【摘要】 为探究沼肥在水芹种植中的合理施用依据，采用田间小区试验，研究了沼肥不同施用比例（25%、50%、100%）替代化肥对水芹产量、品质及重金属含量的影响，并以单施化肥处理为对照组。结果表明：沼肥能有效提高水芹产量，其中25%沼肥组水芹产量最高（8.41 kg/m~2），较化肥组增产10.85%，株高以50%沼肥组最高（66.25 cm）；在品质方面，沼肥组水芹中蛋白质、总黄酮、可溶性糖、可溶性蛋白含量均高于化肥组，其中25%沼肥组含量最高，且膳食纤维含量下降，口感得到改善；各沼肥组水芹中6种重金属含量均未超过国家蔬菜标准规定的限量值，说明在本试验周期内施用沼肥未导致水芹受到重金属污染。综合产量和品质分析，在水芹种植中，25%沼肥施用量为最佳选择，既能提高产量，又能改善品质，且具有食用安全性。更多还原

【Abstract】 To explored the rational application of biogas fertilizer in the cultivation of Oenanthe javanica, a field plot experiment was conducted to study the effects of different application ratios(25%, 50%, 100%) of biogas fertilizer instead of chemical fertilizer on the yield, quality, and heavy metal content of Oenanthe javanica, with a chemical fertilizer-only treatment as the control group.The results demonstrated that biogas fertilizer could effectively increase the yield of Oenanthe javanica, the 25% biogas fertilizer group showed the highest yield of Oenanthe javanica(8.41 kg/m~2), which was 10.85% higher than the chemical fertilizer group, and the plant height was highest in the 50% biogas fertilizer group(66.25 cm). In terms of quality, the protein, total flavonoids, soluble sugars, and soluble protein content of Oenanthe javanica in the biogas fertilizer group were higher than those in the chemical fertilizer group. Among them, the 25% biogas fertilizer group had the highest content, and the dietary fiber content decreased, resulted in improved taste. The content of six heavy metals in Oenanthe javanica from all biogas fertilizer groups did not exceed the limit values specified in the national vegetable standards, indicated that the application of biogas fertilizer did not cause heavy metal pollution to Oenanthe javanica during this experimental period. Comprehensive analysis of yield and quality indicated that a 25% biogas fertilizer substitution rate constituted the optimal choice for Oenanthe javanica cultivation, achieving simultaneous yield enhancement, quality improvement, and food safety assurance.更多还原