Your search found 35 records
1 Tomar, O. S.; Minhas, P. S.; Dagar, J. C. 2005. Isabgol - Plantago ovata forsk: A potential crop for saline irrigation & moderate alkali soils. Karnal, India: Central Soil Salinity Research Institute. 17p. (CSSRI technical bulletin no.1/2005)
Medicinal plants ; Alkaline soils ; Soil salinity ; Climate ; Agroforestry ; Nitrogen fertilizers ; Irrigation scheduling / India
(Location: IWMI-HQ Call no: 631.7.2 G635 TOM Record No: H038814)
2 Wang, X. B.; Cai, D. X.; Hoogmoed, W. B.; Oenema, O.; Perdok, U. D. 2006. Potential effect of conservation tillage on sustainable land use: A review of global long-term studies. Pedosphere, 16(5):587-595.
(Location: IWMI-HQ Call no: P 7668 Record No: H039419)
3 Sirisena, D. N.; Wickramasinghe, D. B.; Silva, L. S. 2001. Recovery of fertilizer nitrogen applied to wetland paddy soils. Annals of the Sri Lanka Department of Agriculture, 3:231-236.
(Location: IWMI-HQ Call no: P 7671 Record No: H039440)
4 Mai, V. T.; Van Keulen, H.; Hoanh, Chu Thai; Hessel, R.; Roetter, R. P. 2007. Spatial dynamics of nitrogen in shallow groundwater under intensive farming in northern Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.119-135.
Groundwater ; Nitrogen fertilizers ; Leaching ; Simulation models ; Calibration ; Water pollution ; Vegetables ; Percolation ; GIS / Vietnam / Tam Duong District
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039976)
(3.22 MB)
5 Appleyard, S. 2006. Agriculture: control and protection. In Schmoll, O.; Howard, G.; Chilton, J.; Chorus, I. (Eds.). Protecting groundwater for health: Managing the quality of drinking-warter sources. London, UK: PUB IWA Publishing for WHO. pp.563-585.
Groundwater pollution ; Groundwater management ; Aquifers ; Pollution control ; Water supply ; Wells ; Crops ; Nitrogen fertilizers ; Pest control ; Irrigation management ; Drainage
(Location: IWMI HQ Call no: 613.287 G000 SCH Record No: H040332)
6 Nangia, Vinay; Gowda, P. H.; Mulla, D. J.; Sands, G. R. 2008. Water quality modeling of fertilizer management impacts on nitrate losses in tile drains at the field scale. Journal of Environmental Quality, 37(2):296-307.
Water quality ; Simulation models ; Calibration ; Fertilizer application ; Nitrogen fertilizers ; Soyabeans ; Maize ; Subsurface drainage / USA / Gulf of Mexico / Mississippi River / Minnesota
(Location: IWMI HQ Call no: IWMI 631.8 G430 NAN Record No: H040829)
Nitrate losses from subsurface tile drained row cropland in the Upper Midwest U.S. contribute to hypoxia in the Gulf of Mexico. Strategies are needed to reduce nitrate losses to the Mississippi River. This paper evaluates the effect of fertilizer rate and timing on nitrate losses in two (East and West) commercial row crop fields located in south-central Minnesota. The Agricultural Drainage and Pesticide Transport (ADAPT) model was calibrated and validated for monthly subsurface tile drain flow and nitrate losses for a period of 1999–2003. Good agreement was found between observed and predicted tile drain flow and nitrate losses during the calibration period, with Nash-Sutcliff e modeling efficiencies of 0.75 and 0.56, respectively. Better agreements were observed for the validation period. The calibrated model was then used to evaluate the effects of rate and timing of fertilizer application on nitrate losses with a 50-yr climatic record (1954–2003). Significant reductions in nitrate losses were predicted by reducing fertilizer application rates and changing timing. A 13% reduction in nitrate losses was predicted when fall fertilizer application rate was reduced from 180 to 123 kg/ha. A further 9% reduction in nitrate losses can be achieved when switching from fall to spring application. Larger reductions in nitrate losses would require changes in fertilizer rate and timing, as well as other practices such as changing tile drain spacings and/or depths, fall cover cropping, or conversion of crop land to pasture.
