Your search found 16 records
1 Bhattacharya, B. K.; Sastry, P. S. N. 1999. Comparative evaluation of three-crop growth models for the simulation of soil water balance on oilseed Brassica. Agricultural Water Management, 42(1):29-46.
Simulation models ; Soil water ; Water balance ; Soil moisture ; Plant growth ; Oil plants ; Evapotranspiration / India / New Delhi
(Location: IWMI-HQ Call no: PER Record No: H024943)
2 Nair, K. N. S. 2003. The Keralam kaleidoscope: Resource management for sustainable development of Keralam’s agriculture. Wastelands News, 19(1):60-63.
(Location: IWMI-HQ Call no: P 6634 Record No: H033483)
3 Choudhury, B. U.; Singh, A. K.; Bouman, B. A. M. 2005. Effect of establishment techniques on yield, crop-water relationship in rice and wheat. In Thiyagarajan, T. M.; Hengsdijk, H.; Bindraban, P. S. (Eds.), Transitions in agriculture for enhancing water productivity. Proceedings of an international symposium held in Killikulam, Tamil Nadu, India, 23-25 September 2003. Tamil Nadu, India; Wageningen, Netherlands: Tamil Nadu Agricultural University. Agricultural College & Research Institute; Wageningen University and Research Centre. Plant Research International. pp.19-37.
Irrigated farming ; Rice ; Wheat ; Cropping systems ; Crop yield ; Experiments ; Water balance ; Productivity ; Nitrogen / South East Asia / India / New Delhi
(Location: IWMI-HQ Call no: 631.7.2 G570 THI Record No: H037025)
4 Narain, S.; Babu, S. S. V.; Seth, B. L.; Chak, A.; Dixit, V. K. 2007. Sewage canal: how to clean The Yamuna. New Delhi, India: Centre for Science and Environment (CSE). 180p.
Waste management ; Sewage ; Rivers ; Pollution ; Action plans ; Upstream ; Downstream ; Wastewater ; Waste treatment ; Water quality ; Coliform bacteria / India / Yamuna River / New Delhi
(Location: IWMI HQ Call no: 628.3 G635 NAR Record No: H043793)
(0.54 MB)
5 Sultana, F.; Loftus, A. (Eds.) 2012. The right to water: politics, governance and social struggles. London, UK: Earthscan. 262p.
Water rights ; Human rights ; Water governance ; Water scarcity ; Water security ; Water quality ; Drinking water ; Legal aspects ; Case studies ; Economic aspects ; Political aspects ; European Union / New Zealand / Aotearoa / Latin America / USA / South Africa / India / Bolivia / Plachimada / Mexico / Cochabamba / Colombia / New Delhi
(Location: IWMI HQ Call no: 333.91 G000 SUL Record No: H044695)
(0.35 MB)
6 Sultana, F.; Loftus, A. (Eds.) 2012. The right to water: politics, governance and social struggles. London, UK: Earthscan. 262p.
Water rights ; Human rights ; Water governance ; Water scarcity ; Water security ; Water quality ; Drinking water ; Legal aspects ; Case studies ; Economic aspects ; Political aspects ; European Union / New Zealand / Aotearoa / Latin America / USA / South Africa / India / Bolivia / Plachimada / Mexico / Cochabamba / Colombia / New Delhi
(Location: IWMI HQ Call no: 333.91 G000 SUL c2 Record No: H044696)
(0.35 MB)
7 Amerasinghe, Priyanie; Drechsel, Pay; Bhardwaj, R. 2012. Reuse applications for treated wastewater and fecal sludge in the capital city of Delhi, India. In US Environmental Protection Agency (EPA); National Risk Management Research Laboratory; USAID. 2012 Guidelines for water reuse. Appendix E - International case studies and international regulations. Washington, DC, USA: US Environmental Protection Agency (EPA); Cincinnati, OH, USA: National Risk Management Research Laboratory; Washington, DC, USA: USAID. pp.E43-E46.
