Responses of soil nutrients and microbial activity to the mill-mud application in a compaction-affected sugarcane field

Liu, Xiangyu; Milla, Rob; Granshaw, Terry; Zwieten, Lukas Van; Rashti, Mehran Rezaei; Esfandbod, Mohsen; Chen, Chengrong; Basiliko, Nathan

doi:10.1071/sr21162

Cited by 6 publications

(3 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The majority of research on organic amendment application has focused on its use in agriculture, as it is the most common application for such amendments (Rezaei Rashti et al 2016;Liu et al 2022). Studies conducted within agricultural contexts have consistently identified the agricultural benefits of utilising organic amendments.…”

Section: Introductionmentioning

confidence: 99%

Organic amendments improved soil properties and native plants’ performance in an Australian degraded land

Larsen,

Rezaei Rashti,

Esfandbod

et al. 2024

Soil Res.

Self Cite

View full text Add to dashboard Cite

Context Land degradation poses a substantial threat to both the sustainable environment and human health. Efforts towards rehabilitation and remediation often require addition of soil amendments and careful selection of plant species. Aims We assessed the effect of recycled organic amendments on improvement of soil physicochemical properties and performance of native plant species in an Australian degraded soil. Methods A glasshouse pot experiment investigated the effects of compost (CO), biochar (BC), and compost-biochar (COBC) mixture on performance of three native Australian plant species (Eucalyptus tereticornis (EU), Acacia leiocalyx (AC), and Banksia integrifolia (BA)) in a degraded soil. Key results Application of CO, BC, and COBC organic amendments increased soil dissolved organic carbon and microbial biomass carbon contents compared to the control treatment. COBC amendment increased nutrient retention and reduced CO2 emissions compared to CO amendment. BC amendment also resulted in low CO2 emissions similar to the control treatment, where no significant differences were observed. AC outperformed the EU and BA species in biomass production due to its leguminous nature, with amendment application had an insignificant effect on AC performance. Within the EU treatments, the COBC:EU demonstrated the highest biomass production, followed by CO:EU, BC:EU, and CK:EU, respectively. Conclusion All amendments exhibited overall improvements in soil and plant parameters, with more significant outcomes observed with COBC application. However, the observed improvements from biochar application were minimal in this short-term experiment, which may not have allowed for the manifestation of long-term benefits. Implications Further research is warranted to investigate the effects of compost and biochar amendments on diverse soil types and native plant species.

show abstract

Section: Introductionmentioning

confidence: 99%

Organic amendments improved soil properties and native plants’ performance in an Australian degraded land

Larsen,

Rezaei Rashti,

Esfandbod

et al. 2024

Soil Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The following literature survey identified a missing linkage between the efficacy of mill mud and the role of its microbial community. Similarly to other organic amendments, mill mud can alter the master variables of soil chemistry (e.g., pH and dissolved organic carbon composition) [ 11 ] as well as soil compaction [ 12 ] and aggregate stability [ 13 ]. Those changes in soil physicochemical properties impact the microbial activity including the carbon use efficiency [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Sugarcane mill mud-induced putative host (soybean (Glycine max))-rhizobia symbiosis in sandy loam soil

Uchimiya,

DeRito,

Hay

2023

PLoS ONE

View full text Add to dashboard Cite

Domestic production of controlled-release, compost-based, and microbe-enhanced fertilizers is being expanded in the U.S. as a part of rural development. Sugarcane mill mud is a sterilized (≈90°C) agricultural byproduct in surplus that has received interests as a soil amendment in several Southern states, because of its high phosphorus and organic carbon contents. Addition of mill mud to sandy loam significantly increased the nodule formation compared to fertilized and unfertilized controls. Mill mud addition also resulted in pod yields similar to the fertilized control. Though not found in mill mud itself, mill mud additions correlated with an increase in soil Rhizobia as determined by deep 16S rRNA gene sequencing. We hypothesize that Firmicutes in sterilized mill mud induced Rhizobia that in turn enhanced soybean (Glycine max) growth. Collectively, mill mud enhanced the plant growth promoting bacteria when applied to a silt loam, although the relative influence of mill mud-derived bacteria, organic carbon, and nutrients is yet to be determined.

show abstract

“…A few recent studies emerged to investigate mill mud’s effects on microbial carbon use efficiency [ 11 ], soil compaction [ 12 ], and aggregate stability [ 13 ]. However, environmental fate of mill mud’s native microbial community and its driver are largely unknown.…”

Section: Introductionmentioning

confidence: 99%

Chemical and microbial characterization of sugarcane mill mud for soil applications

Uchimiya

LeBlanc²

2022

PLoS ONE

View full text Add to dashboard Cite

Sugarcane mill mud/filter cake is an activated sludge-like byproduct from the clarifier of a raw sugar production factory, where cane juice is heated to ≈90°C for 1–2 hr, after the removal of bagasse. Mill mud is enriched with organic carbon, nitrogen, and nutrient minerals; no prior report utilized 16S rRNA gene sequencing to characterize the microbial composition. Mill mud could be applied to agricultural fields as biofertilizer to replace or supplement chemical fertilizers, and as bio-stimulant to replenish microorganisms and organic carbon depleted by erosion and post-harvest field burning. However, mill mud has historically caused waste management challenges in the United States. This study reports on the chemical and microbial (16S rRNA) characteristics for mill muds of diverse origin and ages. Chemical signature (high phosphorus) distinguished mill mud from bagasse (high carbon to nitrogen (C/N) ratio) and soil (high pH) samples of diverse geographical/environmental origins. Bacterial alpha diversity of all sample types (mill mud, bagasse, and soil) was inversely correlated with C/N. Firmicutes dominated the microbial composition of fresh byproducts (mill mud and bagasse) as-produced within the operating factory. Upon aging and environmental exposure, the microbial community of the byproducts diversified to resemble that of soils, and became dominated by varying proportions of other phyla such as Acidobacteria, Chloroflexi, and Planctomyces. In summary, chemical properties allowed grouping of sample types (mill mud, bagasse, and soil-like), and microbial diversity analyses visualized aging caused by outdoor exposures including soil amendment and composting. Results suggest that a transient turnover of microbiome by amendments shifts towards more resilient population governed by the chemistry of bulk soil.

show abstract

Responses of soil nutrients and microbial activity to the mill-mud application in a compaction-affected sugarcane field

Cited by 6 publications

References 66 publications

Organic amendments improved soil properties and native plants’ performance in an Australian degraded land

Organic amendments improved soil properties and native plants’ performance in an Australian degraded land

Sugarcane mill mud-induced putative host (soybean (Glycine max))-rhizobia symbiosis in sandy loam soil

Chemical and microbial characterization of sugarcane mill mud for soil applications

Contact Info

Product

Resources

About