Uji Kelarutan Si Tersedia pada Trass Bakar dan Non Bakar
Experiment of Silica Solubility Availabilityon Fuel and Non Fuel Trass
DOI:
https://doi.org/10.29244/jitl.21.1.13-15Kata Kunci:
CaCO3, pupuk, silika, trassAbstrak
Penelitian ini dilakukan untuk mempelajari kelarutan Si tersedia antara trass bakar dan non bakar dan penentuan formula terbaik untuk dijadikan sebagai pupuk silika. Penelitian ini dilakukan di Laboratorium Kimia dan Kesuburan Tanah, Departemen Ilmu Tanah dan Sumberdaya Lahan, Institut Pertanian Bogor. Rancangan Percobaan yang dilakukan adalah split plot dengan petak utama terdiri dari trass bakar dan non bakar, dan anak petak terdiri dari dosis trass yang dikombinasikan dengan CaCO3 yaitu 100% trass, 83.33% trass+16.67 CaCO3, 66.67.% trass +33.33% CaCO3, masing-masing perlakuan diulang sebanyak tiga kali, sehingga total satuan percobaan ada 18. Hasil penelitian menunjukkan bahwa trass bakar menunjukkan hasil kelarutan silika tersedia tertinggi dibandingkan trass non bakar. Kombinasi 83% trass+ 17% CaCO3 menunjukkan Si tersedia tertinggi yaitu 120.02 ppm, 72.67 ppm dan 53.43 ppm berturut-turut dengan pengekstrak ammonium asetat pH 4.8, 0.5 M HCl dan H2O.
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Referensi
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Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University
