OPTIMASI COATING PUPUK UREA PRILL DENGAN POLIURETAN SEBAGAI APLIKASI CRF (CONTROLLED RELEASE FERTILIZER)

Dwimaryam Suciati, Yuli Amitha Septiana

Abstract

Urea fertilizer in prill form is widely used for the food crop and industrial segments due to its high nitrogen content, easy solubility in water, and hygroscopic nature, making it suitable as a CRF (Controlled Release Fertilizer). CRF is a type of fertilizer that releases nutrients, specifically nitrogen, gradually and periodically, closely matching the absorption pattern of plants, ensuring that the nutrients are not washed away by water and are effectively utilized. In this study, CRF was made by coating urea with polyurethane using the pouring method. The optimum condition of the CRF was determined by testing the total nitrogen content using the Kjeldahl method and measuring the crushing strength. The optimum value was obtained with variable 2 (urea: coating agent at 98%: 2%) with a total nitrogen content of 45.5% and a crushing strength of 0.9 KgF.

Keywords

CRF, Crushing Strength, Total Nitrogen, Urea

Full Text:

PDF

References

Afandie dan Nasih. (2001). Ilmu Kesuburan Tanah. Kanisius.

Christians, Nick E. Aaron J Patton., dan Quincy D Law. (2004). Fertilization: Fundamental of Turfgrass Management. John Wiley & Sons.

Kaavessina, Mujtahid., Husnabilqis, Chitra & Hardiyanti, Meylani Tri. (2017). Smart-Uera-Controlled-Release-Nitrogen-Fertilizer Menggunakan Plastik Biodegradable Poli Asam Laktat Sebagai Carrier. Equilibrium, 16(2), 11-16.

Lingga dan Marsono. (1999). Petunjuk Penggunaan Pupuk. Penebar Swadaya.

Nainggolan, Ganda Darmono., Suwardi & Darmawan (2009). Pola Pelepasan Nitrogen Dari Pupuk Tersedia Lambat (Slow Release Fertilizer) Urea-Zeolit-Asam Humat. Jurnal Zeolit Indonesia, 8(2), 89-96.

Prakarsa, Nosafarma M., Sediawan, Wahyudi B & Fahrurrozi, Moh. (2017). Pelapisan pasa Pupuk Urea Menggunakan Campuran Minyak Jelantah dan Parafin dengan Metode Slow Release Fertilizer. Simposium Nasional RAPI XVI, 222-226

Salman, Muhammad & Suntari, Retno. (2023). Pemanfaatan Beberapa Bahan Pelapis Pada Urea Terhadap Nitrogen Tersedia dan Sifat Kimia di Vertisol Pasuruan. Jurnal Tanah dan Sumberdaya Lahan, 10(1), 49-56

Subandriyo, Moh Eko. (2014). Pembuatan Pupuk Urea Lepas Lambat dengan Proses Pelapisan Urea Asetaldehid dan Zeolit. (Tesis, Universitas Gadjah Mada). https://etd.repository.ugm.ac.id/penelitian/detail/74174

Suci, Ida Ayu & Astar, Ismail. (2022). Enkapsulasi Urea Menggunakan Biokomposit Zeolit Alam Alginat-Pati Sagu sebagai Model Pupuk Lepas Lambat (Slow Release Fertilizer). Al-Kimia, 10(1), 1-11.

Sutedjo, M.M. (2008). Pupuk dan Cara Pemupukan. Rineka Cipta.

DOI: http://dx.doi.org/10.52759/sainti.v21i1.255

Refbacks

  • There are currently no refbacks.