7 Noble, Andrew; Suzuki, S.; Soda, Wannipa; Ruaysoongnern, S.; Berthelsen, S. 2008. Soil acidification and carbon storage in fertilized pastures of Northeast Thailand. Geoderma, 144: 248–255.
Soil texture ; Soil properties ; Sandy soils ; Acidification ; Nitrogen fertilizers ; Carbon ; Pastures ; Feeds ; Andropogon gayanus ; Stylosanthes guianensis / Thailand
(Location: IWMI HQ Call no: 631.4 G750 NOB Record No: H040921)
8 Mai, V. T.; Van Keulen, H.; Hoanh, Chu Thai; Hessel, R. 2008. Spatial simulation of nitrogen leaching from intensive agriculture in northern Vietnam. In Proceedings of International Symposium on GeoInformatics for Spatial-Infrastructure Development in Earth and Allied Sciences (GIS-IDEAS), Hanoi, Vietnam, 4-6 December 2008. Wageningen, Netherlands: Wageningen UR Publication. pp.383-388.
Simulation models ; Calibration ; Nitrogen fertilizers ; Leaching ; Irrigated farming ; Groundwater ; Percolation ; Intensive farming ; Spatial distribution ; Vegetables ; Cabbages / Vietnam / Tam Duong District
(Location: IWMI HQ Call no: e-copy only Record No: H041856)
http://wgrass.media.osaka-cu.ac.jp/gisideas08/viewpaper.php?id=288
https://vlibrary.iwmi.org/pdf/H041856.pdf
https://vlibrary.iwmi.org/pdf/H041856.pdf
(0.21 MB)
9 Qadir, Manzoor. 2009. Turning environmental burdens into economic opportunities. ICARDA-IWMI Joint Program - Marginal-quality Water Resources and Salt-affected Soils, program update, October 2003 - March 2009. Colombo, Sri Lanka: International Water Management Institute (IWMI); Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA). 19p.
Water scarcity ; Water shortage ; Water quality ; Soil salinity ; Water resource management ; Irrigated farming ; Zero tillage ; Wastewater irrigation ; Water reuse ; Groundwater irrigation ; Nitrogen fertilizers ; Soil degradation ; Water productivity ; Livestock ; Development projects / Central Asia / Uzbekistan / Turkmenistan / Kazakhstan / Mediterranean countries / Middle East / Syria / Karkheh River Basin / Euphrates-Aleppo Basin / Qweik River
(Location: IWMI HQ Call no: IWMI 631.7.5 G000 QAD Record No: H042133)
http://www.icarda.org/docrep/Brochures/Turning_environmental.pdf
https://vlibrary.iwmi.org/pdf/H042133.pdf
https://vlibrary.iwmi.org/pdf/H042133.pdf
(1.42 MB)
10 Erkossa, Teklu; Teklewold, H. 2009. Agronomic and economic efficiency of manure and urea fertilizers use on vertisols in Ethiopian highlands. Agricultural Sciences in China, 8(3):352-360. [doi: https://doi.org/10.1016/S1671-2927(08)60219-9]
Vertisols ; Soil fertility ; Organic fertilizers ; Inorganic fertilizers ; Fertilizers ; Nitrogen fertilizers ; Crop production ; Legumes ; Cereals ; Straw ; Cropping systems ; Crop rotation ; Data analysis ; Economic analysis ; Yields ; Productivity ; Profitability / Ethiopia
(Location: IWMI HQ Call no: e-copy only Record No: H042151)
(0.22 MB)
Soil fertility depletion is among the major impediments to sustained agricultural productivity especially in the less developed countries because of limited application of fertilizers. Soil fertility maintenance requires a balanced application of inorganic and organic nutrient sources. This study was conducted on a Vertisol in Ethiopia to determine the optimum farm yard manure (M) and nitrogen (N) application rates for maximum return under cereal-pulse-cereal rotation system. The main and interaction effects of M and N significantly affected biomass, grain and straw yields of wheat (Triticum durum) and tef (Eragrostis tef), but the residual effect on chickpea (Cicer arietinum) was not significant. Application of 6 t M ha-1 and 30 kg N ha-1, gave the largest grain yield of both crops but a comparable result was obtained due to 3 t M ha-1 and 30 kg N ha-1. The economic analysis revealed that 6.85 t M ha-1 and 44 kg N ha-1 for wheat, and 4.53 t M ha-1 and 37 kg N ha-1 for tef were the economic optimum rates. The additional benefit obtained due to these rates was about 450 USD ha-1. Therefore, application of the economic optimum combination of both organic and inorganic sources of nitrogen is recommended for use on cereals in the cereal-legume-cereal rotation system.
