Ore improver additions alter livestock manure compost ecosystem C:N:P stoichiometry.
Environ Res
; 244: 117904, 2024 Mar 01.
Article
en En
| MEDLINE
| ID: mdl-38092239
ABSTRACT
Deciphering the pivotal components of nutrient metabolism in compost is of paramount importance. To this end, ecoenzymatic stoichiometry, enzyme vector modeling, and statistical analysis were employed to explore the impact of exogenous ore improver on nutrient changes throughout the livestock composting process. The total phosphorus increased from 12.86 to 18.72 g kg-1, accompanied by a marked neutralized pH with ore improver, resulting in the Carbon-, nitrogen-, and phosphorus-related enzyme activities decreases. However, the potential CP and NP acquisition activities represented by ln(ßG + CB) ln(ALP) and ln(NAG) ln(ALP), were increased with ore improver addition. Based on the ecoenzymatic stoiometry theory, these changes reflect a decreasing trend in the relative P/N limitation, with pH and total phosphorus as the decisive factors. Our study showed that the practical employment of eco stoichiometry could benefit the manure composting process. Moreover, we should also consider the ecological effects from pH for the waste material utilization in sustainable agriculture.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Compostaje
/
Ecosistema
Límite:
Animals
Idioma:
En
Revista:
Environ Res
Año:
2024
Tipo del documento:
Article