Your search found 4 records
1 Qureshi, Asad Sarwar; Eshmuratov, D.; Bezborodov, G. 2011. Determining optimal groundwater table depth for maximizing cotton production in the Sardarya Province of Uzbekistan. Irrigation and Drainage, 60(2):241–252. [doi: https://doi.org/10.1002/ird.568]
Cotton ; Simulation models ; Calibration ; Groundwater table ; Soil water content ; Water balance ; Irrigation practices ; Salinity ; Evapotranspiration / Uzbekistan / Syr Darya River Basin
(Location: IWMI HQ Call no: PER Record No: H042963)
(0.32 MB)
Poor on-farm irrigation practices and rising groundwater table depths are the major reasons for low cotton yields in the Sardarya province of Uzbekistan. To ensure sustainability of cotton production in the area, precise calculations of irrigation requirements are needed to optimize crop yields and to keep groundwater table depth below the root zone to avoid soil salinization. To determine optimal groundwater table depth and irrigation amounts for the Sardarya province of Uzbekistan, the Soil–Water–Atmosphere–Plant (SWAP) model was used. SWAP was calibrated and validated using measured data from an experimental cotton field during the agricultural year of 2006 and 2007. The calibrated SWAP model was then used to simulate optimal groundwater table depth and irrigation amounts. The simulation results show that for the existing conditions in the study area, a groundwater table depth of approximately 200 cm together with an irrigation application of 2500m3 ha1 will be the most appropriate combination for optimal cotton yields ( 3.0 t ha1). However, to achieve maximum potential yields of cotton (5–6 t ha1), leaching of excessive salts from the root zone through freshwater application would be imperative. This would require rehabilitation of the existing drainage network in the area.
2 Djumaboev, Kakhramon; Manthrithilake, Herath; Ayars, J.; Yuldashev, T.; Akramov, B.; Karshiev, R.; Eshmuratov, D.. 2019. Growing cotton in Karshi Steppe, Uzbekistan: water productivity differences with three different methods of irrigation. In Indian National Committee on Surface Water (INCSW) - CWC. Proceedings of 9th International Micro Irrigation Conference (9IMIC), Aurangabad, India, 16-18 January 2019. Bangalore, India: IvyLeague. pp.391-397.
Irrigation efficiency ; Cotton industry ; Water productivity ; Water use efficiency ; Pumps ; Irrigated land ; Irrigation water ; Irrigation methods ; Drip irrigation ; Crop yield / Uzbekistan / Karshi Steppe
(Location: IWMI HQ Call no: e-copy only Record No: H049078)
http://micro-irrigation2019.com/wp-content/uploads/2019/01/Proceedings-13Jan.pdf
https://vlibrary.iwmi.org/pdf/H049078.pdf
https://vlibrary.iwmi.org/pdf/H049078.pdf
(24.7 MB)
In Uzbekistan, generally practiced methods of irrigating crops are varieties of flooding (basin, border and furrow). These practices have created problems of waterlogging, salinity and lower irrigation efficiency. Waterlogging and salinization already affect 50 percent of irrigated areas, and irrigation efficiency hardly reaches up to 50-60%. The Karshi Steppe of Kashkadarya region is among the prime cotton and wheat producing areas in Uzbekistan, using around 4.5 – 5.0 billion m3 of irrigation water within a hydrological year. About 75% of this water is abstracted from Amu Darya River in the territory of Turkmenistan and raised up to 135 meters, using a cascade of seven pumping stations to Karshi main canal. Research on implications of applying other irrigation technologies with different irrigation regimes on cotton crop are limited in Uzbekistan, especially under water scarce situations, such as in Karshi Steppe. This study targeted that knowledge gap and compared performance of cotton crop under different irrigation regimes with three technologies (furrows, gated pipes, and drip). The yield data ranged from 3.5 to 4.6 t ha-1, whereas water productivity (WP) values ranged from 0.44 to 1.20 kg m-3 and irrigation water use efficiency (IWUE) ranged from 0.51 to 1.41 kg m-3. The measured ranges of IWUE and WP are much wider compared with data available for Karshi Steppe. Due to cotton being sensitive to soil-moisture stress, lack of skillful technicians at site for irrigation scheduling has led to more water stress than was planned for, resulting in lower crop yields than expected.
3 Djumaboev, Kakhramon; Reddy, J. M.; Carli, C.; Yuldashev, Tulkun; Anarbekov, Oyture; Eshmuratov, D.. 2019. Water productivity of potato under improved irrigation techniques in Uzbekistan [Abstract only]. In ICID. 3rd World Irrigation Forum (WIF3) on Development for Water, Food and Nutrition Security in a Competitive Environment. Full papers and international workshops, Bali, Indonesia, 1-7 September 2019. New Delhi, India: ICID. pp.181.
Water productivity ; Crop production ; Potatoes ; Irrigation methods ; Furrow irrigation ; Techniques ; Water policy / Uzbekistan
(Location: IWMI HQ Call no: e-copy only Record No: H049331)
(0.07 MB) (3.10 MB)
Potato is a very important cash crop in Uzbekistan as the government has implemented several measures to increase its production to meet food security as well as to improve its export potential. However, irrigation water demand of potato is much higher than for other crops such as sorghum and maize, which normally consume less water and generate more income. Furrow irrigation is the main irrigation method used to grow potato in Uzbekistan. Introduction of improved irrigation methods could reduce the water used for potato production and provide alternative solutions to improving potato production and income security under water scarce conditions. There are few comparative studies on conventional furrow versus improved irrigation methods for potato production.
