Mineral Soils and Peat Soils Affect the Sugar levels, Nitrogen, Phosphorus, and Potassium concentration in Metroxylon sagu

The analysis of sugar and nutrient concentrations in sago palm growing in peat soil and mineral soil with soil pH (H 2 O) 3.7 and 5, respectively, were conducted in this study. Sugar concentrations such as glucose, sucrose, starch, and non-structural carbohydrate (NSC) were observed in the sago palms’ log, petioles and roots. Nutrient concentration such as nitrogen, phosphorus, and potassium were observed in the trunk of the sago palms. This study found that the sugar levels of the sago palms grown in mineral soil were higher than those grown in peat soil. The trend of the data shows that, the sago palms grown in mineral soil tend to have higher starch concentration in the lower part and upper parts of the trunk, while in peat soils, the higher starch level was found in the middle parts of the trunk. In the peat soil, sago palm showed lower nitrogen and phosphorus levels compared to the sago palm grown in mineral soils.