Your search found 28 records
1 Mermoud, A.; Tamini, T. D.; Yacouba, H. 2005. Impacts of different irrigation schedules on the water balance components of an onion crop in a semi-arid zone. Agricultural Water Management, 77(1-3):282-295.
(Location: IWMI-HQ Call no: PER Record No: H037436)
2 Kadayifci, A.; Tuylu, G. ?.; Ucar, Y.; Cakmak, B. 2005. Crop water use of onion (Allium cepa L.) in Turkey. Agricultural Water Management, 72(1):59-68.
Irrigation efficiency ; Water use efficiency ; Crop production ; Onions ; Evapotranspiration ; Water deficit / Turkey
(Location: IWMI-HQ Call no: PER Record No: H036794)
3 Rajput, T. B. S.; Patel, N. 2006. Water and nitrate movement in drip-irrigated onion under fertigation and irrigation treatments. Agricultural Water Management, 79(3):293-311.
(Location: IWMI-HQ Call no: PER Record No: H038296)
4 Wijesekara, R. S.; Mohrouf, A. R. M.; Mowjood, M. I. M. 2005. Assessment of flood irrigation and sprinkler irrigation practices by farmers for red onion (Allium cepa L) in Moneragala District. Annals of the Sri Lanka Department of Agriculture, 7:327-335.
Flood irrigation ; Sprinkler irrigation ; Irrigation practices ; Onions ; Water use efficiency ; Assessment ; Costs / Sri Lanka / Moneragala District
(Location: IWMI-HQ Call no: P 7637 Record No: H039356)
5 Lesly, W. D.; Malaviarachchi, m. a. p. w. K.; Jayawardena, S. N.; Kumararathne, M. J. M. P. 2002. Farmer management practices on the productivity of big onion cultivation in the dry zone of Sri Lanka. Annals of the Sri Lanka Department of Agriculture, 4:385-392.
(Location: IWMI-HQ Call no: P 7639 Record No: H039366)
6 Gleason, J. E.; Tittagalla, N. P. 1992. Report on cultivation census: Mahaweli System B, Yala 1991. Mahaweli Agricultural and Rural Development (MARD) Project. Pimburattewa, Sri Lanka: Ministry of Mahaweli Development. Mahaweli Authority of Sri Lanka. 68p.
Cultivation ; Censuses ; Diversification ; Crop production ; Farm income ; Irrigated land ; Farmers ; Onions ; Chillies ; Growth period ; Projects / Sri Lanka / Mahaweli System B / Mahaweli Project / Pimburattewa
(Location: IWMI HQ Call no: 310.723 G744 GLE Record No: H046314)
(0.07 MB)
7 Chandrasiri, J. K. M. D.; Bamunuarachchi, B. A. D. S. 2013. Cultivation credit for chillies, big onions and potatoes: an assessment of credit sources and their issues. Colombo, Sri Lanka: Hector Kobbekaduwa Agrarian Research and Training Institute (HARTI). 49p. (HARTI Research Report 152)
Agricultural credit ; Financing ; Credit policies ; Cooperative banks ; Cropping patterns ; Field crops ; Potatoes ; Chillies ; Onions ; Smallholders ; Socioeconomic environment ; Agricultural manpower ; Farm income / Sri Lanka / Nuwara Eliya / Badulla / Matale / Anuradhapura / Puttalam
(Location: IWMI HQ Call no: 332.71 G744 CHA Record No: H046395)
(0.37 MB)
8 Samantha, N. P. G.; Vidanapathirana, R.; Rambukwella, R. 2013. Issues in big onion seed production and marketing. Colombo, Sri Lanka: Hector Kobbekaduwa Agrarian Research and Training Institute (HARTI). 45p. (HARTI Research Report 150)
Seed production ; Onions ; Marketing ; Seed industry ; Seed storage ; Production costs ; Income ; Farmers ; Socioeconomic environment ; Surveys / Sri Lanka / Matale / Anuradhapura / Galewala / Dambulla / Kimbissa / Ipalogama / Maradankadawala
(Location: IWMI HQ Call no: 631.52 G744 SAM Record No: H046413)
(0.32 MB)
9 Hathurusinghe, C. P.; Rambukwella, R.; Vidanapathirana, R.; Somarathne, T. G. 2012. Production and marketing of other field crops: a review. Colombo, Sri Lanka: Hector Kobbekaduwa Agrarian Research and Training Institute (HARTI). 169p. (HARTI Research Report 144)
