Sustainable Irrigation Research Articles

Leaching Efficiency During Autumn Irrigation in China’s Arid Hetao Plain as Influenced by the Depth of Shallow Saline Groundwater and Irrigation Depth, Using Data from Static Water-Table Lysimeters and the Hydrus-1D and SIMDualKc Models

The need for controlling salinity in arid zones is essential for sustainable agricultural production and irrigation water use. A case study performed for two years in Hetao, Inner Mongolia, China, is used herein to rethink the contradictory issues of arid lands represented by water saving and controlling soil and water salinity. Two sets of static lysimeters, where water table depths (WTDs) were fixed at 1.25, 150, 2.00, and 2.25 m, were continuously monitored, and soil water and solute data were used to calibrate and validate two models: the soil water balance model SIMDualKc and the deterministic soil water and salt dynamics model HYDRUS-1D. Once accurately calibrated, the models were used to simulate maize water use, percolation, and capillary rise, along with the observed variables for the actual WTD and the autumn irrigation applied. Simulation scenarios also considered agricultural system degradation and dynamic water table behavior. Results have shown that large leaching efficiencies (Lefs) were obtained for large irrigation depths in cases of shallow water tables, but higher Lefs corresponded to high application depths when the water table was deeper. Agricultural system degradation, particularly increased groundwater salinity, lowered Lef, regardless of WTD. Conversely, water savings were minimal and only achievable when considering the dynamic nature of groundwater. These results indicate that there is a need to define different WTDs based on soil characteristics that influence fluxes and root zone storage, as well as the impacts of newly installed drainage systems aimed at salt extraction.

Eye-tracking study on the impact of 'EU organic' and 'sustainable irrigation' logos on consumer acceptance of olive oil.

This study investigates to what extent the presence of the EU organic (EU‑O) logo and a sustainable irrigation (SI) logo on extra virgin olive oil (EVOO) labels affects (i) consumers expectations and purchase intention based on label information and (ii) acceptance of olive oil when tasted under informed versus blind conditions. A panel of 94 consumers took part in the study. Attention paid to label components during the task designed to evaluate the logos' effect on expectations was recorded by means of an eye-tracker. Compared with the control (without logos), the presence of EU‑O and SI logos on the EVOO label significantly influenced participants' associations (i.e. price, sustainability, consumption occasions, etc.). A halo effect was detected, so that both logos led consumers to anticipate higher expected liking compared with the control. A synergic effect between both logos was detected. Eye-tracker data revealed that participants whose liking expectations were improved by the EU‑O logo paid more attention to it than those whose expectations did not improve. This relation between attention and expectation improvement was not observed with the SI logo, likely because participants were unfamiliar with it. Beyond expectations, the presence of logos on labels significantly increased the liking scores given by the participants when EVOOs were tasted, which resulted in a higher percentage of participants' willingness to purchase. Consumers perceived added value for the sustainable labeled food, which positively affected their liking and purchase intentions. This may encourage food production companies to adopt more sustainable practices. © 2024 Society of Chemical Industry.

GIS‐based surface irrigation potential assessment of Gololcha River Watershed, Awash Basin, Ethiopia

AbstractThe Gololcha River Watershed is lacking comprehensive assessment of land suitability for surface irrigation, available water potential, and prioritized irrigable areas. This study aims to evaluate the potential of land and water resources for surface irrigation in the Gololcha River Watershed. The study employed a multi‐criteria analysis approach using the analytical hierarchy process (AHP) and ArcGIS to assess land suitability, considering factors like slope, land use/cover, soil characteristics, and proximity to water sources. The observed mean monthly water flow potential for each sub‐watershed was statistically evaluated, and the area ratio approach was used to transfer discharges from gauged sites to the site of interest. Irrigation water requirements for three major crops in the study area were calculated using the CROPWAT8.0 model. The findings revealed an average water availability for irrigation of 2.70 m3/s/month, 1.10 m3/s/month, and 1.03 m3/s/month for the Kurkura, Midagdu, and Wefi sub‐watersheds, respectively, with a total annual river flow of 161 m3/s. Based on the suitability analysis, 2508 ha (7.27%) of the watershed area was classified as highly suitable for surface irrigation, 16,420 ha (47.565%) as moderately suitable, 1502 ha (4.35%) as marginally suitable, and 14,029 ha (40.71%) as unsuitable. The overall surface irrigation potential, aligned with available water, was estimated at 4872.58 ha. However, due to water limitations, only 14.15% of the total suitable land can be irrigated using existing flows. The study highlights the significant potential for expanding surface irrigation in the Gololcha River Watershed, particularly during the rainy seasons when substantial water flows are available. The findings provide valuable insights for developing sustainable irrigation strategies, enhancing agricultural productivity, and contributing to food security in the region.