Wastewater treatment ; Water reuse ; Feaces ; Sewage sludge ; Water quality ; Institutions / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H045516)
http://www.waterreuseguidelines.org/images/documents/2012epaguidelines.pdf
https://vlibrary.iwmi.org/pdf/H045516.pdf
https://vlibrary.iwmi.org/pdf/H045516.pdf
(0.40 MB) (27.96MB)
8 Mathur, G. N.; Chawla, A. S. (Eds.) 2005. Water for sustainable development - towards innovative solutions: proceedings of the XII World Water Congress, New Delhi, India, 22-25 November 2005. Vol. 3. New Delhi, India: Central Board of Irrigation and Power; Montpellier, France: International Water Resources Association (IWRA). 526p.
Water governance ; Water management ; International waters ; Agreements ; Conflicts ; Groundwater extraction ; Water quality ; Water law ; Water rights ; Water use ; Water security ; Water scarcity ; Wastewater ; River basins ; Water conservation ; Water distribution ; Water supply ; Sanitation ; Watersheds ; Poverty ; Economic growth ; Environmental protection ; Urban development ; Community involvement ; Women ; Financing ; Climate change ; Natural disasters ; Irrigation management ; Participatory management / Asia / Central Asia / Middle East / Cambodia / India / North Africa / South Africa / Sri Lanka / Thailand / Nepal / Malaysia / Mexico / Canada / North China / Tonle Sap Lake / Andhra Pradesh / New Delhi / Bangkok / Colorado River Basin / Haihe River Basin
(Location: IWMI HQ Call no: 333.91 G000 MAT Record No: H045959)
(0.53 MB)
9 Kloppmann, W.; Sandhu, C.; Groeschke, M.; Pandian, R. S.; Picot-Colbeau, G.; Fahimuddin, M.; Ahmed, S.; Alazard, M.; Amerasinghe, Priyanie; Bhola, P.; Boisson, A.; Elango, L.; Feistel, U.; Fischer, S.; Ghosh, N. C.; Grischek, T.; Grutzmacher, G.; Hamann, E.; Nair, I. S.; Jampani, Mahesh; Mondal, N. C.; Monninkhoff, B.; Pettenati, M.; Rao, S.; Sarah, S.; Schneider, M.; Sklorz, S.; Thiery, D.; Zabel, A. 2015. Modelling of natural water treatment systems in India: Learning from the Saph Pani case studies. In Wintgens. T.; Nattorp, A.; Elango, L.; Asolekar, S. R. (Eds.). Natural water treatment systems for safe and sustainable water supply in the Indian context: Saph Pani, London, UK: IWA Publishing. pp. 227-250.
Wastewater treatment ; Wastewater irrigation ; Models ; Riverbank protection ; Filtration ; Wetlands ; Flow discharge ; Water quality ; Water reuse ; Aquifers ; Groundwater recharge ; Groundwater management ; Watershed management ; Surface water ; Coastal area ; Drinking water ; Salt water intrusion ; Geology ; Weathering ; Irrigation canals ; Case studies / India / New Delhi / Chennai / Tamil Nadu / Telangana / Hyderabad / Maheshwaram / Uttarakhand / Haridwar / Yamuna River / Ganga River / Musi River
(Location: IWMI HQ Call no: e-copy only Record No: H047553)
https://zenodo.org/record/61088/files/9781780408392_14.pdf
https://vlibrary.iwmi.org/pdf/H047553.pdf
https://vlibrary.iwmi.org/pdf/H047553.pdf
(12.42 MB) (3.9 MB)
10 Tripathi, V. K.; Rajput, T. B. S.; Patel, N.; Kumar, P. 2016. Effects on growth and yield of eggplant (Solanum melongema L.) under placement of drip laterals and using municipal wastewater. Irrigation and Drainage, 65(4):480-490. [doi: https://doi.org/10.1002/ird.1971]
Wastewater irrigation ; Wastewater treatment ; Vegetable growing ; Solanum melongena ; Crop yield ; Periurban areas ; Irrigation systems ; Drip irrigation ; Groundwater irrigation ; Subsurface irrigation ; Irrigation equipment ; Performance evaluation ; Chemicophysical properties ; Soils ; Leaf Area Index ; Root length ; Dry matter content ; Models / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H047798)
(0.49 MB)
