Optimal irrigation management for avocado (cv. 'Hass') trees by monitoring soil water content and plant water status

Beyá-Marshall, V.; Arcos, Emilia; Seguel, Óscar; Galleguillos, Mauricio; Kremer, Cristián

doi:10.1016/j.agwat.2022.107794

Cited by 10 publications

(3 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, precision irrigation pursues the objective of adapting water supplies to actual crop needs on a small scale (Fernández et al, 2019;Jiménez et al, 2022). Precision irrigation is still underused (Al-Agele et al, 2021a;Beyá-Marshall et al, 2022), but farmer interest is high and would be rapidly implemented if supported by adequate technical dissemination entrusted to new professional figures (Bwambale et al, 2022;Silva et al, 2022).…”

Section: The Role Of Innovations In Irrigationmentioning

confidence: 99%

Exploring innovation adoption behavior for sustainable development of Mediterranean tree crops

Timpanaro

Pecorino

Chinnici

et al. 2023

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

IntroductionThe combination of knowledge, personal skills and company resources influences, all things being equal, such as the availability of new technologies, market conditions and other factors external to the company, farmers in their innovation choices. This study is an attempt to understand which psychological constructs influence the decision-making process of farmers specialized in typical Mediterranean crops with regard to innovation. Previous studies on the adoption of agricultural innovations have often considered socio economic characteristics and ignored the underlying motivational factors that influence the behavioral intention of farmers.MethodsThis study adopted three socio-psychological constructs, Attitude (ATT), Subjective Norm (SN), and Perceived Behavioral Control (PBC), derived from the Theory of Planned Behavior (TPB), and proposed three new constructs, Perceived Innovations Characteristics (PIC), Benefits (B), and Transferability (T), thus using an Extended Model of the Theory of Planned Behavior.ResultsThe outcome of the multiple regression revealed that farmers' intention (I) to adopt sustainable irrigation innovations is positively influenced by attitude (ATT), subjective norm (SN), and perceived innovation characteristics (PIC). This last construct had mediating effects on the indirect relationships between PBC, benefits (B), transferability (T), and intention (I).DiscussionThe results provide numerous insights, useful both for outlining the demand for innovation and for calibrating future policies aimed at the primary sector, especially on the sustainable management of irrigation resources. In particular, the analyses carried out highlight the importance of factors external to the company as key levers in shaping the demand for innovations.

show abstract

Section: The Role Of Innovations In Irrigationmentioning

confidence: 99%

Exploring innovation adoption behavior for sustainable development of Mediterranean tree crops

Timpanaro

Pecorino

Chinnici

et al. 2023

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

show abstract

“…Soil moisture sensors have the disadvantage of the great variability in soil properties (texture, stoniness, organic matter, etc.) and their effects on soil water distribution; in some cases (with sprinkler irrigation systems), a large number of probes must be installed to obtain a representative measurement of soil moisture [145,149,150]. A drawback of soil measurements is that they do not provide a direct sign of plant water status, creating uncertainty over whether the irrigation is being applied according to the water requirements of the tree.…”

Section: Soil Water Content In Relation To Water Stressmentioning

confidence: 99%

Irrigation Alternatives for Avocado (Persea americana Mill.) in the Mediterranean Subtropical Region in the Context of Climate Change: A Review

