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1 Nartey, Eric Gbenatey; Amoah, Philip; Ofosu-Budu, G. K.; Muspratt, A.; Pradhan, Surendra Kumar. 2017. Effects of co-composting of faecal sludge and agricultural wastes on tomato transplant and growth. International Journal of Recycling of Organic Waste in Agriculture, 6(1):23-36. [doi: https://doi.org/10.1007/s40093-016-0149-z]
Faecal sludge ; Agricultural wastes ; Vegetables ; Tomatoes ; Transplanting ; Seedling production ; Composting ; Cocoa husks ; Solid wastes ; Organic wastes ; Greenhouse crops ; Inorganic fertilizers ; Temperature ; Nutrients ; Biochar ; Nitrogen ; Soil amendments ; Waste management
(Location: IWMI HQ Call no: e-copy only Record No: H047992)
http://link.springer.com/content/pdf/10.1007%2Fs40093-016-0149-z.pdf
https://vlibrary.iwmi.org/pdf/H047992.pdf
https://vlibrary.iwmi.org/pdf/H047992.pdf
(585 KB)
Purpose: Faecal sludge (FS) has been co-composted with many organic solid wastes globally. Agricultural wastes, such as oil palm empty fruit bunches (EFB) and cocoa pod husks (CPH), have received very little research attention as far as combining with FS is concerned. This study aimed at co-composting these wastes at different ratios to produce safe compost for use as soilless medium for raising tomato transplants. Methods: Dewatered FS (DFS) was mixed with shredded EFB and CPH at five different ratios: 1DFS:1EFB, 1DFS:1CPH, and DFS:EFB:CPH in ratios of 1:1:1, 2:1:1, and 2:2:1 and composted for 3 months. Select physicochemical parameters and pathogens were monitored every fortnightly and 3 weeks, respectively. Results: Maximum temperatures obtained ranged 46.8–54.5 °C. Though these temperatures were lower than sanitizing temperatures prescribed by USEPA, no E. coli was found in any of the piles at the end of composting. The ratio 2DFS:2EFB:1CPH was found to be the safest formulation and hence was used to grow tomato under greenhouse conditions. Tomato seeds were sown in three different growing media: 100% FS-based compost, 100% rice husk biochar, and 50% FS-based compost–50% rice husk biochar mix. Conclusion: Results showed that FS-based compost was a suitable growing medium for tomato. Further studies into the optimal rate and frequency of application of compost teas on tomato are recommended.
2 Pradhan, Surendra K.; Cofie, Olufunke; Nikiema, Josiane; Heinonen-Tanski, H. 2019. Fecal sludge derived products as fertilizer for lettuce cultivation in urban agriculture. Sustainability, 11(24):7101. [doi: https://doi.org/10.3390/su11247101]
Faecal sludge ; Organic fertilizers ; Urban agriculture ; Lettuces ; Cultivation ; Fertilization ; Soil fertility ; Greenhouse crops ; Sustainable products ; Crop yield ; Nutrients ; Waste management ; Waste treatment ; Composting ; Pellets ; Sludge dewatering ; Enrichment ; Hygiene ; Faecal coliforms ; Soil chemicophysical properties ; Poultry manure / Ghana / Accra
(Location: IWMI HQ Call no: e-copy only Record No: H049661)
(0.27 MB) (272 KB)
Fecal sludge (FS) contains a significant amount of plant nutrients. FS (treated/untreated) has been used as soil ameliorant in several countries. Use of FS-based compost on lettuce may meet reservations due to possible microbiological contamination. The objectives of this research are: (1) To determine the fertilizer value of different formulations of sawdust and fecal sludge compost (SDFS) pellets, and (2) to compare the effect of these SDFS formulations with poultry manure, commercial compost, mineral fertilizer, and non-fertilization on lettuce cultivation. The SDFS products were made by enriching, and pelletized with ammonium sulphate, mineral-NPK, or ammonium sulphate + muriate of potash + triple superphosphate. Lettuce was cultivated in a greenhouse and an open field. The result showed that the saleable fresh weight lettuce yield obtained from all SDFS pellets with/without enrichments were higher than those obtained from commercial compost, poultry manure, mineral fertilizer, or no fertilizer. Cultivation in the open field gave higher yields than those in the greenhouse. No helminth eggs were detected in composts or lettuces. Some fecal coliforms were detected in lettuces fertilized with almost all fertilizers tested, including NPK and non-fertilized control. A properly treated fecal sludge-based fertilizer can be a sustainable solution for lettuce production, which helps urban and peri-urban agriculture.
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