Assessment of yield and water productivity of clementine trees under surface and subsurface drip irrigation

Martínez-Gimeno, M.A.; Bonet, Luís; Provenzano, Giuseppe; Badal, E.; Intrigliolo, Diego S.; Ballester, Carlos

doi:10.1016/j.agwat.2018.05.011

Cited by 46 publications

(23 citation statements)

References 31 publications

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“…We agree with the discussers, who pointed out that a surface drip irrigation (SDI) system has been proposed as a promising strategy for sustainable water management in semiarid regions (Consoli et al 2014;Martínez-Gimeno et al 2018) due to water application efficiencies of up to 95%. The original paper was focused only on the determination of an appropriate depth at which driplines could be placed to avoid wetting the soil surface.…”

supporting

confidence: 88%

Closure to “Modeling Approaches for Determining Appropriate Depth of Subsurface Drip Irrigation Tubing in Alfalfa” by Rocio Guadalupe Reyes-Esteves and Donald C. Slack

Reyes-Esteves

Slack

2021

J. Irrig. Drain Eng.

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supporting

confidence: 88%

Closure to “Modeling Approaches for Determining Appropriate Depth of Subsurface Drip Irrigation Tubing in Alfalfa” by Rocio Guadalupe Reyes-Esteves and Donald C. Slack

Reyes-Esteves

Slack

2021

J. Irrig. Drain Eng.

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“…Similar water savings with no yield reductions as observed in the present work were obtained in previous studies also in citrus trees using other irrigation strategies such as regulated deficit irrigation (RDI) (Ballester et al, 2014) and subsurface drip irrigation (Martínez-Gimeno et al, 2018). The SB strategy coupled with RDI strategies could be used to improve water productivity, reduce tree growth and improve fruit composition, enhancing thus economical profit (Pérez-Pérez et al, 2010).…”

Section: Irrigation Strategy Validationsupporting

confidence: 88%

“…The θcrit-FDR below which plant water stress occurs, and it is necessary to start irrigation, was obtained by solving linear equations fed with simultaneous measurements of Ψstem and θFDR. Values of Ψstem obtained in previous research carried out in the area for solving these equations (Ballester et al, 2014;Martínez-Gimeno et al 2018) (DOY 140-160, period A2), August 5 th to August 19 th (DOY 218-232, period B2) and December 1 st to January 13 th (DOY 336-13, period C2) in 2016-2017.…”

Section: Critical Soil Water Content Definitionmentioning

confidence: 99%

Riego de precisión para la eficiencia hídrica en la agricultura Mediterránea

Gimeno¹,

Amparo²

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Precision irrigation for water use efficiency in Mediterranean agriculture. Irrigated agriculture sustainability in the Mediterranean basin depends on the efficient use of water resources to face future scenarios of increasing demographic trends and climate change. In this sense, the new digital technology networks (Internet of Things, IoT) which collect multiple data and facilitate decision making, can be used as helpful tools for the correct determination and application of irrigation water. The present Doctoral Thesis is framed around the three axes of the efficient irrigation: water distribution system selection, determination of irrigation water needs and plant water status assessment. The experiment detailed in Chapter II is focused on the selection of the drip irrigation system better adapted to the peculiarities of citrus crops. The possible advantages of subsurface drip irrigation and the installation of irrigation laterals with higher density of emitters per plant were evaluated. Specifically, in the study was assessed the performance of the mandarin (Citrus clementina, Hort. Ex Tan. 'Arrufatina') under a surface (SI) and subsurface drip irrigation (SSI) with 7 (SI7, SSI7) or 14 emitters (SI14, SSI14) per plant, as well as a third SS treatment (SSIA), identical to SSI7 but equipped with an additional drip line buried between the tree rows. Treatments were assessed in terms of yield, fruit composition, water productivity (WP) and water savings. Results showed that, on average, water savings were 23.0% in the SSI treatment compared to the SI treatment without significant differences in either yield or fruit composition. SSIA was the treatment with the lowest irrigation volumes and the highest yield and compared to SI7 over the three years with water savings ranging from 22 to 28%. Results from this Abstract study show that there is an opportunity to substantially save water in the Mediterranean citrus farming system using SSI drip irrigation systems. Chapter III proposes a methodology for estimating irrigation water needs for mandarins based on the use of capacitance water content probes (e.f. FDR). The calculation procedure is defined in three sequential parts: i) soil water content thresholds determination adapted to plants requirements for different phenological stages; ii) standardizing measurements from capacitance probes by using a hydrological simulation software to minimize equipment uncertainty; and finally iii) an extrapolation procedure for adapting critical soil water content thresholds to different soil conditions. Validating this strategy in a citrus orchard (Citrus clementina, Hort. Ex Tan. 'Arrufatina') a water saving of 26% was reached without significant differences in yield and increasing the WP by 33%. It was concluded that the determination and use of the soil water content thresholds is an alternative tool for scheduling irrigation. In the experiments described in the Chapter IV a leaf turgor pressure sensor (Yara ZIM-probe) was evaluated as plant water status indicator in order to f...