Field crops ; Crop production ; Cropping patterns ; Market prices ; Producer prices ; Food security ; Onions ; Chillies ; Potatoes ; Maize ; Farmers ; Households ; Income / Sri Lanka
(Location: IWMI HQ Call no: 381 G744 HAT Record No: H046415)
(0.32 MB)
10 Karlberg, L.; Garg, K. K.; Barron, J.; Wani, S. P. 2015. Impacts of agricultural water interventions on farm income: an example from the Kothapally Watershed, India. Agricultural Systems, 136:30-38. [doi: https://doi.org/10.1016/j.agsy.2015.02.002]
Agriculture ; Water management ; Farm income ; Watersheds ; Hydrology ; Models ; Supplemental irrigation ; Cropping systems ; Cotton ; Sorghum ; Onions ; Soil depth ; Soil management ; Farmers ; Living standards ; Rain / India / Andhra Pradesh / Kothapally Watershed
(Location: IWMI HQ Call no: e-copy only Record No: H047009)
(2.52 MB)
Agricultural water interventions (AWI), e.g. in-situ soil and water conservation strategies, irrigation, and damming of rivers to increase groundwater recharge, have been suggested as important strategies to improve yields in tropical agriculture. Although the biophysical implications of AWIs have been well investigated, the coupling between the biophysical changes and the economic implications thereof is less well understood. In this study we translate the results from a hydrological model, SWAT, on crop yields for different cropping systems with and without agricultural water interventions, to hypothetical farm incomes for a watershed, Kothapally, located in Andhra Pradesh, India. It was found that on average, AWI signifi- cantly improved farm incomes by enabling the cultivation of a high value crop during the monsoon season (cotton), supplementary irrigated to bridge dry spells and replacing a traditional crop (sorghum), and also by enhancing the capacity to produce dry season, fully irrigated vegetable crops, in this case exemplified by onion. AWI combined with cotton resulted in more than a doubling of farm incomes compared to traditional sorghum-based systems without AWI during normal and wet years (i.e. for 75% of the years). Interestingly, we observed that the difference between the AWI system and the no intervention system was larger during years of high average rainfall compared to dry years. It was also found that access to irrigation was more important for farm income than crop choice and AWI per se, and thus farms with access irrigation benefitted more from AWI compared to farmers lacking access to irrigation. In conclusion, we suggest that in order to assess equity aspects in terms of farm income generation following the implementation of an AWI project, there is a need for income analyses at the farm level, since income estimates at the watershed level may mask important differences in economic benefits between farms.
11 Ali, M. Y. 2014. Farming systems of Bangladesh: poverty escape pathways and livelihoods improvement. Dhaka, Bangladesh: Muktochinta Prokashona. 103p.
Farming systems ; Traditional farming ; Living standards ; Poverty ; Agricultural production ; Growth period ; Crop yield ; Rice ; Wheat ; Vegetables ; Potatoes ; Garlic ; Onions ; Grain legumes ; Fisheries ; Shrimp culture ; Coastal area ; Highlands / Bangladesh
(Location: IWMI HQ Call no: 630 G584 ALI Record No: H047181)
(0.35 MB)
12 Tesema, M.; Schmitter, Petra; Nakawuka, Prossie; Tilahun, S. A.; Steenhuis, T.; Langan, Simon. 2016. Evaluating irrigation technologies to improve crop and water productivity of onion in Dangishta watershed during the dry monsoon phase. Paper presented at the International Conference of the Advancement of Science and Technology, Bahir Dar, Ethiopia, 17-18 July 2016. 10p.
