Increasing water productivity on Vertisols: implications for environmental sustainability

Jiru, Mintesinot; Ranst, Éric Van

doi:10.1002/jsfa.4082

Cited by 8 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the farmers' report, a seasonal total of 781 mm irrigation depth was applied to maize (RB) and about 168 mm was applied to the barley field (LB). This corroborates the work of Jiru and Van Ranst () who reported that farmers applied a seasonal irrigation depth of 711–722 mm to the maize crop grown in the area. The irrigation amount indicates that there was a relatively excess application to maize in RB and limited application to barley in LB, which was a result of relatively higher canal water flow to RB whereas limited canal water flow was provided to LB in the 2013/2014 irrigation season.…”

Section: Resultssupporting

confidence: 91%

“…Comparison of potential CWP for the three strategies against the baseline revealed that the highest CWP (1.8 and 1.6 kg m ‐3 ) was obtained under IV and III for maize and (1.3 kg m ‐3 ) under III for barley (Figure ). The result also corroborates the findings of Jiru and Van Ranst () who reported grain CWP values ranging between 0.5 and 1.7 kg m ‐3 for maize based on a field experiment conducted in the same area.…”

Section: Resultssupporting

confidence: 91%

“…Contrastingly, IV resulted in maximum grain yield of 8.6 t ha ‐1 for maize which is comparable to yields reported by Jiru and Van Ranst () under conditions of irrigation experimentation and 2 t ha ‐1 for barley. Similarly, the overall biomass yield was highest (17.8 t ha ‐1 for maize and 6 t ha ‐1 for barley) under the same strategy.…”

Section: Resultssupporting

confidence: 78%

See 2 more Smart Citations

Integrating Participatory Data Acquisition and Modelling of Irrigation Strategies to Enhance Water Productivity in a Small‐Scale Irrigation Scheme in Tigray, Ethiopia

Habtu

Erkossa

Froebrich

et al. 2018

Irrigation and Drainage

View full text Add to dashboard Cite

Application of participatory modelling to water‐saving strategies in smallholder farming is rare. Farmer‐preferred and efficient strategies were identified through participatory modelling. The farmers' basin irrigation and scheduling (I), farmers' scheduling with furrow strategy (II), farmers' scheduling with alternate furrow strategy (III) and scheduling at 55% maximum allowable depletion (MAD) (IV) were evaluated for maize (Zea mais) and barley (Hordeum vulgare) using the FAO AquaCrop model. The results showed that I resulted in over‐irrigation for maize and under‐irrigation for barley, while IV resulted in maximum yield (8.6 t ha‐1 for maize and 2 t ha‐1 for barley) with maximum (1.8 kg m‐3) and minimum (0.8 kg m‐3) water productivity of maize under IV and I, respectively. A shift from I to IV (most preferred strategy by farmers) can save 8440 mm of water, which can possibly bring back 18.5 ha of land into irrigation. It is essential to interact with farmers on a basis of mutual comprehension to increase their trust and to lay a base for discussion, awareness raising and decision making. The transdisciplinary approach, Community of Practice (CoP) and Learning Practice Alliance (LPA) were appropriate platforms for participation. The increased crop yield and water productivity may contribute to ecological and economical sustainability and social equity. Copyright © 2018 John Wiley & Sons, Ltd.

show abstract

Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 91%

See 1 more Smart Citation

Integrating Participatory Data Acquisition and Modelling of Irrigation Strategies to Enhance Water Productivity in a Small‐Scale Irrigation Scheme in Tigray, Ethiopia

Habtu

Erkossa

Froebrich

et al. 2018

Irrigation and Drainage

View full text Add to dashboard Cite

show abstract

“…Al-Said et al (2012) show the effect of drip versus sprinkler irrigation on vegetable yield in Oman, showing that the yield per unit of irrigation water applied is higher for drip irrigation. The effects of irrigation strategies such as deficit or supplementary irrigation on ET and Y were studied by different scholars (Igbadun et al, 2012;Qiu and Meng, 2013;Jiru and Van Ranst, 2010;Bakhsh et al, 2012;Jinxia et al, 2012). In a literature review, Geerts and Raes (2009) point out that deficit irrigation strategy decreases the consumptive water use per unit of yield compared to full irrigation.…”