Nitrogen requirements of canola (Brassica napus L.) at sustained deficit irrigation levels in central Free State, South Africa

In South Africa canola (Brassica napus L.) is cultivated in rotation with wheat under winter rainfall in the Western Cape province. Expansion of the crop to the other eight provinces is propagated to reduce a shortage of locally produced plant oils. At the same time, canola may serve as a rotational crop for wheat in these summer rainfall provinces. In central Free State, agronomic information for canola production is lacking. An experiment with a line source sprinkler irrigation system was therefore conducted to establish the influence of water application levels (175, 233, 295, 351 and 420 mm) in combination with nitrogen (N) application rates (0, 70, 140, 210 and 280 kg ha−1) on the branches, pods and seeds per canola plant. The biomass and seed yields of canola were also measured, allowing calculation of harvest indices. All six variables were strongly influenced by the interaction of water and N applications. An optimal seed yield of 2.907 kg ha−1 was estimated with a 351 mm water application and a 280 kg ha−1 N application. This resulted in a water use efficiency of 8.28 kg seed ha−1 mm−1 water and a nitrogen use efficiency of 10.38 kg seed kg−1 N.

Irrigation Water Management and Food Security in Nigeria

Food security remains a persistent challenge in Nigeria, a country with a rapidly growing population and a heavy reliance on rain-fed agriculture. Effective irrigation water management is crucial to improving agricultural productivity and addressing this critical issue, particularly in the face of climate change and increasing water scarcity. This study investigates the current state of irrigation water management and its impact on food security in Nigeria. The research employs a mixed-methods approach, combining an extensive literature review with field surveys, interviews, and focus group discussions with key stakeholders, including farmers, water resource managers, policymakers, and subject matter experts. The findings reveal significant gaps in Nigeria's existing irrigation water management system, including outdated infrastructure, inefficient water distribution, limited access to irrigation technology, and poor coordination among relevant government agencies and agricultural extension services. The study explores the multifaceted relationship between irrigation water management and food security, highlighting the impact of water availability, quality, and accessibility on crop yields, livestock production, and overall agricultural output. The analysis also examines the socioeconomic and environmental implications of poor irrigation water management, such as reduced farm incomes, food price volatility, and environmental degradation. Based on the research findings, the study proposes a comprehensive framework for sustainable irrigation water management in Nigeria. This framework emphasizes the integration of technological innovations, policy reforms, institutional strengthening, and community-based approaches to enhance the efficiency, equity, and resilience of the irrigation system. Key elements of the framework include modernizing irrigation infrastructure, promoting precision agriculture techniques, improving water governance and stakeholder coordination, and enhancing the capacity of farmers and water user associations. The implications of this study are far-reaching, as it provides policymakers, development agencies, and agricultural practitioners with a thorough understanding of the critical role of irrigation water management in achieving food security in Nigeria. The proposed framework offers a roadmap for the implementation of sustainable irrigation practices, which can contribute to increased agricultural productivity, improved rural livelihoods, and enhanced national food security. The findings of this research also offer valuable insights for other developing countries facing similar challenges in the realm of irrigation water management and food security.

The Effect of Sustained Deficit Irrigation and Different Irrigation Methods on Yield and Evapotranspiration of Second-Crop Soybeans in the Mediterranean Basin

The Effect of Sustained Deficit Irrigation and Different Irrigation Methods on Yield and Evapotranspiration of Second-Crop Soybeans in the Mediterranean Basin

Optimizing the radiation synthesis and swelling of agar-based acrylate superabsorbent hydrogel for irrigation water conservation

