Deficit irrigation and nitrogen effects on seed cotton yield, water productivity and yield response factor in shallow soils of semi-arid environment

Singh, Yajuvendra; Rao, S. S.; Regar, P. L.

doi:10.1016/j.agwat.2010.01.028

Cited by 91 publications

(48 citation statements)

References 7 publications

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“…The Ky connects the relative decrease in yield to the relative evapotranspiration deficit, and its specific value changes according to the crop species and cultivar, the irrigation method, and the crop management (Singh et al, 2010). A Ky>1.0 identifies sensitivity to water stress and indicates, for a given evapotranspiration deficit, that the expected relative yield decrease is proportionately greater than the relative decrease in evapotranspiration.…”

Section: Relative Yield Decreasementioning

confidence: 99%

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

et al. 2016

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Processing tomato grown in Mediterranean region required high irrigation volume throughout growing season. A two-year study was carried out in order to investigate the effects of deficit irrigation (DI) and regulated deficit irrigation (RDI) on processing tomato cultivated under sub-arid conditions. A comparison between the irrigation management linked to common practice adopted by farmer and the irrigation management based on crop evapotranspiration (ETc) demand was also done. The tomato cv. Genius F1 was cultivated under five water regimes: minimal irrigation (I0), as irrigation only at transplanting and during fertilising; DI, to restore 60% ETc; RDI, to restore 60%-80%-60% ETc across the three main tomato phenological stages; full irrigation (FI), to restore 100% ETc; and farmer irrigation (FaI), as irrigation following the subjective farmer method. Compared to FI, under the FaI regime, the seasonal irrigation volume was 31% and 26% higher in the 2009 and 2010, respectively, with not significant yield increase between the two water regimes. Among the irrigation regimes, only the RDI showed similar yield values over the two years, although 2010 was climatically less favourable. For the water use efficiency related to the marketable yield (WUEy), among the irrigation regimes, RDI showed the higher value together with FI. Finally, the Ky was 0.91, which indicates moderate water stress tolerance for processing tomato cultivated in Mediterranean regions. In conclusion, the data obtained in the present study demonstrate that in Southern Italy the irrigation planning followed by the farmer does not follow the principles of sustainable irrigation. Moreover, with the adoption of the RDI strategy, it is possible to save about 27% of water maintaining high WUEy value with an increase of fruit quality. The adoption of this regime could be suggested in processing tomato cultivated under Mediterranean climate saving water in both the vegetative and ripening periods.

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Section: Relative Yield Decreasementioning

confidence: 99%

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

et al. 2016

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“…As showed in Fig. 4 (Dağdelen et al, 2009, Du et al, 2008, Ibragimov et al, 2007, Singh et al, 2010, was always less than WP ET . This behavior could be attributed to groundwater depth of Brazilian semi arid which becomes impossible capillary rise.…”

Section: Water Use Efficiencymentioning

confidence: 78%

“…(Table 6). This should be attributed to used irrigation system because in general the studies which used irrigation system less efficient, for example flood and furrow (Jalota et al, 2006, Saranga et al, 1998, and Singh et al, 2010 presented the worst performance. …”

Section: Water Use Efficiencymentioning

confidence: 99%

Crop Evapotranspiration and Water Use Efficiency

Bezerra¹

2012

Irrigation Systems and Practices in Challenging Environments

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“…Mulched drip irrigation, which saves water and increases water use efficiency as compared to furrow irrigation (Ibraginmov et al 2007), is widely used in the area to irrigate cotton, a major cash crop in Xinjiang (Hou et al 2009). Cotton yields generally decrease with a reduction in irrigation, irrespective of whether conventional irrigation technologies or drip irrigation is used (Singh et al 2010;Ü nlü et al 2011), and are also limited by poor quality of irrigation water and related problems of soil salinization (Leidi and Saiz 1997;Vulkan-Levy et al 1998;Qadir and Shams 1997;Henggeler 2004;Chen et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of mulched drip irrigation for cotton in arid Northwest China

et al. 2013

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Field experiments were conducted in arid Southern Xinjiang, Northwest China, for 3 years to evaluate sustainable irrigation regimes for cotton. The experiments involved mulched drip irrigation during the growing season and flood irrigation afterward. The drip irrigation experiments included control experiments, experiments with deficit irrigation during one crop growth stage, and alternative irrigation schemes in which freshwater was used during one growth stage and relatively saline water in the others. The average cotton yield over 3 years varied between 3,575 and 5,095 kg/ha, and the irrigation water productivity between 0.91 and 1.16 kg/m 3 . Crop sensitivities to water stress during the different growth stages ranged from early flowering-belling (most sensitive) [ seedling [ budding [ late flowering-belling (least sensitive), while sensitivities to salt stress ranged from late flowering-belling [ budding [ seedling [ early flowering-belling. Although mulched drip irrigation during the growing season caused an increase in salinity in the root zone, flood irrigation after harvesting leached the accumulated salts to below background levels. Numerical simulations, based on the 3-year experiments and extended by another 20 years, suggest that mulched drip irrigation using alternatively fresh and brackish water during the growing season and flood irrigation with freshwater after harvesting is a sustainable irrigation practice that should not lead to soil salinization.

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Deficit irrigation and nitrogen effects on seed cotton yield, water productivity and yield response factor in shallow soils of semi-arid environment

Cited by 91 publications

References 7 publications

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

Crop Evapotranspiration and Water Use Efficiency

Evaluation of mulched drip irrigation for cotton in arid Northwest China

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