11 Scherr, S. J.; Sthapit, S. 2009. Mitigating climate change through food and land use. Washington, D.C., USA: Worldwatch Institute. 50p. (Worldwatch Report 179)
Climate change ; Land use ; Greenhouse gases ; Carbon ; Methane ; Deforestation ; Habitats ; Organic fertilizers ; Nitrogen fertilizers ; Cropping systems ; Farming systems ; Livestock
(Location: IWMI HQ Call no: e-copy only Record No: H042175)
(1.18 MB)
12 Adamtey, Noah; Cofie, Olufunke; Ofosu-Budu, G. K.; Danso, S. K. A.; Forster, D. 2009. Production and storage of N-enriched co-compost. Waste Management, 29:2429-2436. [doi: https://doi.org/10.1016/j.wasman.2009.04.014]
Waste management ; Urban wastes ; Household wastes ; Solid wastes ; Composts ; Composting ; Production ; Techniques ; Fertilizers ; Excreta ; Urea ; Urban agriculture ; Inorganic fertilizers ; Nitrogen fertilizers ; Heavy metals ; Farmers ; Health hazards / Africa South of Sahara / West Africa / Ghana / Accra
(Location: IWMI HQ Call no: e-copy only Record No: H042259)
(0.62 MB)
Recovery of the organic fraction of municipal waste for peri-urban agriculture could contribute to the improvement of environmental sanitation and increase agricultural productivity in Sub-Saharan Africa. However, municipal waste co-compost (Co) has low nitrogen (N) content. Therefore, this study investigated the type and form of inorganic N fertiliser that is capable of improving the nitrogen content of Co and monitored the changes in the properties of this N-enriched product under storage. To attain 30,000 mg kg1 (3%) N content, different amounts of urea or ammonium sulphate were applied in various forms (dry, paste and liquid) to enrich Co. The product termed comlizer was stored and its moisture, pH, total nitrogen, NHþ4 -N, NO3 –N, and C/N ratio were monitored under ambient conditions for two years. In the first four months of storage, total N content of 50 kg Co + 3.26 kg urea (CoUD) increased from 31,333 to 54,000 mg kg1, and 50 kg Co + 7.14 kg (NH4)2SO4 (CoASD) from 35,333 to 52,000 mg kg1. At the end of two years of storage, the initial N content of CoUD and CoASD decreased by 47% and 24%, respectively. Based on these results, it is recommended that dry (NH4)2SO4 should be used in N enrichment of Co, and that the comlizer should be stored in sealed bags but not more than four months.
