Your search found 8 records
1 Tanji, K. K.; Karajeh, F.. 1991. Agricultural drainage reuse in agroforestry systems. In Ritter, W. F. (Ed.), Irrigation and drainage: Proceedings of the 1991 National Conference sponsored by the Irrigation and Drainage Division of the American Society of Civil Engineers and the Hawaii Section, ASCE, Honolulu, Hawaii, July 22-26, 1991. New York, NY, USA: ASCE. pp.53-59.
Agroforestry ; Drainage ; Water reuse ; Salinity ; Soil water ; Eucalyptus / USA / California / San Joaquin Valley
(Location: IWMI-HQ Call no: 631.7 G430 RIT Record No: H019875)
On the westside of California's San Joaquin Valley, agroforestry systems are being evaluated as a solution to the agricultural drainage problem. Eucalyptus tree plantations are established to consume the excess shallow saline ground water and cropland drainage waters. The long-term efficacy of this practice is being evaluated. This paper presents a growing body of data on soil water and salt fluxes in a tile-drained 9.43 ha Eucalyptus plantation. After several years of drainwater reuse, a substantial buildup of salinity and boron has occurred throughout the soil profile to the extent that the trees are no longer able to extract the available soil water.
2 Karajeh, F.. 2004. Conjunctive use of irrigation and shallow groundwater: Strategy to cope with salinity and water scarcity, Arys’–Turkestan study. In Taha, F. K.; Ismail, S.; Jaradat, A. (Eds.), Prospects of saline agriculture in the Arabian Peninsula: Proceedings of the International Symposium on “Prospects of Saline Agriculture in the GCC Countries.” Amherst, MA, USA: Amherst Scientific Publishers. pp.255-268.
Conjunctive use ; Groundwater ; Irrigation water ; Water scarcity ; Salinity ; furrow irrigation ; Irrigation programs
(Location: IWMI-HQ Call no: 631.7.5 GG10 TAH Record No: H035634)
3 Karajeh, F.; Karimov, A.; Mukhamedjanov, V.; Vyshpolsky, F.; Mukhamedjanov, K.; Ikramov, R.; Palvanov, T.; Novikova, A. 2004. Improved on-farm water management strategies in Central Asia. Ryan, J.; Vlek, P.; Paroda, R. (Eds.), Agriculture in Central Asia: Research for development. Aleppo, Syria: ICARDA. pp.76-89.
Irrigated farming ; Furrow irrigation ; Drip irrigation ; Soil moisture ; Evapotranspiration ; Economic analysis / Central Asia / Kazakhstan / Arys Turkestan
(Location: IWMI-HQ Call no: 630 G570 RYA Record No: H036010)
4 Karimov, A.; Karajeh, F.; Mirzajanov, K.; Sanginov, S.; Aliev, I.; Nazarmamedov, O. 2004. Drainage water reuse for agricultural production in Central Asia. Ryan, J.; Vlek, P.; Paroda, R. (Eds.), Agriculture in Central Asia: Research for development. Aleppo, Syria: ICARDA. pp.101-115.
Irrigation water ; Water reuse ; Water quality ; Drainage ; Soil moisture ; Water use efficiency ; Wheat ; Sandy soils ; Drainage ; Soil salinity ; Irrigation scheduling / Central Asia / Turkmenistan / Uzbekistan
(Location: IWMI-HQ Call no: 630 G570 RYA Record No: H036012)
5 Qadir, Mohammed; Sharma, Bharat R.; Bruggeman, A.; Choukr-Allah, R.; Karajeh, F.. 2007. Non-conventional water resources and opportunities for water augmentation to achieve food security in water scarce countries. Agricultural Water Management, 87(1):2-22.
Water scarcity ; Salt water intrusion ; Groundwater ; Water quality ; Wastewater ; Water harvesting ; Irrigated farming ; Water supply ; Food security
(Location: IWMI-HQ Call no: IWMI 631.7.5 G000 QAD, PER Record No: H039620)
6 Vyshpolsky, F.; Qadir, Manzoor; Karimov, Akmal; Mukhamedjanov, K.; Bekbaev, U.; Paroda, R.; Aw-Hassan, A.; Karajeh, F.. 2008. Enhancing the productivity of high-magnesium soil and water resources in Central Asia through the application of phosphogypsum. Land Degradation and Development, 19: 45–56.
