Department of Botany, Rajiv Gandhi University, Rono Hills-79112, Doimukh, Arunachal Pradesh, India.
Department of Botany, Eastern Karbi Anglong College, Sarihajan-782480, Karbi Anglong, Assam, India.
Environ Sci Pollut Res Int. 2024 Aug;31(37):49891-49904. doi: 10.1007/s11356-024-34487-0. Epub 2024 Jul 31.
The present study investigates the synergistic impact of earthworms (Eisenia fetida and Eudrilus eugeniae) and microbes during vermicomposting of invasive weed phytomass (Xanthium strumarium and Lantana camara). This study aims introducing an onsite solution for weed control while producing valuable organic manure. Vermitransformation and detailed characterization of mono- (VC1, VC2, VC4, VC5) and polyculture (VC3, VC6) of X. strumarium and L. camara has been reported for the first time employing E. fetida and E. eugeniae. The study achieved 45.16 ± 2.48-76.73 ± 1.37% vermiconvertion rate. The pH, conductivity, and concentration of heavy metals are effectively stabilized. Furthermore, it observed a significant reduction in total organic carbon (TOC) alongside the augmentation of nitrogen, phosphorus, potassium, calcium, and other trace elements (Zn, Ni, Fe). The ash content, humification index, and C/N ratio analysis established the maturity of the vermicompost. The macronutrient enhancement in the vermicompost samples was recorded 1.5- to 2.47-fold for total N, 1.19- to 1.48-fold in available P, 1.1- to 1.2-fold in total K, and 1.1- to 1.18-fold in total Ca. The germination index reveals a significant reduction in phytotoxicity, suggesting the production of mature and suitable vermicompost for agricultural use. Evaluating mono- and polyculture techniques, the research highlights the superiority of E. fetida over E. eugeniae. Further, the earthworm population and biomass have significantly increased by the end of 60-day experimental trial.
本研究调查了蚯蚓（Eisenia fetida 和 Eudrilus eugeniae）和微生物在入侵杂草生物质（苍耳和马缨丹）堆肥过程中的协同影响。本研究旨在提供一种现场杂草控制解决方案，同时生产有价值的有机肥料。首次采用 E. fetida 和 E. eugeniae 报道了 X. strumarium 和 L. camara 的单（VC1、VC2、VC4、VC5）和混（VC3、VC6）培养物的 vermitransformation 及其详细特性。该研究实现了 45.16±2.48-76.73±1.37%的 vermiconvertion 率。pH 值、电导率和重金属浓度得到有效稳定。此外，还观察到总有机碳（TOC）显著减少，同时氮、磷、钾、钙和其他微量元素（Zn、Ni、Fe）增加。灰分含量、腐殖化指数和 C/N 比分析确立了堆肥的成熟度。堆肥样品中的宏量营养素增强率记录为总氮增加 1.5-2.47 倍，有效磷增加 1.19-1.48 倍，总钾增加 1.1-1.2 倍，总钙增加 1.1-1.18 倍。发芽指数表明植物毒性显著降低，表明生产出适合农业使用的成熟和合适的堆肥。在评估单培养和混培养技术时，该研究强调了 E. fetida 优于 E. eugeniae。此外，在 60 天实验试验结束时，蚯蚓种群和生物量显著增加。