This study was conducted to utilize municipal wastewater through surface and subsurface (15 and 30 cm) drip systems. Wastewater was treated though media type, disk type and combined media and disk type filters. The field experiment was conducted for two years with wastewater and groundwater. Root length density (RLD), leaf area index (LAI), and fruit yield with dry matter was recorded. LAI was lower under subsurface drip during the initial 55 days after transplantation, but in later stages it was significantly higher in comparison to surface drip. Highest RLD of 3.6 cm cm–3 was recorded under subsurface drip at 30 cm depth. RLD and LAI were related with a correlation coefficient value of 0.69. Highest dry matter content (8.75%) was recorded under surface drip but highest fruit yield was recorded under subsurface placement of drip at 15 cm depth. Subsurface drip at 15 and 30 cm depths resulted in 12.4 and 8.5% higher yields respectively, in comparison with surface drip. Utilization of wastewater through a drip irrigation system has given 6.2% increase in eggplant fruit yield in comparison to groundwater irrigation, with savings of 47, 18 and 40% of N, P2O5 and K2O nutrients respectively. The findings of the present study elucidate the potentials and constraints of wastewater utilization through a subsurface drip system.
11 Kumar, M.; Kumar, R.; Rajput, T. B. S.; Patel, N. 2017. Efficient design of drip irrigation system using water and fertilizer application uniformity at different operating pressures in a semi-arid region of India. Irrigation and Drainage, 66(3):316-326. [doi: https://doi.org/10.1002/ird.2108]
Irrigation systems ; Drip irrigation ; Water use ; Fertilizer application ; Performance evaluation ; Irrigation water ; Water distribution ; Nutrients ; Water quality ; Chemicophysical properties ; Discharges ; Uniformity coefficient ; Semiarid zones ; Experimentation / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H048187)
(0.92 MB)
Performance evaluation of irrigation has been an important area of research for better management of water resources. The present study was conducted to evaluate the effect of drip lateral lengths and system operating pressures on water and fertilizer application uniformity at the Indian Agricultural Research Institute (IARI), New Delhi, India. The following parameters of nutrients and water were studied to design and evaluate the performance of drip irrigation systems: (i) uniformity coefficient; (ii) discharge variation; (iii) distribution uniformity; (iv) statistical uniformity. Drip-line lengths and system operating pressures (P < 0.05 and P < 0.01) significantly affect the different parameters of fertilizer and water application. The highest values of uniformity coefficient (99.2%), statistical uniformity (99.2%) and distribution uniformity (97.4%) for irrigation water were observed at a pressure of 1.5 kg cm 2 with a 25 m long drip-line. Lower values of discharge variation (2.65%) and coefficient of variation (0.04) were observed at the same operating pressure (1.5 kg cm 2 ) and drip-line length. However, the lowest value of the uniformity coefficient (88.1%), statistical uniformity (93.7%) and distribution uniformity (93.2%) for irrigation water were recorded at 0.5 kg cm 2 pressure with a 100 m long drip-line length. The highest values of urea, potassium and phosphorus distribution uniformity were found to be 97.8, 97.1 and 98.2%, respectively, at 1.5 kg cm 2 pressure with 25 m long drip-line, and lower values of urea, potassium and phosphorus distribution uniformity (93.1, 92.6 and 93.2%, respectively) were recorded at 0.5 kg cm 2 pressure with a 100 m long drip-line. Water and fertilizer distribution uniformity decreased with increase in drip-line length, and increased with increase in system operating pressure.
12 Gebrezgabher, Solomie; Natarajan, H. 2018. Biogas from fecal sludge at community scale (Sulabh, India) - 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.103-113.
