ejikeleze i-granules yesichumisi esinyibilikayo emanzini omhlaba;ngoko ke umsebenzisi kufuneka akuphephe ukongeza isixa esikhulu sesi sichumiso.

Yintoni isichumisi se-NPK?

Izichumisi ze-NPK zizichumisi ezintathu eziluncedo kakhulu kwiinjongo zolimo.Esi sichumiso sisebenza njengomthombo wenitrogen, phosphorus kunye ne potassium.Ngoko ke, ngumthombo obalulekileyo wazo zontathu izondlo eziphambili ezifunwa sisityalo ekukhuleni kwaso, ukukhula kunye nokusebenza ngendlela eyiyo.Igama lale ngxube likwachaza isondlo esinokusinika sona.

Umlinganiselo we-NPK yindibaniselwano yamanani anika umlinganiselo phakathi kwenitrogen, iphosphorous kunye ne potassium enikwa sesi sichumiso.Kukudityaniswa kwamanani amathathu, ahlulwe ngemidiza emibini.Ngokomzekelo, i-10-10-10 ibonisa ukuba isichumisi sibonelela nge-10% yesondlo ngasinye.Apho, inani lokuqala libhekisela kwipesenti ye-nitrogen (N%), inombolo yesibini ipesenti ye-phosphorous (kwiifom ze-P2O5%), kwaye yesithathu ipesenti ye-potassium (K2O%).