Musiyano Pakati peDAP neNPK Fertilizer

Musiyano mukuru pakati pefetireza yeDAP neNPK ndewekuti fetereza yeDAP hainapotassiumnepo fetireza yeNPK ine potassium zvakare.

Chii chinonzi DAP Fertilizer?

Mafetereza eDAP ndiwo masosi enitrogen uye phosphorus ayo anoshandiswa zvakanyanya mukurima.Chinhu chikuru mufetireza iyi idiammonium phosphate ine makemikari formula (NH4)2HPO4.Uyezve, zita reIUPAC rekomboni iyi ndiro diammonium hydrogen phosphate.Uye inonyungudika nemvura ammonium phosphate.

Mukugadzirwa kwefetereza iyi, tinoita kuti phosphoric acid pamwe neammonia, iyo inoita slurry inopisa iyo inozotonhodzwa, yoitwa granulated uye kusefa kuti tiwane fetereza yatingashandisa mupurazi.Uyezve, isu tinofanirwa kuenderera nekuita pasi pemamiriro akadzorwa nekuti maitiro anoshandisa sulfuric acid, ine njodzi kubata.Naizvozvo, giredhi rezvikafu zvefetireza iyi 18-46-0.Izvi zvinoreva kuti ine nitrogen nephosphorous muchikamu che18:46, asi haina potassium.

Kazhinji, tinoda matani anosvika 1.5 kusvika ku2 edombo rephosphate, 0.4 matani esarufa (S) kunyungudutsa dombo, uye 0.2 matani eammonia pakugadzirwa kweDAP.Uyezve, pH yechinhu ichi ndeye 7.5 kusvika 8.0.Naizvozvo, kana tikawedzera fetireza iyi muvhu, inogona kugadzira alkaline pH yakatenderedza fetireza granules inonyungudika mumvura yevhu;nokudaro mushandisi anofanira kudzivisa kuwedzera huwandu hwefetireza iyi.

Chii chinonzi NPK Fertilizer?

Mafetereza eNPK mafetireza ezvikamu zvitatu anobatsira zvikuru pakurima.Fetereza iyi inoshanda senzvimbo ine nitrogen, phosphorus uye potassium.Naizvozvo, inzvimbo yakakosha yezvese zvitatu zvakakosha zvinovaka muviri izvo chirimwa chinoda pakukura kwayo, kukura uye kushanda kwayo.Zita rechinhu ichi rinoratidzawo kudya kwachinokwanisa kupa.

NPK rating kusanganiswa kwenhamba dzinopa chiyero chiri pakati penitrogen, phosphorous nepotassium zvinopihwa nefetireza iyi.Iko kusanganiswa kwenhamba nhatu, dzakaparadzaniswa nemadhishi maviri.Semuenzaniso, 10-10-10 inoratidza kuti fetereza inopa 10% yekudya kwega kwega.Ikoko, nhamba yekutanga inoreva chikamu che nitrogen (N%), nhamba yechipiri ndeye phosphorous percentage (mumhando dzeP2O5%), uye chechitatu ndeye potassium percentage (K2O%).