This paper explores water productivity of two varieties of potato under four irrigation treatments in Andijan and Ferghana regions of Uzbekistan. At each location, four different irrigation treatments were evaluated. These four treatments were: conventional furrow irrigation (CFI), high frequency furrow irrigation (HFI), partial root zone drying irrigation (PRD), and drip irrigation (DrI). The experimental sites in each study area were established in 2012 on farmer fields. Data on water used and agronomic performance were collected from both study sites to calculate water productivity for each treatment. Analysis of Variance (ANOVA) was used to identify differences in treatments. The results indicate that, overall, high frequency furrow irrigation and drip irrigation treatments performed better than conventional furrow irrigation and partial root drying treatments.
Research findings from this paper are useful for relevant stakeholders in Uzbekistan whose population is highly dependent on irrigated agriculture. Existing water use policies in Uzbekistan do not provide water users incentives for water saving as water delivery for agriculture is highly subsidized by the government resulting in excessive water use. These findings may help reduce unsustainable water use by increasing knowledge of relevant stakeholders including decision makers in order to improve water policies in the region.
This paper explores water productivity of two varieties of potato under four irrigation treatments in Andijan and Ferghana regions of Uzbekistan. At each location, four different irrigation treatments were evaluated. These four treatments were: conventional furrow irrigation (CFI), high frequency furrow irrigation (HFI), partial root zone drying irrigation (PRD), and drip irrigation (DrI). The experimental sites in each study area were established in 2012 on farmer fields. Data on water used and agronomic performance were collected from both study sites to calculate water productivity for each treatment. Analysis of Variance (ANOVA) was used to identify differences in treatments. The results indicate that, overall, high frequency furrow irrigation and drip irrigation treatments performed better than conventional furrow irrigation and partial root drying treatments.
Research findings from this paper are useful for relevant stakeholders in Uzbekistan whose population is highly dependent on irrigated agriculture. Existing water use policies in Uzbekistan do not provide water users incentives for water saving as water delivery for agriculture is highly subsidized by the government resulting in excessive water use. These findings may help reduce unsustainable water use by increasing knowledge of relevant stakeholders including decision makers in order to improve water policies in the region.
4 Djumaboev, Kakhramon; Reddy, J. M.; Carli, C.; Yuldashev, Tulkun; Anarbekov, Oyture; Eshmuratov, D.. 2019. Water productivity of potato under improved irrigation techniques in Uzbekistan. Paper presented at the 3rd World Irrigation Forum (WIF3) on Development for Water, Food and Nutrition Security in a Competitive Environment, Bali, Indonesia, 1-7 September 2019. 8p.
Water productivity ; Crop production ; Potatoes ; Irrigation methods ; Techniques ; Furrow irrigation ; Drip irrigation ; Irrigation water ; Water use efficiency ; Water policy ; Crop yield / Uzbekistan / Fergana / Andijan
(Location: IWMI HQ Call no: e-copy only Record No: H049332)
(0.25 MB)
Potato is a very important cash crop in Uzbekistan as the government has implemented several measures to increase its production to meet food security as well as to improve its export potential. However, irrigation water demand of potato is much higher than for other crops such as sorghum and maize, which normally consume less water and generate more income. Furrow irrigation is the main irrigation method used to grow potato in Uzbekistan. Introduction of improved irrigation methods could reduce the water used for potato production and provide alternative solutions to improving potato production and income security under water scarce conditions. There are few comparative studies on conventional furrow versus improved irrigation methods for potato production.
This paper explores water productivity of two varieties of potato under four irrigation treatments in Andijan and Ferghana regions of Uzbekistan. At each location, four different irrigation treatments were evaluated. These four treatments were: conventional furrow irrigation (CFI), high frequency furrow irrigation (HFI), partial root zone drying irrigation (PRD), and drip irrigation (DrI). The experimental sites in each study area were established in 2012 on farmer fields. Data on water used and agronomic performance were collected from both study sites to calculate water productivity for each treatment. Analysis of Variance (ANOVA) was used to identify differences in treatments. The results indicate that, overall, high frequency furrow irrigation and drip irrigation treatments performed better than conventional furrow irrigation and partial root drying treatments.
Research findings from this paper are useful for relevant stakeholders in Uzbekistan whose population is highly dependent on irrigated agriculture. Existing water use policies in Uzbekistan do not provide water users incentives for water saving as water delivery for agriculture is highly subsidized by the government resulting in excessive water use. These findings may help reduce unsustainable water use by increasing knowledge of relevant stakeholders including decision makers in order to improve water policies in the region.
This paper explores water productivity of two varieties of potato under four irrigation treatments in Andijan and Ferghana regions of Uzbekistan. At each location, four different irrigation treatments were evaluated. These four treatments were: conventional furrow irrigation (CFI), high frequency furrow irrigation (HFI), partial root zone drying irrigation (PRD), and drip irrigation (DrI). The experimental sites in each study area were established in 2012 on farmer fields. Data on water used and agronomic performance were collected from both study sites to calculate water productivity for each treatment. Analysis of Variance (ANOVA) was used to identify differences in treatments. The results indicate that, overall, high frequency furrow irrigation and drip irrigation treatments performed better than conventional furrow irrigation and partial root drying treatments.
Research findings from this paper are useful for relevant stakeholders in Uzbekistan whose population is highly dependent on irrigated agriculture. Existing water use policies in Uzbekistan do not provide water users incentives for water saving as water delivery for agriculture is highly subsidized by the government resulting in excessive water use. These findings may help reduce unsustainable water use by increasing knowledge of relevant stakeholders including decision makers in order to improve water policies in the region.
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