Section: Published By Copernicus Publications On Behalf Of the Europementioning

confidence: 99%

Green and blue water footprint reduction in irrigated agriculture: effect of irrigation techniques, irrigation strategies and mulching

Chukalla¹,

Krol²,

Hoekstra³

2015

Hydrol. Earth Syst. Sci.

237

164

View full text Add to dashboard Cite

Abstract. Consumptive water footprint (WF) reduction in irrigated crop production is essential given the increasing competition for freshwater. This study explores the effect of three management practices on the soil water balance and plant growth, specifically on evapotranspiration (ET) and yield (Y ) and thus the consumptive WF of crops (ET / Y ). The management practices are four irrigation techniques (furrow, sprinkler, drip and subsurface drip (SSD)), four irrigation strategies (full (FI), deficit (DI), supplementary (SI) and no irrigation), and three mulching practices (no mulching, organic (OML) and synthetic (SML) mulching). Various cases were considered: arid, semi-arid, sub-humid and humid environments in Israel, Spain, Italy and the UK, respectively; wet, normal and dry years; three soil types (sand, sandy loam and silty clay loam); and three crops (maize, potato and tomato). The AquaCrop model and the global WF accounting standard were used to relate the management practices to effects on ET, Y and WF. For each management practice, the associated green, blue and total consumptive WF were compared to the reference case (furrow irrigation, full irrigation, no mulching). The average reduction in the consumptive WF is 8-10 % if we change from the reference to drip or SSD, 13 % when changing to OML, 17-18 % when moving to drip or SSD in combination with OML, and 28 % for drip or SSD in combination with SML. All before-mentioned reductions increase by one or a few per cent when moving from full to deficit irrigation. Reduction in overall consumptive WF always goes together with an increasing ratio of green to blue WF. The WF of growing a crop for a particular environment is smallest under DI, followed by FI, SI and rain-fed. Growing crops with sprinkler irrigation has the largest consumptive WF, followed by furrow, drip and SSD. Furrow irrigation has a smaller consumptive WF compared with sprinkler, even though the classical measure of "irrigation efficiency" for furrow is lower.

show abstract

“…Al-Said et al (2012) show the effect of drip versus sprinkler irrigation on vegetables yield in Oman, showing that the yield per unit of irrigation water applied is higher for drip irrigation. The effect of irrigation strategies such as deficit or supplementary irrigation on ET and Y were studied by different scholars Qiu and Meng, 2013;Jiru and Van Ranst, 2010;Bakhsh et al, 2012;Jinxia et al, 2012). In a literature review, Geerts and Raes (2009) point out that deficit irrigation strategy decreases the consumptive water use per unit of yield compared to full irrigation.…”

Section: Introductionmentioning

confidence: 99%

Green, blue and greay water footpring reduction in irrigated crop production

Chukalla

View full text Add to dashboard Cite

Increasing water productivity on Vertisols: implications for environmental sustainability

Abstract: Based on the results, the study concluded that surge and deficit irrigation technologies not only improve water productivity but also enhance environmental sustainability.

Cited by 8 publications

References 17 publications

Integrating Participatory Data Acquisition and Modelling of Irrigation Strategies to Enhance Water Productivity in a Small‐Scale Irrigation Scheme in Tigray, Ethiopia

Integrating Participatory Data Acquisition and Modelling of Irrigation Strategies to Enhance Water Productivity in a Small‐Scale Irrigation Scheme in Tigray, Ethiopia

Green and blue water footprint reduction in irrigated agriculture: effect of irrigation techniques, irrigation strategies and mulching

Green, blue and greay water footpring reduction in irrigated crop production

Contact Info

Product

Resources

About