Rodríguez

Durán-Zuazo

Tarifa³

et al. 2023

Agriculture

View full text Add to dashboard Cite

Due to congenital features, avocado (Persea americana Mill.) trees are substantial water users relative to other fruit trees. The current growing deficiency of water resources, especially in arid and semi-arid avocado-producing areas, has led to the demand for more sustainable water-saving measures. The objective of this review was to analyze the role of deficit irrigation as a strategy to face climate change and water scarcity through achieving efficiency, saving water, and maximizing the benefits that could be achieved at the level of the irrigated agricultural system. Particular attention is devoted to studies performed in the subtropical Mediterranean climate, in which irrigated avocado orchards are common. These studies analyzed irrigation demand, deficit irrigation, and determination of water status through physiological parameters, leading to possible sustainable irrigation programs for avocado in the context of water shortage scenarios. Through these insights, we conclude that under the current climatic circumstances with respect to available water resources, avocado farming requires sustainable resilience strategies to reduce irrigation water consumption without affecting the yield and quality of the fruits. Water stress inevitably affects the physiological processes that determine yield. Therefore, an admissible yield loss is required with smaller fruits and water savings made through deficit irrigation strategies. In addition, modern consumers tend to prefer foods based on sustainability, i.e., there is a high demand for socially responsible and environmentally friendly products.

show abstract

“…To estimate

θ

, instruments such as frequency domain reflectometry (FDR) are commonly used both in agriculture (Beyá‐Marshall et al, 2022; Faúndez Urbina et al, 2022) and forestry ecosystems (Blume et al, 2008, 2009; Raab et al, 2015). Although FDR is valuable for water management assessment, it has limitations for forestry ecosystems where deep and heterogeneous soils and rooting systems are found.…”

Section: Introductionmentioning

confidence: 99%

Estimating soil water content in a thorny forest ecosystem by time‐lapse electrical resistivity tomography (ERT) and HYDRUS 2D/3D simulations

Faúndez Urbina,

Alanís,

Ramírez

et al. 2023

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

Determination of soil volumetric water content in forest ecosystems is particularly challenging due to deep rooting systems and unknown soil vertical and spatial heterogeneity. This research aims to test two undisturbed methods, electrical resistivity tomography (ERT) and HYDRUS 2D/3D, for 2D determination in a thorny forest ecosystem. The experiment consisted of infiltrating 10 L of water lasting 60 min. During infiltration, ERT measured apparent resistivity by time‐lapse measurements, and was measured with an FDR probe (EnviroSCAN) at 33, 63, 83, 97, and 163 cm depth close to the infiltration site. At the end of infiltration, a soil pit was dug, and 100 measurements of were performed with a TDR in a 10 × 10 cm regular grid. Archie law transformed soil resistivity (ERT) into using manual calibration, verified by an independent dataset. The 2D profile obtained by ERT was qualitatively compared with the HYDRUS 2D/3D one. HYDRUS 2D/3D was parametrized with calibrated parameters obtained with HYDRUS 1D using 106 days of obtained with EnviroSCAN. The results of HYDRUS 1D calibration and verification were satisfactory, with RMSE and Nash‐Sutcliffe coefficients ranging from 0.021 to 0.034 cm3 cm−3 and 0.11 to 0.77, respectively. The forward HYDRUS 2D/3D simulation disagrees with EnviroSCAN data for 33 cm depth. However, it follows the trend with near to zero variation of water content at 63 cm depth. Water content determination by ERT was satisfactory with RMSE for calibration and verification of 0.017 and 0.021 cm3 cm−3. HYDRUS 2D/3D and ERT comparisons were not equal, with a shallower wetting front by ERT and a deeper one for HYDRUS. Still, both wetting fronts agree with the wetting depth estimated by EnviroSCAN. We conclude that both methods are an alternative for determination in heterogeneous and deep soils of forest ecosystems.

show abstract

Optimal irrigation management for avocado (cv. 'Hass') trees by monitoring soil water content and plant water status

Cited by 10 publications

References 40 publications

Exploring innovation adoption behavior for sustainable development of Mediterranean tree crops

Exploring innovation adoption behavior for sustainable development of Mediterranean tree crops

Irrigation Alternatives for Avocado (Persea americana Mill.) in the Mediterranean Subtropical Region in the Context of Climate Change: A Review

Estimating soil water content in a thorny forest ecosystem by time‐lapse electrical resistivity tomography (ERT) and HYDRUS 2D/3D simulations

Contact Info

Product

Resources

About