Crop production ; Crop management ; Water productivity ; Water use efficiency ; Water conservation ; Water management ; Onions ; Monsoon climate ; Dry season ; Watershed services ; Wet cultivation ; Soil moisture ; Soil water balance ; Rhizosphere ; Rain ; Agriculture ; Fertilizer application / Ethiopia / Dangishta Watershed
(Location: IWMI HQ Call no: e-copy only Record No: H047635)
(611 KB)
13 Getnet, Kindie; Haileslasseie, Amare; Dessalegne, Y.; Hagos, Fitsum; Gebregziabher, Gebrehaweria. 2016. On the profitability of irrigated fodder production: comparative evidence from smallholders in Koga irrigation scheme, Ethiopia. Animal Production Science, 57(9):1962-1974. [doi: https://doi.org/10.1071/AN15651]
Irrigation schemes ; Irrigated farming ; Farm income ; Profitability ; Investment ; Smallholders ; Stochastic processes ; Livestock ; Risk management ; Grasslands ; Chloris gayana ; Crop production ; Feed crops ; Onions ; Tomatoes ; Wheat ; Barley / Ethiopia / Koga Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H047709)
Irrigated fodder production can be vitalised as a useful strategy to sustainably intensify subsistence livestock production owned and managed by smallholders and to diversify farm income through linkages to commercial livestock systems. However, uncertainty about the production and market environment of such a non-traditional commodity can be a major hindrance against commercialisation and scaling out of irrigated fodder production. This makes ex-ante analysis of profit portfolio and its determinants necessary in order to improve farmers’ investment and risk management decisions. Using a stochastic approach to farm profit analysis to account for business uncertainty, this paper simulated and compared the level and distribution of profit that smallholders in Koga irrigation scheme (Ethiopia) can generate from irrigated Rhodes grass seed and from traditional irrigated crops. The finding shows the absolute and comparative profitability of irrigated Rhodes grass seed. Though 0.19 times less profitable than irrigated onion, irrigated Rhodes grass seed is 4 times, 1.27 times, and 1.25 times more profitable than irrigated barley, irrigated wheat, and irrigated tomato, respectively. Profit from the commodity is robust to adverse business conditions such as yield reduction, cost increase, and price reduction, assuring optimism about positive financial returns from investments to expand production. Long-term business viability can be improved and farm income further stabilised through interventions targeted at fodder agronomy to enhance crop yield and at value chain development to improve market linkages and output price.
14 Assefa, S.; Biazin, B.; Muluneh, A.; Yimer, F.; Haileslassie, Amare. 2016. Rainwater harvesting for supplemental irrigation of onions in the southern dry lands of Ethiopia. Agricultural Water Management, 178:325-334. [doi: https://doi.org/10.1016/j.agwat.2016.10.012]
Rainwater ; Water harvesting ; Irrigation systems ; Supplemental irrigation ; Vegetables ; Onions ; Arid zones ; Dry season ; Wet season ; Dry spells ; Water productivity ; Water supply ; Water requirements ; Irrigation water ; Soil properties ; Runoff ; Planting ; Rainfed farming / Africa South of Sahara / Ethiopia / Halaba District
(Location: IWMI HQ Call no: e-copy only Record No: H047784)
15 Sugden, Fraser; Punch, S. 2016. Changing aspirations, education, and migration: young people’s declining agroecological knowledge in rural Asia. In Nicola, A.; Natascha, K.; Tracey, S. (Eds.). Geographies of global issues: change and threat. Dordrecht, Netherlands: Springer. pp.483-499. (Geographies of Children and Young People 8)
Ecosystem services ; Water harvesting ; Water requirements ; Water quality ; Watersheds ; Water use ; Water yield ; Water productivity ; Intensification ; Upstream ; Downstream ; Stream flow ; Climate change ; Crop yield ; Irrigation water ; Ponds ; Sediment ; Agricultural production ; Dry season ; Onions ; Sustainable agriculture ; Ecological factors ; Decision support systems ; Soils ; Assessment ; Supplemental irrigation ; Nutrients ; Food security ; Food production ; Calibration ; River basins ; Case studies / Ethiopia / Africa South of Sahara / Lake Tana Basin
(Location: IWMI HQ Call no: e-copy only Record No: H047886)
This chapter explores the interrelationships between economic change and environmental issues, by showing how aspiration, education, and migration are variously connected to a loss of agroecological knowledges for rural young people. It reviews a series of case studies from Vietnam, India, and China on the implications for rural youth of changed aspirations and ecological and economic stress. The economic and cultural pressures of globalization mean young people increasingly aspire for a life outside of agrarian- and natural resource-based livelihoods. A consequence of this change has been the migration of young people to urban centers and a drive for families to invest in education. Thishasfar reaching consequences for communities.Those who stay behind face an increased labor burden, and economic pressures can be aggravated when the promise of improved livelihoods outside is notrealized. The chapter also points to the negative implications of these changed aspirations on the intergenerational transfer of agroecological knowledge. Thus, in relation to issues of environment and development, the chapter considers why this complex set of relationships between aspiration, education, and migration is important in the context of children and young people’s lives.
