Could deficit irrigation be a sustainable practice for quinoa (Chenopodium quinoa Willd.) in the Southern Bolivian Altiplano?

Geerts, Sam; Raes, Dirk; Garcia, Magalı́; Condori, Octavio; Mamani, Judith; Miranda, Roberto; Cusicanqui, Jorge; Taboada, Cristal; Yucra, Edwin; Vacher, Jean

doi:10.1016/j.agwat.2008.02.012

Cited by 77 publications

(61 citation statements)

References 30 publications

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“…Moreover, it is important to point out that fluctuation of expected quinoa yield between rainfed and def icit irrigation might be up to three times greater for a similar ETa, that is the result of the timing of the water application under deficit irrigation, which is applied during flowering and early grain filling phase, compared to rainfed conditions that cannot be controlled, which is a competitive advantage of this technology for stabilize quinoa yield. Quinoa yield for the Southern Bolivian Altiplano under rainfed and different irrigation strategies reported by several authors varied from 0.3 to 2.1 ton ha -1 (Aguilar & Jacobsen, 2003;Bosque et al, 2003;García et al, 2003;Geerts et al, 2008bGeerts et al, , 2009a. These confirm the results found in the present study where quinoa yield was well simulated by the AquaCrop model.…”

Section: Discussionsupporting

confidence: 82%

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

Cusicanqui

Dillen

Garcia

et al. 2013

Span. j. agric. res.

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In the Southern Bolivian Altiplano recent research has suggested to introduce deficit irrigation as a strategy to boost quinoa yields and to stabilize it at 2.0 ton ha-1. In this study we carried out an economic assessment of the implementation of deficit irrigation at farm level using a hydro-economic model for simulating profit for quinoa production. As input of the model we worked with previously developed farms typology (livestock, quinoa and subsistence farms), simulated quinoa production with and without irrigation using AquaCrop model, and calculated yield response functions for four different climate scenarios (wet, normal, dry and very dry years). Results from the hydro-economic model demonstrate that maximum profit is achieved with less applied irrigated water than for maximum yield, and irrigated quinoa earned more profit than rainfed production for all farms types and climate scenarios. As expected, the benefits of irrigation under dry and very dry climate conditions were higher than those under normal and wet years, and benefits among farms types were higher for quinoa farms. In fact, profit of irrigated quinoa might be stabilized at around BOB 6500 ha-1 (about USD 920) compared with the huge differences found for rainfed conditions for all climate scenarios. Interestingly, the economic water productivity, expressed in terms of economic return for amount of applied irrigated water (BOB mm-1), reached the highest values with intermediate and low level of water availability schemes of deficit irrigation for all climate scenarios.

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Section: Discussionsupporting

confidence: 82%

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

Cusicanqui

Dillen

Garcia

et al. 2013

Span. j. agric. res.

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“…However, practicing TDI would increase in the irrigated area or frequency of cultivation. TDI provides a possible solution to the dilemma of sustained and/or increased productions (Geerts et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Comparison of traditional and modern deficit irrigation techniques in corn cultivation using treated municipal wastewater

Tabatabaei

Nafchi

Najafi

et al. 2017

Int J Recycl Org Waste Agricult

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Purpose Declining water resources, increasing drought period and increasing irrigated area cause a shift to deficit irrigated production which is not based on full water requirement. This study was conducted to investigate the impacts of two different deficit irrigation methods, including traditional deficit irrigation (TDI) and partial root-zone drying (PRD) on water use efficiency (WUE) in corn cultivations located at the lands close to the Shahrekord wastewater treatment plant. Methods A factorial design was employed, consisted of fifteen treatments and three replications. The first factor was three water applications, including 60, 80 and 100 (control) percent of plant water requirement. The second factor was three water sources, including 100% fresh water (FW), 50% water and 50% wastewater (5050), 100% wastewater (WW). T-Tape irrigation type system was used for irrigation of corn (Zea mays L.). The third factor was water management in three levels: full irrigation (FI), PRD and TDI. Results The result showed that dry and fresh weight, leaf area index (LAI), dry biomass percentage and WUE were affected by water requirement at 5% probability level expect of height plant that is affected at 1% probability level. Water quality was affected on all the study indicators of corn plant expect of WUE. WUE among PRD by deficit irrigation treatments were higher than TDI and it was the minimum in FI. The dry and wet weight and LAI were maximum at FI and then PDR 80 than TDI 80 . The height of corn plants were high at FI and TDI 80 than PRD 80 . Conclusion Finally, wastewater application in treatment named 5050-PRD 80 and 5050-TDI 80 compensated water deficit in WUE, LAI and dry biomass percentage. PRD method recognized more suitable than TDI for corn plants.

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“…raises questions in the arid southern Altiplano where water resources are limited and often saline. Rainfed quinoa and quinoa with irrigation restricted to flowering and early grain filling were studied during the 2005-2006 and 2006-2007 growing seasons. Results showed that irrigation of quinoa with saline water and/or capillary rise from a saline shallow water table could result in significant salt accumulation in the root zone after just 1 year (Geerts et al, 2008) In Chile, effects were reported of agricultural activities on water pollution. A sensitivity analysis and a preliminary short-term, site-scale performance assessment of analytical soil and groundwater nitrate transport were carried out (Oyarzun et al, 2007).…”

Section: Water and Soil Quality In Arid And Semi-arid Regions In Latimentioning

confidence: 99%

Environmental Effects of Irrigation in Arid and Semi-Arid Regions

Fernández-Cirelli

Arumí²,

Rivera³

et al. 2009

Chilean J. Agric. Res.

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This article reviews the state of the art with respect to the environmental effects of irrigated agriculture on water and soil quality in arid and semi-arid regions on a field scale. Information is scarce and fragmentary. Examples in selected areas of other arid and semi-arid regions in the world clearly show the importance of studying the environmental impact of irrigation practices on water and soil quality. Studies mainly refer to waterlogging and salinization. As regards agrochemicals, fertilizers have been taken into account through nitrate leaching. The impact of micropollutants such as pesticides and heavy metals on water and soil quality is studied mainly by modeling. Pharmaceutical compounds emerge as pollutants when wastewater is used for irrigation without any previous treatment, situation which is now the object of new studies. There is an obvious need to study in-depth knowledge related to appropriate technologies for the use, treatment, and reuse of wastewater which is a valuable resource in arid and semi-arid regions.

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Could deficit irrigation be a sustainable practice for quinoa (Chenopodium quinoa Willd.) in the Southern Bolivian Altiplano?

Cited by 77 publications

References 30 publications

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

Economic assessment at farm level of the implementation of deficit irrigation for quinoa production in the Southern Bolivian Altiplano

Comparison of traditional and modern deficit irrigation techniques in corn cultivation using treated municipal wastewater

Environmental Effects of Irrigation in Arid and Semi-Arid Regions

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