Soil degradation ; Soil amendments ; Soil properties ; Soil salinity ; Water quality ; Cotton ; Yields ; Irrigation scheduling ; Economic analysis / Kazakhstan
(Location: IWMI HQ Call no: IWMI 631.4 G772 VYS Record No: H040596)
Recent evidences from some irrigated areas worldwide, such as Central Asia, suggest that water used for irrigation contains magnesium (Mg2þ) at levels higher than calcium (Ca2þ). Excess levels of Mg2þ in irrigation water and/or in soil, in combination with sodium (Naþ) or alone, result in soil degradation because of Mg2þ effects on the soil’s physical properties. More than 30 per cent of irrigated lands in Southern Kazakhstan having excess levels of Mg2þ are characterized by low infiltration rates and hydraulic conductivities. The consequence has been a gradual decline in the yield of cotton (Gossypium hirsutum L.), which is commonly grown in the region. These soils require adequate quantities of Ca2þ to mitigate the effects of excess Mg2þ. As a source of Ca2þ, phosphogypsum—a byproduct of the phosphorous fertilizer industry—is available in some parts of Central Asia. In participation with the local farming community, we carried out a 4-year field experiment in Southern Kazakhstan to evaluate the effects of soil application of phosphogypsum—0, 4_5, and 8_0 metric ton per hectare (t ha_1)—on chemical changes in a soil containing excess levels of Mg2þ, and on cotton yield and economics. The canal water had Mg2þ to Ca2þ ratio ranging from 1_30 to 1_66 during irrigation period. The application of phosphogypsum increased Ca2þ concentration in the soil and triggered the replacement of excess Mg2þ from the cation exchange complex. After harvesting the first crop, there was 18 per cent decrease in exchangeable magnesium percentage (EMP) of the surface 0_2m soil over the pre- experiment EMP level in the plots where phosphogypsum was applied at 4_5 t ha_1, and a 31 per cent decrease in EMP in plots treated with phosphogypsum at 8 t ha_1. Additional beneficial effect of the amendment was an increase in the soil phosphorus content. The 4-year average cotton yields were 2_6 t ha_1 with 8 t ha_1 phosphogypsum, 2_4 t ha_1 with 4_5 t ha_1 phosphogypsum, and 1_4 t ha_1 with the control. Since the amendment was applied once at the beginning, exchangeable Mg2þ levels tended to increase 4 years after its application, particularly in the treatment with 4_5 tha_1 phosphogypsum. Thus, there would be a need for phosphogypsum application to such soils after every 4–5 years to optimize the ionic balance and sustain higher levels of cotton production. The economic benefits from the phosphogypsum treatments were almost twice those from the control.
7 Karajeh, F.; Ryan, J.; Studer, C. (Eds.) 2002. On-farm soil and water management in Central Asia: proceedings of an international workshop, Tashkent, Uzbekistan, 17-19 May 1999. Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA); Tashkent, Uzbekistan: Scientific Information Center of Interstate Commission for Water Coordination (SANIIRI).: 164p.
Water management ; Water use efficiency ; Water consumption ; Water harvesting ; Rain ; Runoff ; Soil resources ; Soil management ; Soil degradation ; Soil organic matte ; Socioeconomic environment ; Irrigation systems ; Supplemental irrigation ; Irrigated farming ; Agricultural development ; On farm research ; Land use ; Mapping ; Models / Central Asia
(Location: IWMI HQ Call no: 333.91 G770 KAR Record No: H045945)
(0.45 MB)
8 Qadir, M.; Noble, Andrew D.; Karajeh, F.; George, B. 2015. Potential business opportunities from saline water and salt-affected land resources. Colombo, Sri Lanka: International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE). 29p. (Resource Recovery and Reuse Series 05) [doi: https://doi.org/10.5337/2015.206]
Land resources ; Land degradation ; Saline water ; Sodic soils ; Soil salinity ; Desalination ; Crop production ; Ecosystems ; Aquaculture ; Water resources ; Water productivity ; Drainage water ; Water reuse ; Recycling ; Freshwater ; Soil properties ; Magnesium ; Phosphogypsum ; Energy generation ; Solar energy ; Horticulture ; Greenhouses ; Irrigation ; Deltas ; Trees ; Case studies / Egypt
(Location: IWMI HQ Call no: IWMI Record No: H046996)
(1 MB)
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