Di Huihui, Wang Rui, Ren Xiaohong, Deng Jianqiang, Deng Xiaohua, Bu Guijun
College of Agronomy, Hunan Agricultural University, Changsha, 410128, China.
Enshi Tobacco Company of Hubei Province Corporation, Enshi, 445000, China.
Environ Sci Pollut Res Int. 2022 Feb;29(6):8191-8204. doi: 10.1007/s11356-021-16189-z. Epub 2021 Sep 5.
A large amount of fresh tobacco waste with high water content are produced in farmland, and it may cause environmental pollution if it is not properly treated. The fresh tobacco waste is not easily collected and transported, resulting in its centralized treatment is expensive. This study is to clarify whether it is feasible to treat fresh tobacco wastes by co-composting of them and soil in farmland and applied the obtained compost product into the soil instead of a part of tobacco-specific fertilizer. The results showed that, compared with that in original soil, the relative abundance of Pseudomonas, Azotobacter, and Coprinus of the co-composted products increased by roughly 244%, 323%, and 675%, respectively, and effective nitrogen and available potassium increased by roughly 157% and 132%, respectively. In addition, the nicotine content in co-composted products decreased dramatically compared with the discarded tobacco leaves. The application of the co-composted products and 20% fertilizer amount (15 g/plant) (YD5) exhibited the highest relative abundance of beneficial microbial communities in the soil and the best growth of tobacco plants. The co-composting of fresh tobacco waste and soil in farmland is an effective measure to treat the fresh tobacco waste, and its products increased beneficial microorganisms and stimulate the growth of tobacco plants by replacing an amount of the fertilizer.
农田中会产生大量含水量高的新鲜烟草废弃物，如果处理不当可能会造成环境污染。新鲜烟草废弃物不易收集和运输，导致其集中处理成本高昂。本研究旨在阐明将新鲜烟草废弃物与农田土壤进行共堆肥处理，并将得到的堆肥产品施入土壤以替代部分烟草专用肥料是否可行。结果表明，与原始土壤相比，共堆肥产品中假单胞菌属、固氮菌属和鬼伞属的相对丰度分别增加了约244%、323%和675%，有效氮和速效钾分别增加了约157%和132%。此外，与废弃烟叶相比，共堆肥产品中的尼古丁含量大幅降低。共堆肥产品与20%施肥量（15克/株）（YD5）的处理在土壤中有益微生物群落的相对丰度最高，烟草植株生长最好。农田中新鲜烟草废弃物与土壤的共堆肥是处理新鲜烟草废弃物的有效措施，其产品通过替代一定量的肥料增加了有益微生物并促进了烟草植株的生长。
