Your search found 11 records
1 Sreedevi, T. K.; Wani, S. P. 2009. Integrated farm management practices and upscaling the impact for increased productivity of rainfed systems. In Wani, S. P.; Rockstrom, J.; Oweis, T. (Eds.). Rainfed agriculture: unlocking the potential. Wallingford, UK: CABI; Patancheru, Andhra Pradesh, India: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT); Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.222-257. (Comprehensive Assessment of Water Management in Agriculture Series 7)
(Location: IWMI HQ Call no: IWMI 631.586 G000 WAN Record No: H042001)
2 Indu, R.; Borkar, Ajinkya; Dave, Alpa. 2008. A turning point?: water saving technologies in north Gujarat's groundwater socio-ecology. In Kumar, M. Dinesh (Ed.). Managing water in the face of growing scarcity, inequity and declining returns: exploring fresh approaches. Proceedings of the 7th Annual Partners Meet, IWMI TATA Water Policy Research Program, ICRISAT, Patancheru, Hyderabad, India, 2-4 April 2008. Vol.1. Hyderabad, India: International Water Management Institute (IWMI), South Asia Sub Regional Office. pp.83-97.
(Location: IWMI HQ Call no: IWMI 631.7 G635 KUM Record No: H042347)
(0.06 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H043190)
(0.34 MB)
As soil engineers, earthworms play a key role in soil organic matter turnover and ecosystem functioning. Numerous studies have shown their positive influence on plant growth and soil quality. At the same time, organic matter inputs in compost or vermicompost, produced in the presence of earthworms, are valuable soil amendments that may increase plant growth. However, whether the combination of earthworm activity and organic matter amendments can be a successful approach for soil rehabilitation remains insufficiently studied. The aim of the present study was to determine the interactions between Dichogaster bolaui , an endogeic earthworm species, and compost or vermicompost produced by Eisenia andrei , an epigeic earthworm species, in a degraded tropical soil. We assessed nutrient availability and natural vegetation recovery. Treatments with and without D. bolaui earthworms were compared. The incorporation of both types of organic matter improved soil quality (i.e., higher pH, more C and nutrients) and led to the recovery of vegetation growth (i.e., development of seedlings and higher above- and belowground biomass). Mineral nutrients, on the other hand, had no effect on vegetation development and led to more pollution of groundwater (i.e., higher concentrations of N-NH 4 +, N-NO 3 - , K and P). Although we could not draw definite conclusions about whether vermicompost had a more positive effect on plant growth than compost, this substrate improved soil chemical properties compared with compost. Dichogaster bolaui enhanced leaching of N-NH 4 + , N-NO 3 - and K when mineral nutrients were used. However overall, D. bolaui had a neutral impact on plant growth when combined with compost, but a negative effect when in combination with vermicompost inputs. In conclusion, this experiment demonstrated that organic matter amendment is an interesting alternative for the rehabilitation of tropical soils. However, negative interactions can occur between local endogeic earthworms and vermicompost.
(Location: IWMI HQ Call no: e-copy only Record No: H043675)
(0.89 MB)
5 Unnisa, S. A.; Rav, S. B. (Eds.) 2013. Sustainable solid waste management. Oakville, ON, Canada: Apple Academic Press. 163p.
(Location: IWMI HQ Call no: 363.7282 G000 UNN Record No: H046748)
(0.28 MB)
6 Gunawardena, J.; Muthuwatta, Lal; Fernando, M. J. J.; Rathnayake, S.; Rodrigo, T. M. A. S. K.; Gunawardena, A. (Eds.) 2015. Proceedings of the First International Symposium on Environment Management and Planning, Battaramulla, Sri Lanka, 23-24 February 2015. Colombo, Sri Lanka: Central Environmental Authority (CEA). 55p.
(Location: IWMI HQ Call no: IWMI Record No: H046899)
(1.32 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H048213)
(669 KB)
Healthy soils are essential for productive and resilient agricultural systems. They are also increasingly recognized as a means to mitigate climate change risks. While solutions for restoring degraded soils and landscapes do exist, improved knowledge and tools are needed to enhance their impacts over time and at scale. WLE has assessed the impacts of various land restoration initiatives and developed a range of tools to better tailor and target investments and interventions to local contexts.
8 Otoo, Miriam. (Ed.) 2018. Nutrient and organic matter recovery - Section III. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.316-546.
(Location: IWMI HQ Call no: IWMI Record No: H048653)
(8.29 MB)
9 Otoo, Miriam; Karanja, N.; Odero, J.; Hope, L. 2018. Agricultural waste to high quality compost (DuduTech, Kenya) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.450-458.
(Location: IWMI HQ Call no: IWMI Record No: H048666)
(1.30 MB)
10 Reynoso-Lobo, J.; Otoo, Miriam; Schoebitz, L.; Strande, L. 2018. Livestock waste for compost production (ProBio/Viohache Mexico) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.468-477.
(Location: IWMI HQ Call no: IWMI Record No: H048668)
(1.14 MB)
(Location: IWMI HQ Call no: IWMI Record No: H049068)
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