This study reports the synthesis of novel agar/poly methacrylic acid/poly acrylic acid (AG/PMAc/PAc) superabsorbent hydrogels via gamma radiation and their subsequent urea modification to enhance swelling and water retention for agricultural applications. The superabsorbent hydrogels were prepared by irradiating aqueous mixtures of varying agar concentrations with methacrylic acid/acrylic acid (MAc/Ac) monomers, followed by urea treatment at different cycles and concentrations. The morphological characteristics and chemical structures were confirmed by SEM and FTIR, respectively. The maximum swelling occurred at 6 % agar and 1 % urea modification. Remarkably, the 1 % urea-modified hydrogel displayed a 41.1 % swelling increase and 236.4 % enhancement after the second modification cycle compared to unmodified samples. Water retention studies showed the modified hydrogel retained 53.2 % moisture after 14 days versus the complete drying of unmodified hydrogels. Soil application studies demonstrated the modified hydrogel increased moisture content by 177.3 % after 20 days, promoting better growth with 30 % more leaves and 38.9 % higher stem length in Vicia faba plants versus controls. This novel radiation-synthesized, urea-modified hydrogel with exceptional swelling and moisture retention capabilities shows promising potential for sustainable agricultural irrigation and crop productivity enhancement under water-deficit conditions.

FUNDAMENTALS OF DESIGNING INTELLIGENT IRRIGATION SYSTEMS

Smart irrigation systems integrate technology with agriculture to optimize water usage, reduce waste, and increase crop yields. This article explores the design of smart irrigation systems, discussing the essential components, methodologies, and technological innovations that enhance the efficiency and effectiveness of irrigation practices. The study identifies key challenges in system design and proposes solutions based on current trends in sensor technology, data analytics, and automation. The results of this investigation highlight the importance of interdisciplinary collaboration and innovative strategies to create robust, scalable, and sustainable irrigation solutions.

Comparative analysis of FAO dual Kc, Priestley‐Taylor and flux variance similarity methods in partitioning evapotranspiration from flood‐irrigated rice fields

AbstractAccurate quantification of evapotranspiration (ET) and its bifurcation into productive transpiration (T) and unproductive evaporation (E) are essential for the successful implementation of sustainable irrigation practices. This study compares the performances of three distinct methods for partitioning ET into E and T fluxes from flood‐irrigated rice fields. These methods include: i) the FAO dual Kc‐ETo model, which utilizes Penman–Monteith (PM) estimates of reference ET and crop‐specific scaling factors; ii) the Priestley‐Taylor (PT) method, which relies on radiation‐driven energy balance at the canopy surface; and iii) the flux variance similarity (FVS) method, which utilizes high‐frequency eddy covariance (EC) measurements of carbon and water vapour fluxes. Meteorological, phenological and hydrological parameters were monitored over two winter seasons in a paddy field, replicating site‐specific management strategies. The cumulative ETs obtained from the PM, PT and FVS methods were 445 mm, 300 mm and 356 mm, respectively, for season 1 and 428 mm, 321 mm and 375 mm, respectively, for season 2. The accuracy of the ET estimation and partition methods was assessed against independent measurements of ET and E using a lysimeter and a microlysimeter. The results demonstrated that the EC‐based FVS method offers superior accuracy in both quantifying (R2 = 0.67, RMSE = 0.70 mm) and partitioning (R2 = 0.51, RMSE = 0.76 mm) ET fluxes, followed by the PM‐based FAO dual Kc‐ETo and PT methods. Evaporation accounted for 29 ± 5% of consumptive water use, highlighting an opportunity for the implementation of water‐saving strategies, particularly during vegetative and transplantation stages. The findings of the path analysis indicate that vegetative and radiation factors influence ET variation, while meteorological and soil factors significantly impact T variation.

A Review on Enhancing Crop Yield through Smart Irrigation

Improving irrigation efficiency is crucial for the sustainability of agricultural production. The rise of smart irrigation techniques, particularly with advancements in wireless communication systems, monitoring devices, and control techniques, has the potential to significantly enhance irrigation efficiency. This study explores a broad spectrum of scientific approaches to smart irrigation, comparing and analyzing various methodologies to understand the effectiveness of these technologies. The research spans a wide range of topics, including irrigation methods, decision-making processes, and the technologies employed in smart irrigation. The information was meticulously gathered from a variety of scientific papers, with a particular focus on documents published over the past four years by authors from around the globe. Special attention was also given to various irrigation initiatives that demonstrate the practical application of these techniques. The subsequent evaluation in this study focuses on the critical components of smart irrigation, such as real-time irrigation scheduling, the Internet of Things (IoT), the significance of a reliable internet connection, smart sensing technologies, and energy harvesting. These components are essential for developing efficient and sustainable irrigation practices that can meet the challenges faced by modern agriculture.