Biogas ; Faecal sludge ; Sanitation ; Composts ; Nongovernmental organizations ; Supply chain ; Households ; Environmental impact ; Health hazards / India / New Delhi
(Location: IWMI HQ Call no: IWMI Record No: H048632)
(1.08 MB)
13 Stock, R.; Vij, S.; Ishtiaque, A. 2021. Powering and puzzling: climate change adaptation policies in Bangladesh and India. Environment, Development and Sustainability, 23(2):2314-2336. [doi: https://doi.org/10.1007/s10668-020-00676-3]
Climate change adaptation ; Policy making ; Political aspects ; Vulnerability ; Strategies ; Nongovernmental organizations ; Government agencies ; Farmers ; Participation ; Social aspects ; Economic aspects / South Asia / India / Bangladesh / Gujarat / New Delhi / Dhaka
(Location: IWMI HQ Call no: e-copy only Record No: H050224)
https://link.springer.com/content/pdf/10.1007/s10668-020-00676-3.pdf
https://vlibrary.iwmi.org/pdf/H050224.pdf
https://vlibrary.iwmi.org/pdf/H050224.pdf
(0.74 MB) (756 KB)
South Asia is a region uniquely vulnerable to climate-related impacts. Climate change adaptation in India and Bangladesh evolves using powering and puzzling approaches by policy actors. We seek to answer the question: how do powering and puzzling approaches influence the climate change adaptation policy design and implementation processes in Bangladesh and India? We adopted two strategies to collect and analyze data: semi-structured interviews and discourse analysis. We found that adaptation policymaking is largely top-down, amenable to techno-managerial solutions, and not inclusive of marginalized actors. In Bangladesh, power interplays among ministerial agencies impair the policy implementation process and undermine the success of puzzling. Local-scale agencies do not have enough authority or power to influence the overall implementation processes occurring at higher scales of governance. The powering of different actors in Bangladesh is visible through a duality of mandates and a lack of integration of climate adaptation strategies in different government ministries. The powering aspect of India’s various adaptation policies is the lack of collective puzzling around the question of differentiated vulnerability by axes of social difference. Paradoxically, India has a puzzling approach of hiding behind the poor in international negotiations. Moving forward, both countries should strive to have more inclusive and equitable adaptation policymaking processes that enable the participation of marginalized populations and represent their anxieties and aspirations. Identifying policy-relevant insights from South Asia using the powering and puzzling approaches can foster adaptation policy processes that facilitate empowerment, the missing piece of the adaptation policymaking puzzle.
14 Patra, S.; Parihar, C. M.; Mahala, D. M.; Singh, D.; Nayak, H. S.; Patra, K.; Reddy, K. S.; Pradhan, S.; Sena, Dipaka Ranjan. 2023. Influence of long-term tillage and diversified cropping systems on hydro-physical properties in a sandy loam soil of North-western India. Soil and Tillage Research, 229:105655. [doi: https://doi.org/10.1016/j.still.2023.105655]
Cropping systems ; Diversification ; Tillage ; Hydraulic conductivity ; Soil physical properties ; Sandy loam soils ; Soil aggregates ; Soil organic carbon ; Conservation agriculture ; Maize ; Wheat ; Mung beans ; Chickpeas ; Mustard ; Sesbania / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H051761)
(2.53 MB)
A study was conducted to determine the combined effects of three tillage practices and four maize (Zea mays L.)- based cropping systems on physical, saturated, and near-saturated hydraulic properties in a sandy loam soil of North-Western India. Split-plot experimental design was adopted with tillage [conventional tillage (CT), zero tillage (ZT), and permanent raised bed (PB)] as the main plot treatments and intensified crop rotations [Maize (Zea mays L.)-Wheat (Triticum aestivum)-Greengram (Vigna radiata L.) (MWGg), Maize-Chickpea (Cicer arietinum L.)-Sesbania (Sesbania aculeata) (MCpSb), Maize-Mustard (Brassica juncea) -Greengram (MMuGg) and MaizeMaize-Sesbania (MMSb)] as subplot treatments. The saturated and near-saturated soil hydraulic conductivity were derived from steady-state infiltration rates measured using a hood infiltrometer on the surface soil at 0, - 1, and - 3 cm pressure heads. The long-term (10 years) study revealed that the bulk density (BD) of the soil under conservation agriculture (CA) practices (PB and ZT) was significantly (P = 0.05) lower than that in CT practices. The soil BD in the MCpSb cropping system was measured to be the lowest (1.24 g cm- 3 ) among all the cropping systems. The soil aggregate mean weight diameter (MWD) under PB and ZT was determined to be 31% and 27% higher than in the CT treatments. In tillage × cropping systems interactions, the highest MWD was observed in the PB×MWGg. The saturated and near-saturated hydraulic conductivity (K(h)) were estimated to have higher values in CA practices (PB and ZT) than in the CT treatments. In the case of cropping systems, the soil’s mean field saturated hydraulic conductivity was estimated to be significantly (P < 0.05) higher under the MWGg, MCpSb, and MMuGg than the MMSb. The present study indicates that conservation agriculture-based crop management with diversified maize-based rotation (MCpSb, MWGg, and MMuGg) could be promising alternatives to conventional tillage practices (CT). Among the cropping system choices, MWGg was more effective in improving the soil’s hydro-physical properties in the study area.
