Mutsauko pakati peDap uye npk fettilizer

Musiyano mukuru pakati peDap uye npk fettilizer ndeyekuti dap fetiralizer hainaPotassiumnepo iyo NPK feteralizer ine potassium futi.

Chii chinonzi dati fetiraiza?

DAP fettilizer ndeye masosi e nitrogen uye phospharous iyo ine yakasarudzika kushandiswa mune zvekurima zvinangwa zvekurima. Chikamu chikuru mune ino fetiraiza iri diammonium phosphate iyo ine makemari formula (NH4) 2HPo4. Uyezve, iyo IUPAC zita reiyi nzvimbo yakanyorwa iri diammonium hydrogen phosphate. Uye inova mvura-inoyera amonium phosphate.

Mukugadzira maitiro eiyi fettilizer, tinoita phosphoric acid neAmmonia, iyo inoumba slurry inopisa iyo yakazotonhorera, yakatsemurwa uye yakanyoroveswa kuti iwane fetiraiza iyo yatinogona kushandisa mupurazi. Uyezve, isu tinofanirwa kuenderera nekuita kwemamiriro ezvinhu anodzorwa nekuti maitiro anoshandisa sulfuric acid, ine njodzi kubata. Naizvozvo, iyo yakajairwa giredhi rekodhi yeiyi fetiraiza ndeye 18-46-0. Izvi zvinoreva, ine nitrogen uye phosphorus muhuwandu hwa 18:46, asi haina potassium.

Kazhinji, isu tinoda anenge 1.5 kusvika maviri matani ePhosphate Rock, 0.4 matani eSulfa (uye ematani) kuti afadze dombo, uye 0,2 matani eAmoni yekugadzirwa kweDap. Uyezve, iyo pH yeichi chinhu ndeye 7.5 kusvika 8.0. Naizvozvo, kana isu tichiwedzera iyi fetiraizer kune ivhu, inogona kugadzira alkaline ph kutenderedza magirazi egirinhi anonyungudika mumvura ine ivhu; Saka mushandisi anofanira kudzivisa kuwedzera huwandu hwakanyanya hweiyi feteraiza.

Chii chinonzi npk fetiraiza?

NPK fettilizers ndeye matatu component fettilizer ayo anobatsira zvakanyanya zvekurima. Iyi feteraiza inoita seinobva nitrogen, phosphorous uye potassium. Naizvozvo, ibasa rakakosha rezvipenyu zvese zvekutanga zvekuti chirimwa chinoda kukura kwayo, kukura uye kushanda kwakakodzera. Iro zita rechinhu ichi runotaurawo zvinovaka kuti zvivepo.

NPK ratidziro ndiyo musanganiswa wehuwandu hunopa iyo chiyero pakati pe nitrogen, phospharous uye potassium yakapihwa neiyi feteraiza. Iko kusanganiswa kwenhamba nhatu, dzakaparadzaniswa nemakonzo maviri. Semuenzaniso, 10-10-5 inoratidza kuti iyo fetiraiza inopa 10% yezvechimwe chinhu chimwe nechimwe. Ikoko, nhamba yekutanga inoreva iyo muzana yeNitrogen (N%), iyo nhamba yechipiri ndeye phospharous muzana (mune mafomu eP2O5%), uye yechitatu ndeye potassium muzana (K2O%).