Potential of sustained deficit irrigation to enhance biological and nutritional quality of pomegranate fruit during storage

BackgroundWhile water availability is important for quality at harvest, it also continues to influence the quality of pomegranates during storage. Reducing the amount of irrigation, in addition to water saving has different effects on bioactive compounds of pomegranate during storage time. This study was conducted to determine the influence of irrigation level on fruit quality changes during storage period of two commercial Iranian pomegranate cultivars (‘Shishecap’ and ‘Malas-Yazdi’). Sustained deficit irrigation (SDI) was applied to plants that received 75% (moderate stress) or 50% (severe stress) of their normal water requirement. A control group received 100% of their water requirement.ResultsAt harvest time and during storage period, fruit weight loss and some biochemical traits such as fruit total soluble solids (TSS), titratable acidity (TA), pH, total phenolic compounds (TPC), total anthocyanins content (TAC), antioxidant activity and vitamin C were measured in pomegranate fruits. Also, the quantity of the produced product was also measured at the time of harvesting. Results indicated that control fruits exhibited more weight loss than those produced under water deficit during the storage period in both years. According to results, fruit TSS, TAC, and antioxidant activity significantly increased during storage period but fruit TA and vitamin C significantly decreased throughout storage period. Also, reduction in irrigation level resulted in a decline in the yield.ConclusionsThis study revealed a crucial link between irrigation level and the quality of pomegranate fruits, despite a reduction in the yield. This included affecting weight loss and the content of bioactive compounds, both at harvest and during storage.

TiO2 NPs as a Promising Strategy for Crop Conservation Resulting from Deficit Irrigation in Fragaria × ananassa Cv. Camarosa

ABSTRACT Nanoparticle-based methods can compensate for yield and quality loss of crops affected by drought. The current study, performed in a factorial experiment based on a completely randomized design, addressed to evaluate the effect of titanium dioxide nanoparticles (TiO2 NPs) at 0, 10, 20, and 30 mg L−1 under three irrigation regimes (full irrigation, partial root drying (PRD), and sustained deficit irrigation (SDI)) on Fragaria × ananassa cv. Camarosa. Results revealed that the PRD stress had more adverse effects on F. ananassa cv. Camarosa than SDI stress. Assessment of the behavior of TiO2 NPs in this study elucidated that mean productivity, yield stability index, and fruit number in plants grown under full irrigation increased when treated with 10 mg L−1 TiO2 NPs. Under the deficit irrigation, including PRD and SDI, all levels of TiO2 NPs mitigated mean productivity and yield stability index by ameliorating the fruit number and water use efficiency (WUE) and decreasing transpiration. Flowering and fruit set times were reduced by TiO2 NPs and deficit irrigation while their periods were enhanced by ones. It seems that when the strawberry was exposed to TiO2 NPs exhibited approximately drought tolerance. These nanoparticles ameliorated photosynthesis and mineral uptake and allocated dry matter to the root. These alterations can contribute to crop production in deficit irrigation strategies.

Evaluating the need and feasibility of micro-irrigation systems for sustainable irrigation.

Irrigation is crucial for sustainable agriculture and improving farm yields, but a significant gap exists between the irrigation potential created and its actual utilization. This gap is due to losses in canal conveyance and the inefficiency of conventional irrigation methods within canal command areas. Most modernization efforts in India focus on implementing micro-irrigation for tube well systems, addressing the problem of water table decline experienced in many districts. With this context, the present study examines the command area of Gadarjudda minor of the Upper Ganga Canal in Haridwar district, Uttarakhand, India, to assess the present state of the canal by conducting on-site surveys and feasibility of micro-irrigation by evaluating the viability of replacing minor canals with a gravity flow piped irrigation network. The evaluation involves assessing the current canal status, designing the gravity flow piped irrigation network, and conducting a social survey to determine farmers' willingness, awareness, and purchasing capacity toward adoptin of micro-irrigation systems on their farms. The study identifies high conveyance loss and poor maintenance in conventional irrigation methods, highlighting the importance of micro-irrigation in the study area. The profile of the minor canal is adequate to support gravity flow in the pipe network, with velocity and pressure head within permissible limits. A social survey revealed that 85% of farmers are willing to adopt micro-irrigation, but low purchasing capacity (36%) hampers its adoption. The study concludes that micro-irrigation is viable in the Gadarjudda minor canal command area as long as a piped irrigation network is implemented and farmers receive government subsidies and proper training.