15 Taron, Avinandan; Majumder, A.; Bodach, Susanne; Agbefu, Dzifa. 2023. Public-private partnerships for the circular bio-economy in the Global South: lessons learned. Colombo, Sri Lanka: International Water Management Institute (IWMI). 50p. (Resource Recovery and Reuse Series 22) [doi: https://doi.org/10.5337/2023.205]
Resource recovery ; Resource management ; Reuse ; Circular economy ; Bioeconomy ; Public-private partnerships ; Developing countries ; Case studies ; Waste management ; Solid wastes ; Recycling ; Composting ; Organic wastes ; Organic fertilizers ; Bioenergy ; Biogas ; Briquettes ; Business models ; Markets ; Scaling up ; Appropriate technology ; Innovation ; Financial analysis ; Risk management ; Policies ; Regulations ; Legal frameworks ; Economic viability ; Feasibility studies ; Project design ; Costs ; Environmental assessment ; Social analysis ; Infrastructure ; Investment ; Marketing ; Small and medium enterprises ; Stakeholders ; Municipal authorities ; Procurement planning ; Contracts ; Sustainability ; Carbon credits ; Climate change mitigation ; Agricultural wastes ; Faecal sludge ; Soil quality ; Communities ; Awareness / Asia / Africa / India / Bangladesh / Ghana / Sri Lanka / Pakistan / Rwanda / Indonesia / Somanya / Bulta / Matara / Lahore / Pune / Kigali / Karnataka / New Delhi / Sakhipur / Kolkata / Temesi / Tema / Timarpur
(Location: IWMI HQ Call no: IWMI Record No: H052155)
(6.20 MB)
Processing biomass from different waste streams into marketable products such as organic fertilizer and bio-energy is increasingly realized through public-private partnerships (PPPs). In developing countries, the private sector can be expected to contribute technical skills, organizational capabilities and marketing expertise, and leverage capital inflow. In contrast, the public sector will provide the regulatory framework and help its enforcement, plan public investment, involve and educate stakeholders, and ensure waste supply.
This report reviews case studies that implemented PPPs in resource recovery and reuse (RRR) from waste streams with a particular focus on Asia and Africa, including those PPPs facilitated by the authors. Critical factors behind the success and failure of these cases are analyzed. The review indicates three key barriers to success: (i) waste-related bottlenecks, (ii) limited awareness about RRR products and their market(ing), and (iii) lack of proper institutional frameworks. Common shortfalls concern failure to meet commitments related to the quality and quantity of waste, missing understanding of the reuse market, etc. The report points out mitigation measures addressing possible challenges around appropriate technologies, finance and revenue streams, legal issues, as well as social and environmental concerns. It is required to establish close monitoring, appropriate procurement mechanisms and due diligence during the project preparation and pre-bid. If possible, such a PPP project should consider risk and commercial viability assessment as well as financial strategy planning (scaling).
Successful involvement of the private sector in the RRR market is critical to close the resource loop and safeguard human and environmental health, which is the overarching objective of sustainable waste management.
