Assessing microbial population dynamics, enzyme activities and phosphorus availability indices during phospho-compost production
| Autor: | Oyeyemi A. Dada, T. J. Mokase, O. H. J. Rhode, Funso Raphael Kutu |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Population
chemistry.chemical_element 010501 environmental sciences engineering.material 01 natural sciences complex mixtures lcsh:TD1-1066 Enzyme activities Available P Food science lcsh:Agriculture (General) lcsh:Environmental technology. Sanitary engineering education Waste Management and Disposal 0105 earth and related environmental sciences education.field_of_study biology Phospho-compost Compost Chemistry Phosphorus fungi 04 agricultural and veterinary sciences Mineralization (soil science) Agricultural and Biological Sciences (miscellaneous) lcsh:S1-972 Enzyme assay Non-reactive phosphate rock Phosphorite 040103 agronomy & agriculture engineering biology.protein 0401 agriculture forestry and fisheries Compost bio-quality indices Fertilizer Mesophile |
| Zdroj: | International Journal of Recycling of Organic Waste in Agriculture, Vol 8, Iss 1, Pp 87-97 (2018) |
| ISSN: | 2251-7715 2195-3228 |
| Popis: | Purpose This study assessed changes in bio-quality indices and plant available P released during aerobic–thermophilic co-composting of different mix ratios of non-reactive ground phosphate rock (GPR) with poultry and cattle manures. Methods Aerobic–thermophilic co-composting of different mix ratios (5:5, 8:2, 7:3 and 9:1) of non-reactive GPR with poultry and cattle manures was carried out. Compost piles without GPR addition were included as control. Compost samples were taken at mesophilic, thermophilic, cooling–stabilization and maturing phases for microbial counts, enzyme activities and P assessment. Results Abundance of different microbial groups across the composting phases varied greatly (p 0.05) indicating inhibition of the P forms. Quantitatively higher P was obtained from poultry manure-based phospho-compost and in the 8:2 mix ratio at compost maturity. Microbial diversity and enzyme activity exerted positive impact on P mineralization and availability from the non-reactive GPR signifying the beneficial effect of co-composting. Conclusions Co-composting of P-rich non-reactive GPR with organic wastes containing variable chemical composition promotes microbial diversity during composting and increases plant available P content and compost fertilizer value. |
| Databáze: | OpenAIRE |
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