Impact of pine leaf biochar amendment on bacterial dynamics and correlation of environmental factors during pig manure composting

Assessing the Performance and the Microbial Dynamics of Co-composting System Using Recycled Cow Manure and Bedding Material Waste 

“…During mesophilic phase, CM showed no obvious change of bacterial community, while a dramatic change was observed in CM + B possibly due to the fast elevation of temperature. Firmicutes was the most richness phyla in all these compost samples, which plays a major role in the degradation to lignocellulose similar to previous report (Li et al, 2019). Further observation of microbial community analysis at genus level showed the bacterial community structure in CM + B changed dramatically during co-composting process.…”

“…The total organic carbon (TOC) and total Kjeldahl nitrogen (TKN) were measured using the Kjeldahl method and the C/N ratio was calculated accordingly. The germination index (GI) was tested according to the methods in previous report (Alwaneen, 2016;Li et al, 2019).…”

Different Effects of Thermophilic Microbiological Inoculation With and Without Biochar on Physicochemical Characteristics and Bacterial Communities in Pig Manure Composting

“…It is worth noting that ammonia oxidation occurs during the maturation phase of composting because nitrifying bacteria have limited survival at temperatures above 40 • C (Wan et al, 2020). Other reports have not found that the increase in NO 3 − -N occurs at temperatures above 40 • C or mainly occurs in the cooling stage when applied with microbiological incubation (Li J. et al, 2019;Yu et al, 2020). In our study, the thermophilic…”

“…It is worth noting that ammonia oxidation occurs during the maturation phase of composting because nitrifying bacteria have limited survival at temperatures above 40°C ( Wan et al, 2020 ). Other reports have not found that the increase in NO 3 – -N occurs at temperatures above 40°C or mainly occurs in the cooling stage when applied with microbiological incubation ( Li J. et al, 2019 ; Yu et al, 2020 ). In our study, the thermophilic microbial incubation treatment showed stable conversion of NH 4 + -N to NO 3 – -N at temperatures above 40°C, indicating that microorganisms can be resistant to high temperatures and capable of nitrifying.…”

Role of biochar in promoting circular economy in the agriculture sector. Part 2: A review of the biochar roles in growing media, composting and as soil amendment

“…1). The use of biochar as an additive to composting has demonstrated to increase the abundance of bacterial communities colonizing the composting matrix either alone [37] or in combination with a bacterial consortium amendment [38]. These authors reported that the changes in compost microbiology have a crucial impact in the overall composting process by reducing the length of the process and also interacting on critical nutrient cycles that lead to an enhanced quality of the end product, in terms of organic matter humification and N conservation.…”