Your search found 4 records
1 Grau, Felix; Drechsel, Nikita; Trautz, D.; Weerakody, J.; Ranaweera, B. 2016. Fertiliser derived from fecal sludge in Sri Lanka: analysis of plant nutritional value and heavy metal contamination. Paper presented at the Annual Tropical and Subtropical Agricultural and Natural Resource Management (Tropentag) Conference on Food Security, Natural Resource Management and Rural Development, Vienna, Austria, 18-21 September 2016. 4p.
Faecal sludge ; Plant nutrition ; Heavy metals ; Contamination ; Organic fertilizers ; Organic carbon ; Organic matter ; Organic wastes ; Urban wastes ; Agricultural wastes ; Waste disposal ; Waste treatment ; Recycling ; Composting ; Sanitation / Sri Lanka
(Location: IWMI HQ Call no: e-copy only Record No: H047836)
2 Grau, Felix; Drechsel, Nikita; Haering, V.; Trautz, D.; Weerakkody, W. J. S. K.; Drechsel, Pay; Marschner, B.; Dissanayake, D. M. P. S.; Sinnathamby, V. 2017. Impact of fecal sludge and municipal solid waste co-compost on crop growth of Raphanus Sativus L. and Capsicum Anuum L. under stress conditions. Resources, 6(3):1-12. [doi: https://doi.org/10.3390/resources6030026]
Faecal sludge ; Urban wastes ; Solid wastes ; Composting ; Crop improvement ; Raphanus sativus ; Capsicum annuum ; Stress conditions ; Agricultural practices ; Resource recovery ; Organic matter ; Waste management ; Waste treatment ; Inorganic fertilizers ; Drought ; Nutrients ; Cost benefit analysis / Sri Lanka
(Location: IWMI HQ Call no: e-copy only Record No: H048191)
(1.15 MB)
Co-composted dewatered faecal sludge (FS) with organic fractions of municipal solid waste (MSW) has a high potential to be used as an agricultural resource in Sri Lanka. In addition to options for cost recovery in waste management, closing the nutrient and carbon cycles between urban and rural areas, substitution of mineral fertilizers, reduced pollution. and the restoration of degraded arable land are possible with important benefits. Up to now little is known about the usage of FS-MSW as fertilizer and it needs to be studied in order to achieve a better understanding and generate application recommendations. The aim of these experiments has been to evaluate the possibility of substituting mineral fertilization. Two field experiments were conducted on sandy loam to assess the effects of MSW compost and FS-MSW co-compost, its pelletized forms, and mineral-enriched FS-MSW on crop growth. As a short-term crop Raphanus sativus “Beeralu rabu” (radish) was studied for 50 days in a randomized complete block design (RCDB). Results show that, under drought conditions, FS-MSW co-compost increased the yield significantly, while MSW and FS-MSW compost enabled the highest survival rate of the plants. Similarly, the second field trial with a long-term crop, Capsicum anuum “CA-8” (capsicum), was planted as RCBD, using the same treatments, for a cultivation period of 120 days. Results display that during a drought followed by water saturated soil conditions co-compost treatments achieved comparable yields and increased the survival rate significantly compared to the control, fertilized with urea, triple super phosphate, and muriate of potash. Cost-benefit analysis (CBA) revealed that pelletizing decreased the monetary benefits if only fertilizer value is considered. It can be concluded that, under drought and water stress, co-compost ensures comparable yields and enables more resistance, but might not be economical viable as a one-crop fertilizer. These findings need to be validated with further trials under different climate regimes and soils.
3 Thiel, Felix; Phillips, I.; Drechsel, Nikita. 2020. Megapolis city region food systems and their vulnerability towards climate change related hazards. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 2p.
Food systems ; Urban areas ; Vulnerability ; Climate change ; Extreme weather events ; Drought ; Flooding ; Rain ; Temperature ; Sea level ; Climatic zones / Sri Lanka
(Location: IWMI HQ Call no: e-copy only Record No: H050836)
https://waterdata.iwmi.org/applications/sanitaion/reports/Climate%20resilient%20City%20Region%20Food%20Systems_Two%20pager.pdf
https://vlibrary.iwmi.org/pdf/H050836.pdf
https://vlibrary.iwmi.org/pdf/H050836.pdf
(6.85 MB) (6.85 MB)
4 Thiel, Felix; Phillips, I.; Drechsel, Nikita. 2019. Rapid scan: Colombo City Region Food Systems and their vulnerability towards climate change related shocks. A report for the FAO-RUAF CRFS Programme. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 48p.
Food systems ; Urban areas ; Climate change ; Weather hazards ; Vulnerability ; Forecasting ; Precipitation ; Rain ; Flooding ; Drought ; Temperature ; Sea level ; Agricultural production ; Marketing ; Food consumption ; Farmland ; Land use ; Stakeholders / Sri Lanka / Colombo
(Location: IWMI HQ Call no: e-copy only Record No: H050837)
https://waterdata.iwmi.org/applications/sanitaion/reports/Rapid%20Scan_Colombo%20CRFS%20Climate%20change%20risks_draft.pdf
https://vlibrary.iwmi.org/pdf/H050837.pdf
https://vlibrary.iwmi.org/pdf/H050837.pdf
(3.44 MB) (3.44 MB)
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