Benefits of low-frequency irrigation in citrus orchards

García-Tejero, Iván Francisco; Durán-Zuazo, Víctor Hugo; Muriel-Fernández, José Luis; Pérez‐Quintanilla, Damián; Jiménez-Bocanegra, J.A.

doi:10.1007/s13593-011-0025-1

Cited by 22 publications

(4 citation statements)

References 37 publications

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“…Irrigation frequency can affect plant growth in various ways. Decreased irrigation frequency is an important technique used to improve WUE of paprika [ 1 ] and citrus [ 2 ]. In winter wheat, increased irrigation frequency results in low evapotranspiration [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Bian

Liu

et al. 2016

PLoS ONE

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A suitable planting pattern and irrigation strategy are essential for optimizing winter wheat yield and water use efficiency (WUE). The study aimed to evaluate the impact of planting pattern and irrigation frequency on grain yield and WUE of winter wheat. During the 2013–2014 and 2014–2015 winter wheat growing seasons in the North China Plain, the effects of planting patterns and irrigation frequencies were determined on tiller number, grain yield, and WUE. The two planting patterns tested were wide-precision and conventional-cultivation. Each planting pattern had three irrigation regimes: irrigation (120 mm) at the jointing stage; irrigation (60 mm) at both the jointing and heading stages; and irrigation (40 mm) at the jointing, heading, and milking stages. In our study, tiller number was significantly higher in the wide-precision planting pattern than in the conventional-cultivation planting pattern. Additionally, the highest grain yields and WUE were observed when irrigation was applied at the jointing stage (120 mm) or at the jointing and heading stages (60 mm each) in the wide-precision planting pattern. These results could be attributed to higher tiller numbers as well as reduced water consumption due to reduced irrigation frequency. In both growing seasons, applying 60 mm of water at jointing and heading stages resulted in the highest grain yield among the treatments. Based on our results, for winter wheat production in semi-humid regions, we recommend a wide-precision planting pattern with irrigation (60 mm) at both the jointing and heading stages.

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Section: Introductionmentioning

confidence: 99%

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Bian

Liu

et al. 2016

PLoS ONE

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“…In this sense, it is necessary to apply different strategies for reducing water consumption and maximizing the water-use efficiency by encouraging sustainable practices (García-Tejero et al 2011a). Deficit irrigation (DI) has been widely demonstrated to be effective and sustainable under limiting water conditions by maximizing water productivity while stabilizing yield (García-Tejero et al 2011b). Many authors have reported that the response of citrus to DI depends mainly on the degree of water stress endured by the crop at different phenological stages (Goldhamer and Salinas 2000).…”

Section: Introductionmentioning

confidence: 99%

Impact of water stress on citrus yield

García-Tejero

Durán-Zuazo

Arriaga

et al. 2011

Agron. Sustain. Dev.

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Water shortage is becoming a severe problem in arid and semi-arid regions worldwide, reducing the availability of agricultural land and water resources. Deficit irrigation strategies can improve water-use efficiency and the sustainability of agro-ecosystems, although it is important to model the effects on yield loss due to irrigation water restrictions. This work estimates the water production function in citrus trees, determining the relationship between plant water stress and yield depression, as well as establishing a mathematical model for each phenological stage considered (flowering, fruit growth and ripening), and for the entire productive process. For three consecutive years (2006)(2007)(2008), four regulated deficit irrigation treatments plus a control (100% crop water evapotranspiration (ET C )) were implemented in 13-year-old citrus trees (Citrus sinensis L. Osb. cv. Navelina). Different water production functions were determined for each phenological stage, establishing the relationship between the irrigation water stress and crop yield. Our results show that the fruit growth and flowering stages were the most sensitive periods in relation to irrigation water deficit and yield loss. Water stress close to 50% of ET C during the flowering stage would impose a yield loss of up to 20%, whereas this same water stress level during the fruit growth or ripening stages would result in yield losses of nearly 10% and 6%, respectively. The adjustment with cross terms (r 2 =0.87) estimated the yield loss with good accuracy, being very similar to data measured in each study season. Consequently, the combined effect of deficit irrigation in different stages would be an additive-multiplicative model, considering that the effect of water stress in previous periods determined the crop yield response. Our model indicated that the crop water production function under deficit irrigation programmes would have a quasi-linear relation for water deficits below to 40% ET C . The previous model functions did not enable us to establish an accurate relationship when the water stress was applied in different phenological stages. Thus, this new interpretation is valuable to improve our knowledge and predict the impact of regulated deficit irrigation and have potential application in precision water stress and sustainable irrigation scheduling for citrus.

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“…The measurement of the CWSI is established by the relationship between the actual canopy temperature (T c ) data and the theoretical canopy temperature data, obtained from two different thresholds, namely a lower limit (when plant transpiration is maximum under full irrigation when stomata are completely opened) and an upper limit (when plants are not transpiring because they have been subjected to conditions of extreme water stress leading to complete closure of stomata) [9,26,27]. Furthermore, mandarin plant's water stress can be determined by estimating the canopy temperature [28][29][30][31] at any given time. Nonetheless, the sensitivity of mandarins to air vapor pressure is very high, thereby minimizing the rate of transpiration under high VPD conditions and making the use of only canopy temperature very challenging [9].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Assessment of Mandarin Crop Water Stress Index

Appiah

Lan

et al. 2022

Sensors

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The use of plant-based indicators and other conventional means to detect the level of water stress in crops may be challenging, due to their difficulties in automation, their arduousness, and their time-consuming nature. Non-contact and non-destructive sensing methods can be used to detect the level of water stress in plants continuously and to provide automatic sensing and controls. This research aimed at determining the viability, efficiency, and swiftness in employing the commercial Workswell WIRIS Agro R infrared camera (WWARIC) in monitoring water stress and scheduling appropriate irrigation regimes in mandarin plants. The experiment used a four-by-three randomized complete block design with 80–100% FC water treatment as full field capacity and three deficit irrigation treatments at 70–75% FC, 60–65% FC, and 50–55% FC. Air temperature, canopy temperature, and vapor pressure deficits were measured and employed to deduce the empirical crop water stress index, using the Idso approach (CWSI(Idso)) as well as baseline equations to calculate non-water stress and water stressed conditions. The relative leaf water content (RLWC) of mandarin plants was also determined for the growing season. From the experiment, CWSI(Idso) and CWSI were estimated using the Workswell Wiris Agro R infrared camera (CWSIW) and showed a high correlation (R2 = 0.75 at p < 0.05) in assessing the extent of water stress in mandarin plants. The results also showed that at an altitude of 12 m above the mandarin canopy, the WWARIC was able to identify water stress using three modes (empirical, differential, and theoretical). The WWARIC’s color map feature, presented in real time, makes the camera a suitable device, as there is no need for complex computations or expert advice before determining the extent of the stress the crops are subjected to. The results prove that this novel use of the WWARIC demonstrated sufficient precision, swiftness, and intelligibility in the real-time detection of the mandarin water stress index and, accordingly, assisted in scheduling irrigation.

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Benefits of low-frequency irrigation in citrus orchards

Abstract: International audienc

Cited by 22 publications

References 37 publications

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Responses of Winter Wheat Yield and Water Use Efficiency to Irrigation Frequency and Planting Pattern

Impact of water stress on citrus yield

Real-Time Assessment of Mandarin Crop Water Stress Index

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