Assessment of CROPWAT 8.0 model accuracy under deficit irrigation scheduling: A sustainable path toward smart water supply

ABSTRACT As the world confronts mounting challenges to water security, efficient irrigation becomes ever more critical. Escalating water scarcity challenges necessitate innovative smart irrigation solutions. This study investigates the potential of integrating deficit irrigation (DI) with the CROPWAT 8.0 model for sustainable and water-productive irrigation. This research evaluated the model's accuracy in generating DI schedules at 70% field capacity (FC) (T1) compared to schedules derived from frequency domain reflectometry (FDR) soil moisture sensors at 70% FC (T2). The results demonstrated economic viability and strong accuracy for T1 with consistently lower values of mean absolute error (3.6165 and 4.3987) and root mean square error (4.4447 and 5.5055) while compared to T2 across two years. In addition, T1 achieved significant water savings (43.47 and 45.16%) alongside higher water productivity (8.11 and 8.22 kg m−3), respectively, for both the years compared to full irrigation (FI). These findings highlight CROPWAT 8.0 model–driven DI scheduling as a promising smart irrigation approach for tackling water scarcity, offering economic benefits to farmers while promoting water security.

Urban Agriculture: Exploring Its Potential, Challenges, and Socio-Economic Impacts

Urban agriculture, the practice of growing and cultivating food within urban and peri-urban areas, has garnered increasing attention in recent years due to its potential to address various challenges related to food security, environmental sustainability, and socio-economic development. This review article provides a comprehensive exploration of urban agriculture, examining its multifaceted potential, the challenges it faces, and its socio-economic impacts in greater detail. The article delves into the diverse forms of urban agriculture, ranging from rooftop gardens and community allotments to vertical farming and aquaponics, highlighting their contributions to local food production, green spaces, and community cohesion. Additionally, the review discusses the challenges and constraints associated with urban agriculture in more depth, including issues related to land availability, soil contamination, water management, and regulatory hurdles. Furthermore, it examines the socio-economic impacts of urban agriculture with a nuanced perspective, exploring how it can lead to improved access to fresh produce, job creation, poverty alleviation, and social empowerment at both individual and community levels. By shedding light on the complexities of urban agriculture and providing a more comprehensive analysis of its potential and challenges, this review aims to inform policymakers, urban planners, researchers, and practitioners about the transformative potential of urban agriculture and the need for supportive policies and interventions to foster its sustainable growth and maximize its benefits for urban communities, the review dives deeper into the various forms of urban agriculture, providing detailed insights into their unique characteristics, benefits, and challenges. Rooftop gardens, for example, are explored not only for their contribution to local food production but also for their role in mitigating urban heat island effects, improving air quality, and enhancing building energy efficiency. Community allotments are examined in the context of social cohesion, community engagement, and opportunities for education and skill-building. Vertical farming and aquaponics are discussed in terms of their innovative technologies, resource efficiency, and potential scalability to meet the growing demand for fresh produce in urban areas, the review delves into the challenges and constraints associated with urban agriculture, offering nuanced analyses of their underlying causes and potential solutions. Land availability issues are examined in relation to urban sprawl, land-use planning policies, and competing demands for space in densely populated cities. Soil contamination concerns are explored in light of industrial legacies, brownfield redevelopment, and strategies for soil remediation and regeneration. Water management challenges are discussed in the context of water scarcity, pollution, and the need for sustainable irrigation practices in urban agriculture. Regulatory hurdles are analyzed in terms of their impact on the viability and scalability of urban agriculture initiatives, highlighting the importance of supportive policy frameworks, zoning regulations, and land-use planning strategies. the review provides a comprehensive examination of the socio-economic impacts of urban agriculture, drawing on empirical evidence from case studies and research findings. It explores how urban agriculture can contribute to improved food access and nutrition outcomes, particularly for vulnerable populations living in food deserts and low-income neighborhoods.