13 Richert, A.; Gensch, R.; Jonsson, H.; Stenstrom, T. A.; Dagerskog, L. 2010. Practical guidance on the use of urine in crop production. Stockholm, Sweden: Stockholm Environment Institute (SEI) 54p. (Stockholm Environment Institute, EcoSanRes Series, 2010-1)
Nitrogen fertilizers ; Liquid fertilizers ; Urine ; Crop production ; Guidelines ; Best practices ; Sanitation ; Risk management
(Location: IWMI HQ Call no: 631.84 G000 RIC Record No: H043158)
http://sei-international.org/mediamanager/documents/Publications/Air-land-water-resources/ecosan-urine-in-crops-100824%20web.pdf
https://vlibrary.iwmi.org/pdf/H043158.pdf
https://vlibrary.iwmi.org/pdf/H043158.pdf
(1.66 MB) (1.66 MB)
This book gives practical guidance on the use of urine in crop production as a vital component of sustainable crop production and sanitation systems. It also includes guidance on how to start activities that will facilitate the introduction of new fertilizers to the agricultural community. The handbook should help in establishing links between research and professionals interested in implementation of sustainable sanitation systems. It is easy to read and informative, with examples from case studies and hints on further reading for those interested.
14 Nangia, Vinay; Turral, Hugh; Molden, David. 2008. Increasing water productivity with improved N fertilizer management. Irrigation and Drainage Systems, 22:193-207. [doi: https://doi.org/10.1007/s10795-008-9051-9]
(Location: IWMI HQ Call no: PER Record No: H043214)
There is continuing debate about the role of water productivity and the potential to increase it in response to significantly increased water demand to meet the future needs for food—estimated to be roughly double that of today by 2050. The debate centers round the relative potential benefits of enhancing rainfed agriculture, improving irrigation and expanding areas of both. All expansion and intensification options will require significantly more water to be used, often in places where the ecosystem impacts of agriculture are already severe. Improvement in water productivity can result from improving the provision and management of the other factor inputs of crop production. There is considerable debate on the ability of other inputs—typically nitrogen—to substitute for water. This paper describes a set of simulations undertaken with well calibrated maize (Zea mays L.) crop model in Decision Support System for Agro-technology Transfer (DSSAT). The simulations investigate the response to nitrogen under rainfed conditions in Florida, and show that neither the transpiration ratio nor the harvest index are constant in practice, and that fertilizer use can enhance water productivity, even in quite high yield conditions and that the transpiration ratio can be increased by N fertilizer application at low levels of crop water use.
15 Qadir, Manzoor; Wichelns, Dennis; Oster, J.; Jacobsen, S. -E.; Basra, S. M. A.; Choukr-Allah, R. (Eds.) 2010. Sustainable management of saline waters and salt-affected soils for agriculture: proceedings of the Second Bridging Workshop, Aleppo, Syria, 15-18 November 2009. Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA); Colombo, Sri Lanka: International Water Management Institute (IWMI). 106p.
Water quality ; Salinity ; Irrigation water ; Soil salinity ; Electrical conductivity ; Fodder ; Wheat ; Nitrogen fertilizers ; Waste land ; Wastewater irrigation ; Water scarcity ; Arid zones / Uzbekistan / Syria / Sudan / Palestine / Khorezm Region / Aleppo Region
(Location: IWMI HQ Call no: IWMI 631.7.5 GG30 QAD Record No: H043449)
http://www.icarda.org/wli/pdfs/Books/ProceedingsOfSecondBridgingWorkshopBook.pdf
https://vlibrary.iwmi.org/pdf/H043449.pdf
https://vlibrary.iwmi.org/pdf/H043449.pdf
(0.91 MB) (3.08MB)
16 Qadir, Manzoor; Wichelns, Dennis; Oster, J.; Jacobsen, S. -E.; Basra, S. M. A.; Choukr-Allah, R. (Eds.) 2010. Sustainable management of saline waters and salt-affected soils for agriculture: proceedings of the Second Bridging Workshop, Aleppo, Syria, 15-18 November 2009. Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA); Colombo, Sri Lanka: International Water Management Institute (IWMI). 106p.