16 Dile, Y. T.; Karlberg, L.; Daggupati, P.; Srinivasan, R.; Wiberg, D.; Rockstrom, J. 2016. Assessing the implications of water harvesting intensification on upstream–downstream ecosystem services: a case study in the Lake Tana basin. Science of The Total Environment, 542:22-35. [doi: https://doi.org/10.1016/j.scitotenv.2015.10.065]
Water harvesting ; Water requirements ; Water quality ; Water use ; Intensification ; Stream flow ; Upstream ; Downstream ; Ecosystem services ; Crop yield ; Supplemental irrigation ; Irrigation water ; Sediment ; Sustainable agriculture ; Intensification ; Ecology ; Decision support systems ; Ponds ; Watersheds ; Soils ; Assessment ; Nutrient availability ; Onions ; Food security ; Food production ; Economic aspects ; Case studies / Ethiopia / Africa South of Sahara / Lake Tana Basin
(Location: IWMI HQ Call no: e-copy only Record No: H047928)
Water harvesting systems have improved productivity in various regions in sub-Saharan Africa. Similarly, they can help retain water in landscapes, build resilience against droughts and dry spells, and thereby contribute to sustainable agricultural intensification. However, there is no strong empirical evidence that shows the effects of intensification of water harvesting on upstream–downstream social–ecological systems at a landscape scale. In this paper we develop a decision support system (DSS) for locating and sizing water harvesting ponds in a hydrological model, which enables assessments of water harvesting intensification on upstream–downstream ecosystem services in meso-scale watersheds. The DSS was used with the Soil and Water Assessment Tool (SWAT) for a case-study area located in the Lake Tana basin, Ethiopia. We found that supplementary irrigation in combination with nutrient application increased simulated teff (Eragrostis tef, staple crop in Ethiopia) production up to three times, compared to the current practice. Moreover, after supplemental irrigation of teff, the excess water was used for dry season onion production of 7.66 t/ha (median). Water harvesting, therefore, can play an important role in increasing local- to regional-scale food security through increased and more stable food production and generation of extra income from the sale of cash crops. The annual total irrigation water consumption was ~ 4%–30% of the annual water yield from the entire watershed. In general, water harvesting resulted in a reduction in peak flows and an increase in low flows. Water harvesting substantially reduced sediment yield leaving the watershed. The beneficiaries of water harvesting ponds may benefit from increases in agricultural production. The downstream social–ecological systems may benefit from reduced food prices, reduced flooding damages, and reduced sediment influxes, as well as enhancements in low flows and water quality. The benefits of water harvesting warrant economic feasibility studies and detailed analyses of its ecological impacts.
17 Timsina, K. P.; Bastakoti, Ram C.; Shivakoti, G. P. 2016. Achieving strategic fit in onion seed supply chain. Journal of Agribusiness in Developing and Emerging Economies, 6(2):127-149. [doi: https://doi.org/10.1108/JADEE-03-2014-0012]
Supply chain ; Onions ; Seed production ; Marketing ; Retail marketing ; Production costs ; Rural economics ; Cooperative marketing ; Vegetables ; Farmers ; Postharvest control ; Economic development / Nepal
(Location: IWMI HQ Call no: e-copy only Record No: H048039)
Findings: Result revealed that the market actors of supply chain are taking significant benefit of value addition due to more investment in value creation. Vertical coordination is completely absent and the existence of horizontal coordination is in fragile form. The functional strategies in the upstream as well as the market side are not properly matching with the preference of the downstream actors of supply chain. It is suggested that the supply chain activities should work with different functional strategies such as proper drying and storage of seed and production of preferred varieties to satisfy the need of end consumers.
