APLIKASI KOMPOS (JERAMI+TITHONIA) DAN BIOCHAR DENGAN MENGGUNAKAN KOMBINASI YANG BERBEDA DALAM UPAYA PENINGKATAN SIFAT KIMIA TANAH PADA LAHAN SAWAH DENGAN METODE SRI (SYSTEM OF RICE INTENSIFICATION) DI KOTA PADANG

Erick Yuhardi, Gusnidar Gusnidar, Syafrimen Yasin

Abstract


Penelitian Aplikasi Kompos (Jerami + Tithonia) Dan Biochar Dengan Menggunakan Kombinasi Yang Berbeda Dalam Upaya Peningkatan Sifat Kimia Tanah Pada Lahan Sawah Dengan Metode SRI (System Of Rice Intensification) dilaksanakan pada bulan November 2019 - Februari 2020 di Kecamatan Kuranji, Kota Padang, Sumatera Barat dan di lanjutkan di Laboratorium Jurusan Ilmu Tanah, Universitas Andalas. Tujuannya adalah mengkaji pengaruh aplikasi kompos (jerami + tithonia) dan biochar terhadap sifat kimia tanah pada lahan sawah dengan metode SRI. Penelitian ini menggunakan rancangan acak kelompok (RAK) yang terdiri dari 6 perlakuan dan 3 ulangan. A= kontrol, B= 100%K (kompos), C= 75%K + 25%B (biochar), D= 50%K + 50%B, E= 25%K + 75%B, F= 100%B. Data analisis tanah diuji dengan kriteria penilaian ciri kimia tanah. Hasil penelitian menunjukkan terjadi peningkatan nilai pada perlakuan 25%K (setara 1,87 ton ha-1) + 75%B (5,62 ton ha-1) seperti pH 1,33 (unit), Eh 17,4 (mV), N-total 0,49 (%), C-organik 0,78 (%), P-tersedia 14,75 (%), KTK 19,83 (cmol kg-1), Ca-dd 0,48 (cmol kg-1), Mg-dd 0,45 (cmol kg-1), Na-dd 0,44 (cmol kg-1) dan K-dd 0,27 (cmol kg-1) dibandingkan dengan kontrol. Perlakuan terbaik adalah kompos 25% + biochar 75% dalam meningkatkan sifat kimia tanah sawah kecuali C-organik dan Ca-dd.


Keywords


Biochar, Kompos, Sifat Kimia Tanah, SRI

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DOI: http://dx.doi.org/10.31604/jap.v5i2.2081

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Jurnal AGROHITA
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