Amino acids hydrolyzed from animal carcasses are a good additive for the production of bio-organic fertilizer

Frontiers in Microbiology

Ruifu Zhang¹  Rong Li²  Dandan Chen²  Qirong Shen²  Hongjun Liu²  Xinnan Hang² 

[1] Chinese Academy of Agricultural Sciences;Nanjing Agricultural University;

关键词: microbial community;    plant growth-promoting rhizobacteria;    solid-state fermentation;    Bio-organic fertilizer;    compound liquid amino acids;    illumine-MiSeq sequencing;   

DOI  :  10.3389/fmicb.2016.01290

来源: DOAJ

【 摘 要 】

High-quality bio-organic fertilizers (BIOs) cannot be produced without the addition of some proteins. In this study, compound liquid amino acids (CLAA) from animal carcasses were utilized as additives into matured composts to create novel BIOs containing plant growth-promoting rhizobacteria (PGPR). The results showed that adding CLAA and inoculating bacteria meanwhile resulted in failed solid-state fermentation (SSF) due to the higher H+ contents. While after pre-compost for 4 days before PGPR inoculation, treatments of matured chicken or pig manure added with 0.2 ml g-1 of CLAA resulted in a maximum biomass of functional strains. Illumine-MiSeq sequencing and Real-Time PCR results showed that the CLAA addition decreased the bacterial abundance and richness, altered the bacterial community structure and changed the relative abundance of some microbial groups. This study offers a high value-added utilization of waste protein resources for producing economical, high-quality BIO.

【 授权许可】

Unknown