Dinamika Hara N Akibat Pemberian Kompos Campuran Residu Kedelai dan Jerami Padi Pada Tanaman Padi Gogo

Anis Sholihah, Agus Sugianto

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Penelitian ini bertujuan untuk mengetahui pengaruh pemberian kompos campuran residu kedelai dan jerami padi terhadap mineralisasi N, serapan N, dan efisiensi penggunaan N dengan indikator padi gogo. Rancangan yang digunakan adalah rancangan acak kelompok dengan lima perlakuan yaitu; D1 = kompos 100% residu kedelai; D2 = kompos 75% residu kedelai + 25% jerami padi; D3 = kompos 50% residu kedelai + 50% jerami padi; D4 = kompos 25% redisu kedelai + 75% jerami padi; D5 = kompos 100% jerami padi ditambah 2 perlakuan pembanding yaitu kontrol dan perlakuan NPK (D6). Hasil penelitian menunjukkan kompos campuran residu kedelai dan jerami padi memberikan dinamika mineralisasi N yang sama dimana mineral N kumulatif meningkat dengan meningkatnya residu kedelai dalam campuran selama masa inkubasi (1,2,4 dan 8 minggu). Perlakuan D1 (kompos 100% residu kedelai) menunjukkan kandungan mineral N tertinggi sebesar 1186,48 mg.pot-1. Serapan N, efisiensi penggunaan N dan hasil padi gogo tertinggi ditunjukkan pada perlakuan D4 masing-masing sebesar 380,79 mg pot-1, 41,49% dan 6,91 ton ha-1

Kata Kunci


jerami padi; mineralisasi N; padi gogo; residu kedelai; serapan N

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Referensi


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