Your search found 10 records
1 Kijne, J. W.; Prathapar, S. A.; Woperis, M. C. S.; Sahrawat, K. L.. 1998. How to manage salinity in irrigated lands: a selective review with particular reference to irrigation in developing countries. Colombo, Sri Lanka: International Irrigation Management Institute (IIMI). vii, 33p. (SWIM paper 2) [doi: https://doi.org/10.3910/2009.367]
Irrigation management ; Irrigable land ; Soil salinity ; Water use efficiency ; Soil degradation ; Irrigated farming ; Policy making ; Developing countries
(Location: IWMI-HQ Call no: IWMI 631.7.5 G000 KIJ Record No: H009257)
This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and increasing water productivity; developing a better understanding of present patterns of water use and impacts of interventions; improving communication among professionals and communication to non-water professionals; and improving the rationale for allocation of water among uses. It is expected that with further application, these water accounting concepts will evolve into a robust, supporting methodology for water basin analysis.
2 Olaleye, A. O.; Ogunkunle, A. O.; Sahrawat, K. L.; Osiname, O. A.; Ayanlaja, S. A. 2002. Suitability evaluation of selected wetland soils in Nigeria for rainfed rice cultivation. Tropicultura, 20(3):97-103.
(Location: IWMI-HQ Call no: P 6294 Record No: H032040)
3 Olaleye, A. O.; Ogunkunle, A. O.; Sahrawat, K. L.; Osiname, O. A.; Ayanlaja, S. A. 2002. Suitability evaluation of selected wetlands soils in Nigeria for rainfed rice cultivation. Tropicultura, 20(3):97-103.
(Location: IWMI-HQ Call no: P 6512 Record No: H032763)
4 Rego, T. J.; Wani, S. P.; Sahrawat, K. L.; Pardhasaradhi, G. 2005. Macro-benefits from boron, zinc and sulfur application in Indian SAT: a step for grey to green revolution in agriculture. Andhra Pradesh, India; Manila, Philippines; Mumbai, India: ICRISAT; ADB; Sir Dorabji Tata Trust. 20p. (Global Theme on Agroecosystems Report 16)
Watershed management ; Soil properties ; Soil fertility ; Crop production / India / Andhra Pradesh / Madhya Pradesh / Rajasthan
(Location: IWMI-HQ Call no: 333.91 G635 REG Record No: H037362)
5 Sahrawat, K. L.; Murugappan, V.; Padma Raju, A. 2006. Soil and water quality issues vis-a-vis agricultural management practices in Deccan Plateau. In Indian Society of Soil Science. International Conference on Soil, Water and Environmental Quality: Issues and Strategies, Proceedings, New Delhi, India, 28 January – 1 February 2005. New Delhi, India: Indian Society of Soil Science. pp.173-183.
(Location: IWMI-HQ Call no: 333.91 G635 IND Record No: H038936)
6 Qadir, Manzoor; Oster, J. D.; Schubert, S.; Noble, Andrew; Sahrawat, K. L.. 2007. Phytoremediation of sodic and saline-sodic soils. Advances in Agronomy [ISI] [IF 3.114], 96:197-247. [doi: https://doi.org/10.1016/S0065-2113(07)96006-X]
Bioremediation ; Soil management ; Sodic soils ; Soil salinity ; Soil properties ; Crop production ; Soil degradation ; Soil conservation ; Experiments ; History ; Soil-water-plant-relationships
(Location: IWMI HQ Call no: IWMI 631.4 G000 QAD Record No: H040552)
http://www.uni-giessen.de/plant-nutrition/Publ2007/Adv+Agron+2007.pdf
https://vlibrary.iwmi.org/pdf/H040552.pdf
https://vlibrary.iwmi.org/pdf/H040552.pdf
Sodicity-induced soil degradation is a major environmental constraint with severe negative impacts on agricultural productivity and sustainability in arid and semiarid regions. As an important category of salt-affected soils, sodic soils are characterized by excess levels of sodium ions (Naþ) in the soil solution phase as well as on the cation exchange complex, exhibiting unique structural problems as a result of certain physical processes (slaking, swelling, and dispersion of clay) and specific conditions (surface crusting and hardsetting). Saline-sodic soils, another category of salt-affected soils, are generally grouped with sodic soils because of several common properties and management approaches. Sodic and saline-sodic soils occur within the boundaries of at least 75 countries, and their extent has increased steadily in several major irrigation schemes throughout the world. The use of these soils for crop production is on the increase as they are a valuable resource that cannot be neglected, especially in areas where significant investments have already been made in irrigation infrastructure. It is imperative to find ways to improve sodic and saline-sodic soils to ensure that they are able to support highly productive land-use systems to meet the challenges of global food security. Nearly a century-old record reveals amelioration of sodic soils through the provision of a readily available source of calcium (Ca2þ) to replace excess Naþ on the cation exchange complex; the displaced Naþ subject to leaching from the root zone through the application of excess irrigation water in the presence of a drainage system. Many sodic soils do contain inherent or precipitated sources of Ca2þ, that is calcite (CaCO3), at varying depths within the soil profile. However, due to its negligible solubility, natural dissolution of calcite does not provide sufficient quantities of Ca2þ to affect soil amelioration with routine management practices. Consequently, amelioration of these soils has been predominantly achieved through the application of chemical amendments. However, amendment costs have increased prohibitively over the past two decades due to competing demands from industry and reductions in government subsidies for their agricultural use in several developing countries. In parallel, scientific research and farmers’ feedback have demonstrated that sodic soils can be brought back to a highly productive state through a plantassisted approach generically termed ‘‘phytoremediation.’’ Typical plant-based strategies for contaminated soils, such as those containing elevated levels of metals and metalloids, work through the cultivation of specific plant species capable of hyperaccumulating target ionic species in their shoots, thereby removing them from the soil. In contrast, phytoremediation of sodic soils is achieved by the ability of plant roots to increase the dissolution rate of calcite, thereby resulting in enhanced levels of Ca2þ in soil solution to effectively replace Naþ from the cation exchange complex. Phytoremediation has shown to be advantageous in several aspects: (1) no financial outlay to purchase chemical amendments, (2) accrued financial or other benefits from crops grown during amelioration, (3) promotion of soil-aggregate stability and creation of macropores that improve soil hydraulic properties and root proliferation, (4) greater plant-nutrient availability in soil after phytoremediation, (5) more uniform and greater zone of amelioration in terms of soil depth, and (6) environmental considerations in terms of carbon sequestration in the postamelioration soil. Phytoremediation is particularly effective when used on moderately salinesodic and sodic soils. It is a viable solution for resource-poor farmers through community-based management, which would help in strengthening the linkages among researchers, farm advisors, and farmers. These linkages will continue to be fostered as the use of sodic soils becomes more prevalent. The success of phytoremediation of sodic soils requires a greater understanding of the processes fostering phytoremediation, the potential of plant species to withstand ambient salinity and sodicity levels in soil and water, and also of the uses and markets for the agricultural products produced. Strategic research on such aspects would further elucidate the role of phytoremediation in the restoration of sodic soils for sustainable agriculture and conservation of environmental quality.
7 Pathak, P.; Sahrawat, K. L.; Rego, T. J.; Wani, S. P. 2005. Measurable biophysical indicators for impact assessment: changes in soil quality. In Shiferaw, B.; Freeman, H. A.; Swinton, S. M. (Eds.). Natural resources management in agriculture: methods for assessing economic and environmental impacts. Wallingford, UK: CABI. pp.53-74.
Soil quality ; Indicators ; Soil properties ; Natural resources management ; Impact assessment ; Erosion
(Location: IWMI HQ Call no: 338.1 G000 SHI Record No: H040977)
8 Sahrawat, K. L.; Padmaja, K. V.; Pathak, P.; Wani, S. P. 2005. Measurable biophysical indicators for impact assessment: Changes in water availability and quality. In Shiferaw, B.; Freeman, H. A.; Swinton, S. M. (Eds.). Natural resources management in agriculture: methods for assessing economic and environmental impacts. Wallingford, UK: CABI. pp.75-96.
Water availability ; Indicators ; Runoff ; Watershed management ; Groundwater ; Water quality ; Natural resources management ; Impact assessment
(Location: IWMI HQ Call no: 338.1 G000 SHI Record No: H040978)
9 Pathak, P.; Sahrawat, K. L.; Wani, S. P.; Sachan, R. C.; Sudi, R. 2009. Opportunities for water harvesting and supplemental irrigation for improving rainfed agriculture in semi-arid areas. 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.197-221. (Comprehensive Assessment of Water Management in Agriculture Series 7)
Water harvesting ; Supplemental irrigation ; Rainfed farming ; Tank irrigation ; Water availability ; Water conveyance ; Surface irrigation ; Irrigation systems ; Economic aspects ; Watersheds / India
(Location: IWMI HQ Call no: IWMI 631.586 G000 WAN Record No: H042000)
10 Wani, S. P.; Rockstrom, J.; Sahrawat, K. L.. (Eds.) 2011. Integrated watershed management in rainfed agriculture. Leiden, Netherlands: CRC Press. 472p.
Watershed management ; Rainfed farming ; Rural poverty ; Rural communities ; Sustainable development ; Property rights ; Resource allocation ; Institutions ; Policy ; Land ownership ; Equity ; GIS ; Remote sensing ; Soil conservation ; Water conservation ; Rain water management ; Investment ; Living standards ; Smallholders ; Economic aspects ; Agricultural production ; Dry farming ; Water use efficiency ; Climate change ; Adaptation / Africa South of Sahara / India
(Location: IWMI HQ Call no: 333.91 G000 WAN Record No: H045110)
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