SINTESIS PUPUK LEPAS LAMBAT BERBASIS KITOSAN-BIOCHAR-UREA SEBAGAI MATERIAL POTENSIAL PELEPASAN NITROGEN

Martasiana Karbeka, Zakarias Adrianto Mautuka, Diana Oktovina Tung Lily

Abstract


The fabrication of slow-release urea fertilizer beads using chitosan and chitosan-biochar as coating materials has been accomplished. The beads were synthesized by solidifying chitosan-urea and chitosan-biochar-urea hydrogels in a NaOH solution. Characterization of the chitosan-urea composite beads (BKU) and chitosan-biochar-urea beads (BKBU) was conducted through Fourier-transform infrared (FTIR) spectroscopy, along with water intake (swelling) and nitrogen release tests in aqueous media at time intervals of 24, 72, 120, and 168 hours. The FTIR spectra of BKU and BKBU beads displayed functional group peaks associated with biochar (hydroxyl and carboxylate), chitosan (amine and hydroxyl), and urea (amine and carbonyl), along with others supporting group. Water intake rates were 72% for BKU and 81% for BKBU, which impacted nitrogen release patterns. BKU exhibited a faster nitrogen release compared to BKBU, indicating that BKBU is more suitable for use as a slow-release fertilizer due to its more gradual nitrogen release mechanism


Keywords


Chitosan, Biochar, Urea, Slow-release Fertilizer

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References


Amin, A., Khairi, N., & Allo, E. (2019). Sintesis dan karakterisai kitosan dari limbah cangkang udang sebagai stabilizer terhadap Ag nanopartikel. Fullerene Journal of Chemistry, 4(2), 86.

Arif Novan, & Maharani, D. K. (2017). Kajian Daya Serap Air ( Swelling ) Pupuk Urea Slow Release Fertilizer ( Srf ) Menggunakan Matriks Kitosan-Zeolit Swelling Studying Of Urea Slow Release Fertilizer ( Srf ) Using Chitosan-Zeolite Matrix. UNESA Journal of Chemistry, 6(2), 91–93.

Hartatik, W., Mardliyati, E., Wibowo, H., Sukarto, A., & Yusron, Y. (2020). Formulasi dan Pola Kelarutan N Pupuk Urea-Zeolit Lepas Lambat. Jurnal Tanah Dan Iklim, 44(1), 61–70.

Herianus, M., Loth, B., & Zakarias A, M. (2024). Membranes with Chitosan-Chitosan/Phthalate Matrix and Montmorillonite-Carbon Nanotubes Filler for DMFC Applications. Indonesia Chimica Acta, 17(1), 37–46.

Herlambang, S., Yudhiantoro, D., Gomareuzzaman, M., & ... (2022). Biochar Inovasi Zero-Waste Organik. Lembaga Penelitian dan Pengabdian kepada Masyarakat UPN Veteran Yogyakarta.

Jayanudin, J., & Lestari, R. S. D. (2020). Enkapsulasi dan Karakterisasi Pelepasan Terkendali Pupuk NPK Menggunakan Kitosan Yang Ditaut Silang Dengan Glutaraldehida. ALCHEMY Jurnal Penelitian Kimia, 16(1), 110.

Karbeka, M., & Lanula, L. Pengaruh Penggunaan Biochar Sekam Padi Dan Bokashi Sebagai Pembenah Sifat Kimia Tanah. Seminar Nasional Kimia Dan Pendidikan Kimia I, 28–34.

Kuczuk, A. (2019). Nitrogen leaching from soils in the aspect of its balance. Journal of Research and Applications in Agricultural Engineering, 64(3), 39–50.

Lestari, S., Yuningsih, L. M., & Muharam, S. (2022). Hidrogel Superabsorben Berbasis Natrium Alginat-Bentonit sebagai Pelapis Pupuk Lepas Lambat. Jurnal Riset Kimia, 13(1), 58–67.

Mangallo, B., Raturoma, R. K. M., & Langsa, M. H. (2022). Komposit Kitosan-Silika Abu Sekam Padi Sebagai Pupuk Lepas lambat Fe2+ dan Mn2+. Jurnal Natural, 17(2), 97–103.

Mashuni, M., Ritonga, H., Jahiding, M., & Hamid, F. H. (2022). Sintesis Kitosan dari Kulit Udang sebagai Bahan Membran Elektrode Au/Kitosan/GTA/AChE untuk Deteksi Pestisida. ALCHEMY Jurnal Penelitian Kimia, 18(1), 112–121.

Sholeha, N. A., Wiraguna, E., Urip, T., Sujarnoko, P., & Budiono, D. (2024). Fabrication and Effectiveness of Composite Materials in Urea Slow-Release Fertilizers : A Mini-Review. Biointerface Research in Applied Chemistry, 14(5), 1–20.

Susanti, R., Rugayah, R., Widagdo, S., & Pangaribuan, D. H. (2021). Pengaruh Dosis Pupuk Urea Terhadap Pertumbuhan Dan Hasil Tanaman Kailan (Brassica oleracea var. alboglabra ). Jurnal Agrotek Tropika, 9(1), 137.

Susilowati, E., Mahatmanti, F. W., & Haryani, S. (2018). Sintesis Kitosan-Silika Bead sebagai Pengadsorpsi Ion Logam Pb ( II ) pada Limbah Cair Batik. Indonesian Journal of Chemical Science, 7(2), 1–9.

Zakarias Mautuka, Astriana Maifa, M. K. (2022). Pemanfaatan Biochar Tongkol Jagung Guna Perbaikan Sifat Kimia Tanah Lahan Kering. Jurnal Ilmiah Wahana Pendidikan, 8(3), 178–183.




DOI: http://dx.doi.org/10.22373/lj.v12i2.26190

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