PENGARUH LEVEL PEMBERIAN PUPUK ECO FARMING (EF) TERHADAP PERTUMBUHAN DAN PRODUKSI RUMPUT GAJAH (Pennisetum Purpureum Cv. Pakchong): Effect of Eco-Farming (EF) Fertilizer Levels on Growth and Production of Elephant Grass (Pennisetum Purpureum Cv. Pakchong). BNMT 2022, 16 (1).