Coix lacryma-jobi L. Nutritional Value Concerning Nitrogen Fertilizer Doses

Coix lacryma-jobi L., as animal feed is considered a cereal plant from the Poaceae or Gramineae family. We aimed to determine the influence of different doses of Nitrogen (N) fertilizer on Coix lacryma-jobi L. It was conducted in the Lempake Village area; and the Chemical and biochemical laboratory of agricultural products and animal husbandry nutrition laboratory at Mulawarman University from March to September 2021. Data were collected using a randomized block design and five treatments as follows T₀ = control, T₁= 150 kg/ha, T₂= 300 kg/ha, T₃= 450 kg/ha, and T₄= 600 kg/ha with four replications. The results showed a significant effect on Dry Weight (DW) and Moisture Contents (MC) of Coix lacryma-jobi L., with no significant (p<0.01) effect on Dry Matter (DM) and Crude Fiber (CF). The application of different doses of N fertilizer led to a high Crude Protein (CP) and ash contents but failed to affect the crude fat and Nitrogen Free Extract (NFE). The best nutrient contents were observed at 600 kg/ha, with CF, CP, Ether Extract (EE), ash, and NFE at 24.34, 8.50, 1.49, 11.63, and 54.04%, respectively.