Penentuan Kadar Nitrogen, Fosfor dan Kalium Pada Pupuk NPK

PENENTUAN KADAR NITROGEN, FOSFOR
DAN KALIUM PADA PUPUK NPK

ABSTRAK

Penentuan Kadar Nitrogen, Fosfor dan Kalium telah dilakukan pada Pupuk NPK. Metode
yang dilakukan pada penentuan kadar nitrogen adalah metode titrimetri, pada penentuan
kadar fosfor adalah dengan metode spektrofotometri, sedangkan pada penentuan kadar
kalium adalah dengan menggunakan metode AAS. Dari hasil analisa didapati kadar nitrogen,
fosfor dan kalium yaitu sebesar 11,45%, 6,20% dan 9,92%. Dari hasil analisa menunjukkan
bahwa kadar nitrogen,fosfor dan kalium sesuai dengan SNI (Standar Nasional Indonesia).

Kata kunci : Nitrogen, Fosfor, Kalium, Pupuk

Universitas Sumatera Utara

DETERMINATION OF NITROGEN, PHOSPHOR
AND POTENTIAL IN NPK FERTILIZERS

ABSTRACT

Determination of Nitrogen Level, Phosphor and Potassium has been done of NPK Fertilizer.
The method performed on the determination of nitrogen content was titrimetric method,
determination levels of phosphorus was by spectrophotometric method, while the
determination of potassium levels was by using AAS method. From the analysis results
obtained that Nitrogen, Phosphor and Pottassium level in NPK fertilizers were 11,45%,
6,20% and 9,92%, respectively. The obtained results show that level of nitrogen, phosphor
and potassium were same as SNI (Indonesia National Standar)

Keywords: Nitrogen, Phosphor, Potassium, Fertilizer

Universitas Sumatera Utara