Water quality ; Salinity ; Irrigation water ; Soil salinity ; Electrical conductivity ; Fodder ; Wheat ; Nitrogen fertilizers ; Waste land ; Wastewater irrigation ; Water scarcity ; Arid zones / Uzbekistan / Syria / Sudan / Palestine / Khorezm Region / Aleppo Region
(Location: IWMI HQ Call no: IWMI 631.7.5 GG30 QAD c2 Record No: H043461)
http://www.icarda.org/wli/pdfs/Books/ProceedingsOfSecondBridgingWorkshopBook.pdf
https://vlibrary.iwmi.org/pdf/H043461.pdf
https://vlibrary.iwmi.org/pdf/H043461.pdf
(3.09 MB) (3.08MB)
17 Kropff, M. J.; Teng, P. S.; Aggarwal, P. K.; Bouma, J.; Bouman, B. A. M.; Jones, J. W.; Van Laar, H. H. (Eds.) 1997. Applications of systems approaches at the field level: proceedings of the Second International Symposium on Systems Approaches for Agricultural Development, International Rice Research Institute (IRRI), Los Banos, Philippines, 6-8 December 1995. Vol 2. Dordrecht, Netherlands: Kluwer. 465p. (Systems Approaches for Sustainable Agricultural Development 6)
Plant breeding ; Irrigated rice ; Nitrogen fertilizers ; Pests ; Maize ; Simulation models / Africa / Argentina
(Location: IWMI HQ Call no: 630.7 G000 LAN Record No: H044412)
(0.35 MB)
18 Mikunthan, T.; Vithanage, M.; Pathmarajah, S.; Arasalingam, Sutharsiny; Ariyaratne, Ranjith; Manthrithilake, Herath. 2013. Hydrogeochemical characterization of Jaffna’s aquifer systems in Sri Lanka. Colombo, Sri Lanka: International Water Management Institute (IWMI). 69p. [doi: https://doi.org/10.5337/2014.001]
Hydrology ; Geochemistry ; Aquifers ; Groundwater recharge ; Water quality ; Water levels ; Nitrogen fertilizers ; Contamination ; Drinking water ; Evapotranspiration ; Wells ; Soils ; Land use ; Rainfall patterns / Sri Lanka / Jaffna Peninsula / Chunnakam
(Location: IWMI HQ Call no: IWMI Record No: H046389)
(7 MB)
19 Sharma, Bharat; Molden, D.; Cook, Simon. 2015. Water use efficiency in agriculture: measurement, current situation and trends. In Drechsel, Pay ; Heffer, P.; Magen, H.; Mikkelsen, R.; Wichelns, D. (Eds.). Managing water and fertilizer for sustainable agricultural intensification. Paris, France: International Fertilizer Industry Association (IFA) Colombo, Sri Lanka: International Water Management Institute (IWMI) Georgia, USA: International Plant Nutrition Institute (IPNI) Horgen, Switzerland: International Potash Institute (IPI). pp.39-64.
Water use efficiency ; Water productivity ; Agricultural population ; Crops ; Measurement ; Nitrogen fertilizers
(Location: IWMI HQ Call no: e-copy only Record No: H046807)
(1.43 MB)
20 Drechsel, Pay; Heffer, P.; Magen, H.; Mikkelsen, R.; Wichelns, D. (Eds.) 2015. Managing water and fertilizer for sustainable agricultural intensification. 1st ed. Paris, France: International Fertilizer Industry Association (IFA); Colombo, Sri Lanka: International Water Management Institute (IWMI); Georgia, USA: International Plant Nutrition Institute (IPNI); Horgen, Switzerland: International Potash Institute (IPI). 270p.
Water management ; Water productivity ; Sustainable agriculture ; Irrigation systems ; Irrigated farming ; Intensification ; Nitrogen fertilizers ; Nutrients ; Soil fertility ; Food security ; Ecosystem services ; Water use efficiency ; Water supply ; Crop yield ; Humid climate zones ; Subhumid zones ; Rainfed farming ; Wastewater treatment ; Wastewater irrigation ; Biochemical compounds ; Evapotranspiration ; Arid zones / Central Asia / Africa / India / China / USA / Canada / Israeli
(Location: IWMI HQ Call no: IWMI Record No: H046805)
(13.13 MB)
Powered by DB/Text WebPublisher, from
