Umehluko phakathi komanyolo we-dap no-npk

Umehluko osemqoka phakathi komanyolo we-dap no-npk ukuthi umanyolo we-DAP awunaloitusiumkanti umanyolo we-NPK uqukethe i-potassium futhi.

Uyini Umanyolo we-DAP?

Umanyolo we-DAP yimithombo ye-nitrogen ne-phosphous enokusetshenziswa okubanzi ngezinhloso zezolimo. Ingxenye enkulu kulo manyolo phosphate yefomula (NH4) 2HPO4. Ngaphezu kwalokho, igama le-IUPAC lale nhlanganisela yi-Dydmonium Hydrogen phosphate. Futhi kuyi-Ammonium phosphate ye-Ammonium.

Ehlelweni lokukhiqiza lalo manyolo, senze usabela i-phosphoric acid nge-ammonia, eyakha i-slurry eshisayo esepholile, ihlelwe futhi iboniswe ukuthola umanyolo esingakusebenzisa epulazini. Ngaphezu kwalokho, kufanele siqhubeke nokuphendula ngaphansi kwezimo ezilawulwayo ngoba ukuphendula kusebenzisa i-sulfuric acid, okuyingozi ukuphatha. Ngakho-ke, ibanga elijwayelekile lomsoco lalo manyolo ngu-18-46-0. Lokhu kusho ukuthi, ine-nitrogen ne-phosphorous ngesilinganiso esingu-18: 46, kepha ayinalo potassium.

Imvamisa, sidinga cishe amathani ayi-1.5 kuye kwangama-2 amathanga we-phosphate, amathani angama-0,4 ama-sulfur (ama-s) ukuncibilikisa idwala, namathani angama-0,2 e-ammonia ekhiqizwa nge-DAP. Ngaphezu kwalokho, i-PH yale nto ingu-7.5 kuya ku-8.0. Ngakho-ke, uma sengeza lo manyolo enhlabathini, kungadala i-alkaline ph ezungeze amagreyithi womanyolo oncibilika emanzini enhlabathi; Ngakho-ke umsebenzisi kufanele agweme ukwengeza inani eliphakeme lalo manyolo.

Uyini Umanyolo we-NPK?

Umanyolo we-npk ungumanyolo wezingxenye ezintathu eziwusizo kakhulu ezinhlosweni zezolimo. Lo manyolo usebenza njengomthombo we-nitrogen, phosphorus ne-potassium. Ngakho-ke, kungumthombo obalulekile wazo zontathu izakhi zomzimba eziyinhloko isitshalo esikudingayo ukukhula kwayo, ukuthuthukiswa kanye nokusebenza okufanele. Igama lale nto liphinde liveze umsoco ongalunikeza.

Isilinganiso se-NPK yinhlanganisela yezinombolo ezinikeza isilinganiso phakathi kwe-nitrogen, phosphorous ne-potassium enikezwe ngumanyolo. Kuyinhlanganisela yezinombolo ezintathu, ezihlukaniswe yizinsuku ezimbili. Isibonelo, 10-10-10 kukhombisa ukuthi umanyolo uhlinzeka ngo-10% wezakhi ngakunye. Lapho, inombolo yokuqala ibhekisa kumaphesenti ama-nitrogen (n%), inombolo yesibili ingeyephesenti le-phosphoous (ngezindlela ze-P2O5%), kanti okwesithathu kwenziwa ngamaphesenti ama-potanganuum (K2O%).