Application of liquid organic fertilizers from market waste on the growth and nitrogen uptake of oil palm seedlings

The purpose of this study was to determine the effect of various concentrations of liquid organic fertilizer from market waste on the growth and N uptake of oil palm leaves seedlings in pre-nursery. This experiment used a completely randomized design with ten replications. There were eight treatments namely 15%, 25%, 35%, 45%, 55%, 65%, chemical fertilizer (NPKMg and urea) as control and solid compost. The results showed that the application of liquid organic fertilizer at concentrations of 35% to 45% and solid compost gave the highest stem diameter and N uptake of oil palm leaves. The application of liquid organic fertilizer from a concentration of 25% to 45% and solid compost gives the highest dry weight and leaves of oil palm seedlings. Application of liquid organic fertilizer with a concentration of 45% to 65%, solid compost, or chemical fertilizer produces the highest amount of chlorophyll.