Study on Particle Size Promoting the Participation of Cotton Stalk Organic Matter in the Humification Process During Pig Manure Composting DOI Creative Commons

Weiguo Xu,

Yanfei Zhang, Meili Zhao

et al.

Agriculture, Journal Year: 2025, Volume and Issue: 15(5), P. 446 - 446

Published: Feb. 20, 2025

In order to study the effect of cotton stalk particle size on humification, stalks different lengths (5 cm, 10 15 cm) were co-composted with pig manure for 49 days. The results showed that cm treatment (T2) maintained a high-temperature stage 8 days, and total organic carbon decreased by 60.0%. T2 highest cellulose (57.0%) hemicellulose (77.1%) degradation rate, lowest lignin accumulation (69.8%), humus content (34.94 g/kg), which was 88.1% higher than in initial stage. FTIR analysis revealed significant changes functional groups. aromatic C=C stretching vibration (1650 cm−1) group increased 79.8%, showing better aromatization degree other two Two-dimensional spectroscopy phenolic alcohol hydroxyl groups first involved followed polysaccharides, hemicellulose, lignin, structures, enhanced this material transformation pathway. Microbial diversity identified seven main phyla, among Planctomycetota Acidobacteria abundance, closely related cellulose, compounds. Second, abundance characteristic species such as Planifilum fulgidum also certain advantages group. summary, optimized microbial activity matter effectively regulated composting humification process.

Language: Английский

Study on Particle Size Promoting the Participation of Cotton Stalk Organic Matter in the Humification Process During Pig Manure Composting DOI Creative Commons

Weiguo Xu,

Yanfei Zhang, Meili Zhao

et al.

Agriculture, Journal Year: 2025, Volume and Issue: 15(5), P. 446 - 446

Published: Feb. 20, 2025

In order to study the effect of cotton stalk particle size on humification, stalks different lengths (5 cm, 10 15 cm) were co-composted with pig manure for 49 days. The results showed that cm treatment (T2) maintained a high-temperature stage 8 days, and total organic carbon decreased by 60.0%. T2 highest cellulose (57.0%) hemicellulose (77.1%) degradation rate, lowest lignin accumulation (69.8%), humus content (34.94 g/kg), which was 88.1% higher than in initial stage. FTIR analysis revealed significant changes functional groups. aromatic C=C stretching vibration (1650 cm−1) group increased 79.8%, showing better aromatization degree other two Two-dimensional spectroscopy phenolic alcohol hydroxyl groups first involved followed polysaccharides, hemicellulose, lignin, structures, enhanced this material transformation pathway. Microbial diversity identified seven main phyla, among Planctomycetota Acidobacteria abundance, closely related cellulose, compounds. Second, abundance characteristic species such as Planifilum fulgidum also certain advantages group. summary, optimized microbial activity matter effectively regulated composting humification process.

Language: Английский

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