PUPUK KANDANG DIPERKAYA FOSFAT ALAM DALAM BENTUK GRANULAR DAN DIINOKULASI BIODEKOMPOSER UNTUK MENINGKATKAN NUTRISI JERAMI JAGUNG MANIS SEBAGAI HIJAUAN PAKAN LOKAL DI LAHAN KERING
Abstrak
Pupuk kandang diperkaya fosfat alam (FA) dan di inokulasi biodekomposer bermanfaat untuk memperbaiki kesuburan lahan kering. Tujuan penelitian untuk mengetahui pengaruh beberapa macam pupuk kandang diperkaya FA (pukan) dalam bentuk granular dan di inokulasi biodekomposer terhadap nutrisi jerami jagung manis sebagai hijauan pakan lokal untuk ruminansia. Penelitian lapang menggunakan rancangan acak lengkap dengan 7 perlakuan dan 4 ulangan pada tanah vertisol. Dosis unsur hara P (FA), N (urea), dan K (KCl) masing-masing 66 kg/ha, 200 kg/ha dan 125 kg K/ha. Dosis pukan 30 t/ha dan semua diperkaya FA. Perlakuan yang diberikan adalah T0 (pukan), T1 (pukan+EM4), T2 (pukan+starTmik), T3 (pukan+stardec), T4 (pukan granular+EM4), T5 (pukan granular+starTmik), T6 (pukan granular+stardec). Panen jagung manis pada umur 70 hari setelah tanam, dan jerami dipotong untuk mendapatkan data kadar protein kasar (PK), fosfor (P) dan kalsium (Ca). Hasil penelitian menunjukkan bahwa perlakuan yang diberikan nyata berpengaruh terhadap nutrisi jerami. Hasil uji DMRT menunjukkan bahwa beberapa macam pupuk kandang diperkaya FA (pukan) menghasilkan kadar PK, P dan Ca jerami jagung manis tidak nyata berbeda. Dapat disimpulkan bahwa pukan diperkaya FA dengan atau tanpa biodekomposer dalam bentuk granular atau non-granular mempunyai kemampuan yang sama dalam menghasilkan kadar PK, P dan Ca jerami jagung manis.
Kata kunci: biodekomposer, fosfor, jerami, pupuk kandang, Zea mays saccharata
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