This research aimed to study the effects of different types and rates of organic fertilizer on biomass yield, bioactive compounds, and heavy metals content of Phyllanthus niruri. Two types of organic fertilizers (animal-based and plant-based) with five different rates (0, 100, 200, 300, and 400 kg N ha⁻¹) were used in this study. There was an interaction between fertilizer types and rates on biomass yield, heavy metals content, and bioactive compounds. Plants are grown with 400 kg N ha⁻¹ of animal-based fertilizer, and plant-based fertilizer produced the highest fresh biomass. However, phyllanthin and hypophyllanthin concentrations of P. niruri were not affected by applying animal-based and plant-based fertilizers at all rates. In addition, Cd and Pb concentrations also decreased with the increasing rate of organic fertilizer and were below the Malaysia Permissible Levels (MPLs). Therefore, animal-based fertilizer at 400 kg N ha⁻¹ was selected as the optimum rate due to its reduced heavy metal concentration in plants and higher phyllanthin and hypophyllanthin yield.

本研究旨在研究不同类型和施用量的有机肥对珍珠白菜生物质产量、生物活性化合物和重金属含量的影响。本研究中使用了两种类型的有机肥料（基于动物和基于植物），具有五种不同的比率（0、100、200、300 和 400 kg N ha ^-1）。肥料类型和比例对生物质产量、重金属含量和生物活性化合物之间存在相互作用。植物用 400 kg N ha ^-1的动物性肥料生长，植物性肥料产生最高的新鲜生物量。然而，P. niruri 的叶黄素和下叶黄素浓度以任何比例施用动物性和植物性肥料均未受到影响。此外，Cd 和 Pb 的浓度也随着有机肥用量的增加而下降，并低于马来西亚允许水平（MPLs）。因此，选择400 kg N ha ^{-1 的}动物性肥料作为最佳施肥量，因为其降低了植物中的重金属浓度，并提高了叶黄素和下叶黄素产量。