Ecology and Environmental Remediation Laboratory, Department of Botany, Gauhati University, Guwahati-14, Assam, India.
Environ Sci Pollut Res Int. 2021 Jul;28(27):35717-35727. doi: 10.1007/s11356-021-13214-z. Epub 2021 Mar 6.
The vermicomposting potential of waste biomass of potato crops that are generated at the time of harvesting was studied employing Eisenia fetida. The experiment was carried out in pots, and two treatments were applied during the study. In the first treatment, only potato plant biomass (PPB) was taken as the raw materials; whereas in the second treatment, a mixture of PPB with cow dung was engaged in the proportion of 5:1. The vermicomposted materials showed a reduction in C/N ratio, humification index, enhancement in nutrients profiles, ash contents, nitrogen-fixing, phosphate, and potassium solubilizing bacterial population. The macronutrient enhancement in the vermicompost samples was recorded 3.8-4.4-fold for total N, 5-5.6-fold in available P, 1.6-fold in total K, 5.2-6.2-fold in total Ca, and 1.6-fold in total Mg contents. The reduction in C/N was found in the range of 92.5-94.4% in the vermicompost samples. The scanning electron microscope (SEM) images showed higher disintegration in the vermicompost products when compared with initial raw material and compost samples. The addition of cow dung significantly enhanced the quality and quantity of vermicompost final products besides positively affecting the earthworm population and biomass by the end of 60 days of experimental trials.
采用赤子爱胜蚓研究了马铃薯收获时产生的作物废弃物生物质的堆肥潜力。该实验在盆中进行，并在研究期间应用了两种处理方法。在第一种处理中，仅使用马铃薯植物生物质（PPB）作为原料；而在第二种处理中，将 PPB 与牛粪以 5:1 的比例混合使用。堆肥后的材料显示出 C/N 比、腐殖化指数、养分状况、灰分含量、固氮、磷和钾溶磷细菌种群的降低。在堆肥样品中，总氮的增加幅度为 3.8-4.4 倍，有效磷增加 5-5.6 倍，总钾增加 1.6 倍，总钙增加 5.2-6.2 倍，总镁增加 1.6 倍。堆肥样品中的 C/N 降低范围为 92.5-94.4%。扫描电子显微镜（SEM）图像显示，与初始原料和堆肥样品相比，堆肥产品的分解程度更高。牛粪的添加不仅在 60 天的实验试验结束时对蚯蚓种群和生物量产生积极影响，而且还显著提高了堆肥最终产品的质量和数量。