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“…As can be easily verified, potato crop yield varied in the four treatments, from a maximum of 39.1 ± 8.3 t/ha, in treatment T1 in which soil matric potentials was always higher than or equal to 65.6 kPa and CWSI equal to 0.3 to a minimum of 16.3 ± 2.4 t/ha in treatment T4 in which soil matric potential reached the value of 174.5 kPa and CWSI equal to 0.8. The high variability on crop yield observed within the treatments were associated to the variability of emitters' flow rate mainly due to possible clogging phenomena, rather than their quality or deficiency in field distribution uniformity [33,34]. When considering the effects of water stress on crop yield, by comparing treatments T1 and T2, as well as treatments T3 and T4 during the growth seasons 2014 and 2015, it is possible to notice that in both years the average yields in treatments T1 and T3 were higher than in T2 and T4.…”

Section: Crop Yield Response To Irrigation Management and Water Qualitymentioning

confidence: 99%

Effects of Saline and Deficit Irrigation on Soil-Plant Water Status and Potato Crop Yield under the Semiarid Climate of Tunisia

Ghazouani¹,

Rallo

Mguidiche

et al. 2019

Sustainability

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Water supplies have been decreasing in several semi-arid regions, and it is therefore necessary to adopt irrigation strategies aimed at maximizing water use efficiency. In this paper, the effects of saline and deficit irrigation on water use efficiency and on potato crop response, based on observations of soil and plant water status, were investigated. Experiments were carried out in Central Tunisia, by monitoring potato crop growth during two seasons in four distinct treatments (T1–T4), represented by two different irrigation doses and two water qualities. For irrigation scheduling purposes, thresholds of soil matric potential, soil water content and Crop Water Stress Index (CWSI) were identified with the aim to quantify the effects of water and/or salinity stress on the achievable yield. Experiments allowed verifying that crop yield is strongly affected by the seasonal amount and quality of applied water. Despite differences of crop yield between treatments T2, T3 and T4 not being statistically significant (P < 0.05), crop yield varied between 26.3 t/ha (T3 in 2015) to 16.3 t/ha (T4 in 2015). However, crop yield decline of 17.0 t/ha and 12.0 t/ha per each 100 mm decrease of applied water were observed under the application of water electrical conductivity of 1.6 dS/m and 4.1 dS/m respectively. On the other hand, an increase of 1.0 dS/m in water electrical conductivity caused a yield decline rate of about 10%. The results achieved showed that under the semi-arid climate of Tunisia, potato crop irrigation should be scheduled to avoid water deficit; however, the possibility to reduce water supply can be envisaged when water availability is limited, but with the awareness to accept the shortage of production. Finally, when saline water is the only source available to the farm, it is necessary to avoid the reduction of irrigation doses, to prevent excessive salt accumulation in the root zone with unavoidable effects on crop yield.

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Assessment of yield and water productivity of clementine trees under surface and subsurface drip irrigation

Cited by 46 publications

References 31 publications

Closure to “Modeling Approaches for Determining Appropriate Depth of Subsurface Drip Irrigation Tubing in Alfalfa” by Rocio Guadalupe Reyes-Esteves and Donald C. Slack

Closure to “Modeling Approaches for Determining Appropriate Depth of Subsurface Drip Irrigation Tubing in Alfalfa” by Rocio Guadalupe Reyes-Esteves and Donald C. Slack

Riego de precisión para la eficiencia hídrica en la agricultura Mediterránea

Effects of Saline and Deficit Irrigation on Soil-Plant Water Status and Potato Crop Yield under the Semiarid Climate of Tunisia

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