Spent Coffee Grounds, Plant Growth Promoting Bacteria, and Medicinal Plant Waste: The Biofertilizing Effect of High-Value Compost
Abstract
:1. Introduction
2. Materials and Methods
2.1. Material for Decomposition
2.2. Bacterial Strains
2.3. Composting Process
2.4. Sampling and Analysis
2.4.1. Organic Matter Content
2.4.2. pH Value
2.4.3. Changes in CO2 Release
2.4.4. Dehydrogenase Activity (DHA)
2.4.5. Total Carbon and Nitrogen
2.4.6. Evaluation of Phytotoxicity
2.5. Statistical Analysis
3. Results and Discussion
3.1. Monitoring of the Composting Process
3.1.1. Dehydrogenase Activity (DHA)
3.1.2. Changes in CO2 Release
3.1.3. Total Carbon and Nitrogen (C/N) Ratio
3.1.4. pH Value
3.1.5. Organic Matter (OM)
3.1.6. Phytotoxicity of Composting Material
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Mark | Composition |
---|---|
P | mixed plant waste (control) |
PC5% | mixed plant waste + 5% w/w spent coffee grounds |
PBC1% | mixed plant waste + 1% w/w spent coffee grounds + 2% v/w of inoculum |
PBC5% | mixed plant waste + 5% w/w spent coffee grounds + 2% v/w of inoculum |
PBC10% | mixed plant waste + 10% w/w spent coffee grounds + 2% v/w of inoculum |
Composting Days | Sample | ||||
---|---|---|---|---|---|
P | PC5% | PBC1% | PBC5% | PBC10% | |
0 | 38.07 | 34.56 | 37.71 | 34.92 | 33.16 |
26 | 20.56 | 19.45 | 20.34 | 19.77 | 20.87 |
57 | 17.50 | 16.08 | 16.72 | 17.08 | 16.64 |
91 | 14.92 | 14.59 | 14.77 | 14.34 | 13.36 |
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Dimitrijević, S.; Milić, M.; Buntić, A.; Dimitrijević-Branković, S.; Filipović, V.; Popović, V.; Salamon, I. Spent Coffee Grounds, Plant Growth Promoting Bacteria, and Medicinal Plant Waste: The Biofertilizing Effect of High-Value Compost. Sustainability 2024, 16, 1632. https://doi.org/10.3390/su16041632
Dimitrijević S, Milić M, Buntić A, Dimitrijević-Branković S, Filipović V, Popović V, Salamon I. Spent Coffee Grounds, Plant Growth Promoting Bacteria, and Medicinal Plant Waste: The Biofertilizing Effect of High-Value Compost. Sustainability. 2024; 16(4):1632. https://doi.org/10.3390/su16041632
Chicago/Turabian StyleDimitrijević, Snežana, Marija Milić, Aneta Buntić, Suzana Dimitrijević-Branković, Vladimir Filipović, Vera Popović, and Ivan Salamon. 2024. "Spent Coffee Grounds, Plant Growth Promoting Bacteria, and Medicinal Plant Waste: The Biofertilizing Effect of High-Value Compost" Sustainability 16, no. 4: 1632. https://doi.org/10.3390/su16041632