This report reviews case studies that implemented PPPs in resource recovery and reuse (RRR) from waste streams with a particular focus on Asia and Africa, including those PPPs facilitated by the authors. Critical factors behind the success and failure of these cases are analyzed. The review indicates three key barriers to success: (i) waste-related bottlenecks, (ii) limited awareness about RRR products and their market(ing), and (iii) lack of proper institutional frameworks. Common shortfalls concern failure to meet commitments related to the quality and quantity of waste, missing understanding of the reuse market, etc. The report points out mitigation measures addressing possible challenges around appropriate technologies, finance and revenue streams, legal issues, as well as social and environmental concerns. It is required to establish close monitoring, appropriate procurement mechanisms and due diligence during the project preparation and pre-bid. If possible, such a PPP project should consider risk and commercial viability assessment as well as financial strategy planning (scaling).
Successful involvement of the private sector in the RRR market is critical to close the resource loop and safeguard human and environmental health, which is the overarching objective of sustainable waste management.
16 Kumar, K.; Parihar, C. M.; Nayak, H. S.; Sena, Dipaka R.; Godara, S.; Dhakar, R.; Patra, K.; Sarkar, A.; Bharadwaj, S.; Ghasal, P. C.; Meena, A. L.; Reddy, K. S.; Das, T. K.; Jat, S. L.; Sharma, D. K.; Saharawat, Y. S.; Singh, U.; Jat, M. L.; Gathala, M. K. 2024. Modeling maize growth and nitrogen dynamics using CERES-Maize (DSSAT) under diverse nitrogen management options in a conservation agriculture-based maize-wheat system. Scientific Reports, 14:11743. [doi: https://doi.org/10.1038/s41598-024-61976-6]
Maize ; Plant growth ; Modelling ; Nitrogen ; Ammonia ; Volatilization ; Conservation agriculture ; Wheat ; Zero tillage ; Leaf area index ; Biomass ; Grain ; Crop yield ; Forecasting / India / New Delhi
(Location: IWMI HQ Call no: e-copy only Record No: H052860)
(2.40 MB) (2.40 MB)
Agricultural field experiments are costly and time-consuming, and often struggling to capture spatial and temporal variability. Mechanistic crop growth models offer a solution to understand intricate crop-soil-weather system, aiding farm-level management decisions throughout the growing season. The objective of this study was to calibrate and the Crop Environment Resource Synthesis CERES-Maize (DSSAT v 4.8) model to simulate crop growth, yield, and nitrogen dynamics in a long-term conservation agriculture (CA) based maize system. The model was also used to investigate the relationship between, temperature, nitrate and ammoniacal concentration in soil, and nitrogen uptake by the crop. Additionally, the study explored the impact of contrasting tillage practices and fertilizer nitrogen management options on maize yields. Using field data from 2019 and 2020, the DSSAT-CERES-Maize model was calibrated for plant growth stages, leaf area index-LAI, biomass, and yield. Data from 2021 were used to evaluate the model's performance. The treatments consisted of four nitrogen management options, viz., N0 (without nitrogen), N150 (150 kg N/ha through urea), GS (Green seeker-based urea application) and USG (urea super granules @150kg N/ha) in two contrasting tillage systems, i.e., CA-based zero tillage-ZT and conventional tillage-CT. The model accurately simulated maize cultivar’s anthesis and physiological maturity, with observed value falling within 5% of the model’s predictions range. LAI predictions by the model aligned well with measured values (RMSE 0.57 and nRMSE 10.33%), with a 14.6% prediction error at 60 days. The simulated grain yields generally matched with measured values (with prediction error ranging from 0 to 3%), except for plots without nitrogen application, where the model overestimated yields by 9–16%. The study also demonstrated the model's ability to accurately capture soil nitrate–N levels (RMSE 12.63 kg/ha and nRMSE 12.84%). The study concludes that the DSSAT-CERES-Maize model accurately assessed the impacts of tillage and nitrogen management practices on maize crop’s growth, yield, and soil nitrogen dynamics. By providing reliable simulations during the growing season, this modelling approach can facilitate better planning and more efficient resource management. Future research should focus on expanding the model's capabilities and improving its predictions further.
Powered by DB/Text WebPublisher, from