18 Kifle, M.; Gebremicael, T. G.; Girmay, A.; Gebremedihin, T. 2017. Effect of surge flow and alternate irrigation on the irrigation efficiency and water productivity of onion in the semi-arid areas of North Ethiopia. Agricultural Water Management, 187:69-76. [doi: https://doi.org/10.1016/j.agwat.2017.03.018]
Irrigation water ; Irrigation efficiency ; Surge irrigation ; Water productivity ; Water use efficiency ; Crop yield ; Onions ; Water requirements ; Water measurement ; Performance indexes ; Irrigation schemes ; Irrigation scheduling ; Runoff water ; Discharges ; Soil moisture ; Semiarid zones / Northern Ethiopia / Mainigus Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H048145)
(0.90 MB)
The study was conducted in the semi-arid areas of northern Ethiopia with the objective of evaluating the effect of surge flow and alternate irrigation on irrigation performance indicators, water use efficiency and crop yield. The experiment consists of two factors, irrigation systems (alternate furrow (Af) and conventional furrow (CF)) and irrigation flow methods (continuous (C), Surge 1 (S1), Surge 2 (S2), and Surge 3 (S3)). Eight treatment combinations replicated three times were arranged in a factorial randomized complete block design. Onion crop was used as indicator crop for the experiment because of its dominant and cash crop in the region. The result of this experiment indicated that the interaction effect of the irrigation system and irrigation flow methods did not show statistically significant difference on the performance indicators, crop yield and water use efficiency. The irrigation system (Af and CF) as a factor has not significant effect on yield of onion. However, the irrigation flow methods (C, S1, S2 and S3) were significantly affected the irrigation performance indicators (application efficiency, distribution uniformity, deep percolation and tail water runoff losses) and likewise, irrigation water use efficiency and yield of onion were significantly different. Higher crop yield (13208 kg/ha), water use efficiency (1.96–2.55 kg/m3), application efficiency (52.9–58.7%) and distribution uniformity (81.4–86.2%) were obtained from both surge flow and alternate irrigation as compared to continuous flow and conventional furrow irrigation (every furrow water application) which was recorded less 10142 kg/ha, 1.36–1.65 kg/m3, 44–54.7%, 67.1–79.6%, respectively. The result of this study explicitly showed that demonstration of these irrigation methods can enhance the poor water management practices in the semi-arid areas of Ethiopia and elsewhere in the world with limited water resources and similar soil characteristics. The authors of this paper recommend the farmers, irrigation experts, water resources managers and decision makers in the region to apply those techniques for improving water use efficiency.
19 Taye, B. M.; Schmitter, Petra; Tilahun, S. A. 2017. Evaluating crop yield and water productivity of onion and potato through the use of wetting front detectors by water user associations in Koga irrigation Scheme, Ethiopia. Paper presented at the International Symposium on Sustainable Water Resource Development, Arba Minch, Ethiopia, 23-24 June 2017. 12p.
