Biosolids amendments improve an anthropogenically disturbed urban turfgrass system

Badzmierowski, Mike J.; Evanylo, Gregory K.; Ervin, Erik H.

doi:10.1002/csc2.20151

Cited by 5 publications

(3 citation statements)

References 54 publications

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“…For example, biosolids led to lower bulk density and porosity at the top depth compared with nitrogen fertilizer after the second‐year soybean cultivation. This aligns with previous findings that organic amendments tend to reduce bulk density and increase porosity (Badzmierowski et al., 2020; Sloan et al., 2016). However, after the first‐year maize cultivation, biosolids affected the water‐stable aggregates at the top depth, while digestate influenced those at the lower depth compared with nitrogen fertilizer.…”

Section: Discussionsupporting

confidence: 93%

Biobased residues sustain crop productivity and soil health in a maize–soybean rotation

Badewa,

Yeung,

Whalen

et al. 2023

Soil Use and Management

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Biobased residues are local and cost‐effective sources of soil amendments, that can efficiently provide nutrients to crops, enhance soil health, and serve as alternatives to mineral fertilizers. The objective of our study was to comprehensively evaluate soil health and crop productivity of temperate agroecosystems amended with different types of organic residues (biobased residues), including composted food waste (compost), biosolid slurry (biosolids) and liquid anaerobic digestate (digestate), compared to nitrogen fertilizer. The experiment was conducted on a silt loam soil under maize‐soybean rotation in Canada where a wide range of physical, chemical, and biological indicators were measured and integrated into a soil health score. Biobased residues resulted in about 50 to 60% increase in soil‐exchangeable potassium, and 10% soil‐exchangeable sodium over levels found in nitrogen fertilizer. Soil microbial biomass and the capacity of soil microbes to utilize carbon substrates differed among growing seasons but not among amendment types (p>0.05). Crop productivity was similar among amendment types (p>0.05). We found that the soil health score of biosolids was positively correlated with shoot and root biomass and negatively correlated with shoot nitrogen (p<0.05), while that of nitrogen fertilizer was positively correlated with shoot carbon (p<0.05). This was likely due to a variation in the availability of labile carbon and nitrogen among amendment types. Our research also suggests that temperate silt loam soil amended with biobased residues, especially biosolids, supplied sufficient nitrogen without the need for additional nitrogen fertilizer.

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Section: Discussionsupporting

confidence: 93%

Biobased residues sustain crop productivity and soil health in a maize–soybean rotation

Badewa,

Yeung,

Whalen

et al. 2023

Soil Use and Management

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“…Antonelli and Fraser [12] found long-term C storage efficiency was higher for lower biosolids application rates. In contrast, Badzmierowski and Evanylo [13] found that SOC stocks decreased during years with no amendment application. This indicated that the applied carbon from the organic amendments was still undergoing decomposition and not being "stored."…”

Section: Introductionmentioning

confidence: 89%

What is the impact of human wastewater biosolids (sewage sludge) application on long-term soil carbon sequestration rates? A systematic review protocol

et al. 2021

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Background Human wastewater biosolids, hereafter referred to as biosolids, are produced in significant quantities around the world and often applied to an extensive land mass including agricultural fields, forests, mine lands, and urban areas. Land-application of biosolids has been reported in peer-reviewed and non-peer-reviewed work to change soil organic carbon stocks in varying amounts. Determining the potential of soil organic carbon (SOC) stock change and sequestration from biosolids land application is critical for biosolids producers and users to gain access to carbon credit markets. Our review question is, "what is the impact of biosolids application on long-term soil carbon sequestration rates?” We look to explore this main question with the follow-up, "does biosolids processing methods and characteristics, application method, soil properties, land management and other modifiers affect rates of carbon accumulation from land-applied biosolids?" Methods Searches will be conducted using online databases (i.e., Web of Science Core Collection, CAB Abstracts, Scopus, ProQuest Dissertations & Theses Global), search engines (Google Scholar and Microsoft Academic), and specialist websites to find primary field studies and grey literature of biosolids land-application effects on soil organic carbon stocks. We will use English search terms and predefined inclusion criteria of: (1) a field study of at least 24 months that reports soil organic carbon/matter (SOC/SOM) concentrations/stocks; (2) has two types of treatments: (i) a control (non-intervention AND/OR synthetic fertilizer) AND (ii) a biosolids-based amendment; and (3) information of amendment properties and application dates and rates to estimate the relative contribution of the applied materials to SOC changes. We will screen results in two stages: (1) title and abstract and (2) full text. A 10% subset will be screened by two reviewers for inclusion at the title and abstract level and use a kappa analysis to ensure agreement of at least 0.61. All results in the full text stage will be dual screened. Data will be extracted by one person and reviewed by a second person. Critical appraisal will be used to assess studies’ potential bias and done by two reviewers. A meta-analysis using random effects models will be conducted if sufficient data of high enough quality are extracted.

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“…Biosolids can contain heavy metals, pathogens, and residual pharmaceuticals, posing a risk to water quality and human health. [123][124][125][126][127][128] Note: costs of organic fertilizers (in the U.S. market in 2023) are adapted from 7SpringsFarm and Fertrell Co. Plant, Bainbridge, PA, USA; data were collected in October 2023.…”

Section: Fertilizer Type Initial Cost (Per Unit) Yield Impact Soil He...mentioning

confidence: 99%

Rooted in Nature: The Rise, Challenges, and Potential of Organic Farming and Fertilizers in Agroecosystems

Panday,

Bhusal,

Das

et al. 2024

Sustainability

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Organic farming, which is deeply rooted in traditional agricultural practices, has witnessed a profound evolution over the last century. Transitioning from a grassroots initiative resisting the industrialization of agriculture to a global industry, organic farming now plays a pivotal role in addressing contemporary challenges related to environmental health, sustainability, and food safety. Despite the growing consumer demand for organic products and market access, organic farming has its challenges. This paper discusses the origin and evolution of organic farming with an emphasis on different types of organic fertilizers, benefits, and challenges. Nutrient variability and the slow-release nature of organic fertilizer often do not meet crop demands and can substantially reduce yield. Some organic fertilizers, like manure and biosolids, can provide a higher yield benefit, but there are environmental and health risks associated with them. Weed and pest management in organic farming can be labor-intensive and increase costs. Inefficient planning of organic farming and rapid transition can also create food insecurity. This paper also gives a brief account of the current certification process for organic fertilizers and their technicalities. It showcases how the holistic approach of organic farming extends beyond production, including strategies like reducing food waste and building self-sufficient farming communities. These practices contribute to a more sustainable agricultural system, reducing environmental impacts and supporting local economies. Future technological innovations, especially in precision agriculture and bio-physicochemical models, can help in formulating targeted organic fertilizers.

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Biosolids amendments improve an anthropogenically disturbed urban turfgrass system

Cited by 5 publications

References 54 publications

Biobased residues sustain crop productivity and soil health in a maize–soybean rotation

Biobased residues sustain crop productivity and soil health in a maize–soybean rotation

What is the impact of human wastewater biosolids (sewage sludge) application on long-term soil carbon sequestration rates? A systematic review protocol

Rooted in Nature: The Rise, Challenges, and Potential of Organic Farming and Fertilizers in Agroecosystems

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