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Vermicomposting of harvested waste biomass of potato crop employing Eisenia fetida : changes in nutrient profile and assessment of the maturity of the end products
Environmental Science and Pollution Research Pub Date : 2021-03-06 , DOI: 10.1007/s11356-021-13214-z
Dimbeswar Das 1 , Hemen Deka 1
Affiliation  

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.



中文翻译:

利用埃塞尼亚fetida对马铃薯作物收获的废物生物量进行com堆肥:养分状况的变化和最终产品的成熟度评估

利用埃塞尼亚fetida研究了收获时产生的马铃薯作物废弃物生物量的ver堆肥潜力。。实验是在花盆中进行的,在研究过程中进行了两种处理。在第一种处理中,仅以马铃薯植物生物量(PPB)为原料;而在第二种处理中,PPB与牛粪的混合比例为5:1。ver杂的材料显示出C / N比降低,腐殖化指数降低,养分分布增强,灰分含量,固氮,磷酸盐和增溶钾细菌种群。Vermicompost样品中的总养分含量为N的3.8-4.4倍,有效P的5-5.6倍,K的1.6倍,Ca的5.2-6.2倍和Mg的1.6倍内容。在ver堆样品中,C / N的降低幅度在92.5–94.4%之间。与原始原料和堆肥样品相比,扫描电子显微镜(SEM)图像显示ver杂产品中的崩解性更高。到60天的试验结束时,牛粪的加入不仅显着提高了population种群和生物量,而且显着提高了com杂最终产品的质量和数量。

更新日期:2021-03-07
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