Water productivity ; Water allocation ; Water availability ; Irrigation water ; Crop yield ; Onions ; Potatoes ; Water user associations ; Irrigation schemes ; Wetting front ; Farmers ; Cultivated land / Africa / Ethiopia / Koga Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H048335)
Whilst irrigation schemes and technologies are extensively promoted in Africa, proper water management guidance for farmers is often lacking. Improper on-farm irrigation management practices lead to poor water distribution, non-uniform crop growth, and disputes in irrigation schemes due to unequal water allocation. Hence, the objective of the study was evaluating crop yield and water productivity of onion and potato through the use of wetting front detectors by water user association. In Koga irrigation scheme, there are 11 night storage, which irrigate 12 blocks (7000 ha). From those three blocks (Tagel, Adibera and Chihona blocks) were selected. From each block two water users association (WUA) have been selected and training on how to use the Wetting front detector (WFD) was given: one WUA grew onion while another one cultivated potato. For onion 2.04 ha of land were managed by 9 WFD and 0.82ha were managed by farmer’s own irrigation system. For potato 1.68 ha of land were managed by 10 WFD and 0. 42 ha of land were managed by farmers own irrigation system. In this study a total of 43 farmers irrigated using WFD while 13 farmers were irrigating based on their traditional knowledge. During installation the furrow length for onion was 5m and for potato 20m. The WFD was placed at ¾ of the furrow length from the entrance of the furrow. The shallow detector installed at 1/3 of the root zone (20 cm in this case) and the deep detector installed at 2/3 of the root zone (40 cm). Potato fields that were irrigated based on WFD response received on average 43% less water compared to control fields (i.e. 431mm instead of 753mm) (p<0.05). This resulted in a significant yield increase of 6 % (p<0.05) in the WFD plots. Similarly, for onion a reduction in irrigation depth of 25% was obtained when farmers were guided by WFD (i.e. 504 mm instead of 676mm (p<0.05). While yield increased in the WFD fields by 4%, this was not significant. At scheme level, if all fields were onion guided by WFD, 1509 ha additional could be irrigated. Similarly if all fields were potato guided by WFD, additional land to be irrigated could be 2966 ha. This study has shown that available water in dams can irrigate more land by using on farm water management technologies.
20 Taye, B. M.; Schmitter, Petra; Tilahun, S. A. 2017. Evaluating crop yield and water productivity of onion and potato through the use of wetting front detectors by water user associations in Koga irrigation Scheme, Ethiopia. Paper presented at the Ethoipian Institute of Water Resource Annual Research Symposium, Addis Ababa, Ethiopia, 27 June 2017. 12p.
Water productivity ; Water allocation ; Water availability ; Irrigation water ; Crop yield ; Onions ; Potatoes ; Water user associations ; Irrigation schemes ; Wetting front ; Farmers ; Cultivated land / Africa / Ethiopia / Koga Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H048339)
Whilst irrigation schemes and technologies are extensively promoted in Africa, proper water management guidance for farmers is often lacking. Improper on-farm irrigation management practices lead to poor water distribution, non-uniform crop growth, and disputes in irrigation schemes due to unequal water allocation. Hence, the objective of the study was evaluating crop yield and water productivity of onion and potato through the use of wetting front detectors by water user association. In Koga irrigation scheme, there are 11 night storage, which irrigate 12 blocks (7000 ha). From those three blocks (Tagel, Adibera and Chihona blocks) were selected. From each block two water users association (WUA) have been selected and training on how to use the Wetting front detector (WFD) was given: one WUA grew onion while another one cultivated potato. For onion 2.04 ha of land were managed by 9 WFD and 0.82ha were managed by farmer’s own irrigation system. For potato 1.68 ha of land were managed by 10 WFD and 0. 42 ha of land were managed by farmers own irrigation system. In this study a total of 43 farmers irrigated using WFD while 13 farmers were irrigating based on their traditional knowledge. During installation the furrow length for onion was 5m and for potato 20m. The WFD was placed at ¾ of the furrow length from the entrance of the furrow. The shallow detector installed at 1/3 of the root zone (20 cm in this case) and the deep detector installed at 2/3 of the root zone (40 cm). Potato fields that were irrigated based on WFD response received on average 43% less water compared to control fields (i.e. 431mm instead of 753mm) (p<0.05). This resulted in a significant yield increase of 6 % (p<0.05) in the WFD plots. Similarly, for onion a reduction in irrigation depth of 25% was obtained when farmers were guided by WFD (i.e. 504 mm instead of 676mm (p<0.05). While yield increased in the WFD fields by 4%, this was not significant. At scheme level, if all fields were onion guided by WFD, 1509 ha additional could be irrigated. Similarly if all fields were potato guided by WFD, additional land to be irrigated could be 2966 ha. This study has shown that available water in dams can irrigate more land by using on farm water management technologies.
Powered by DB/Text WebPublisher, from