Integrating GEE and IWQI for sustainable irrigation: A geospatial water quality assessment

The surface and sub-surface water quality is one of the decisive parameters for sustainable agriculture and water resources management. Deteriorating water quality impacts the irrigation, crop production, and human health. Therefore, the present work made an attempt to identify the water suitability for irrigation using the contemporary approach i.e. Irrigation Water Quality Index (IWQI) and Zone mapping using GIS techniques, and demonstrated for case of Wadhwan, Gujarat India. Three indices i.e., NDVI, NDWI, and LSWI were mapped using Landsat satellite imagery, whereas, Watermask index was mapped using Sentinel II satellite imagery for the assessment of the availability of water in different forms. The IWQI has applied to categorize the water quality as severe, high, moderate, low, and no restriction. The IWQI in the study area ranges from 6.4 to 62.5. The overall the water quality of study area shows that the 13.64 % of the region in severe restriction range, 56.82% in high restriction range, and 29.54% in moderate restriction range, which is in alarming for farmers and policy makers. The GIS zoning map effectively visualized the spatial distribution of IWQI, helping decision-makers to identify severity zones. Furthermore, the Piper diagram analysis has been performed, which shows that the water quality of the study area falls under mixed Ca2+-Mg2+-Cl-, mixed Ca2+-Na+-HCO3-, and Na-HCO3 types. The results revealed that major areas are in moderate to severe restriction zones, lying under deteriorated water quality, and need immediate attention for improvement before use. The IWQI advances SDG 2 (Zero Hunger) by optimizing water quality for crop production and SDG 6 (Clean Water and Sanitation) by ensuring sustainable water resource management, while indirectly supporting SDG 15 (Life on Land) through improved soil health and land management practices.

Public irrigation decision support systems (IDSS) in Italy: Description, evaluation and national context overview

This survey comprehensively examines the public irrigation decision support systems (IDSS) in Italy, offering a detailed description, analysis and evaluation of their features. The study investigates the agrometeorological networks and infrastructures that support Italian IDSS, providing a clearer understanding of the national context. The evaluation criteria include relevant factors such as soil moisture monitoring, crop water requirements (CWR) estimation models, biophysical parameters along with their spatial and temporal resolutions, irrigation planning and decision support visualization. Additionally, the assessment covers accessibility, scalability and interoperability of these systems. The survey also highlights the strengths and weaknesses of various IDSS, such as IRRIFRAME, IRRISIAS and IRTO, discussing their operational methodologies, data integration and regional coverage. The aim is to provide insights that facilitate advancements in sustainable irrigation management practices and address key challenges for future developments at both regional and national levels. This comprehensive evaluation seeks to enhance the effectiveness of IDSS in promoting sustainable water management in agriculture across Italy.

Integrated assessment of groundwater quality for sustainable irrigation in drought-prone central districts of Odisha, India

Crop productivity relies on the quantity and quality of irrigation water, with groundwater quality playing a major role. Exploitation of groundwater for irrigation is slowly increasing in central districts of Odisha. A study was carried out in these areas to assess the groundwater quality for irrigation for sustainable use of the groundwater resources. This was done by developing a Water Quality Index (WQI) for eight parameters. The groundwater quality was assessed using a framework that utilised the entropy weight approach and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). This framework was employed to determine the relative proximity of each solution to the ideal solution. The TOPSIS range is divided into three categories: low quality (less than 0.1), medium quality (0.1–0.5), and good quality (0.5–0.9). The low-quality category has a percentage of 6.45%, categorized as poor quality and unfit for drinking and irrigation uses; the medium-quality category has 52.07%, and the good quality category has 41.47% of the area falls under the very good category. These parameters are essential when considering water usage for agriculture, especially in regions where farmers use fertilizers and pesticides extensively to enhance crop production.

Sustainable Green Irrigation: A Comparative Economic and Environment Analysis of Solar VS Micro-Hydroelectric Tube Wells

Sustainable Green Irrigation: A Comparative Economic and Environment Analysis of Solar VS Micro-Hydroelectric Tube Wells

A synoptic review of deficit irrigation methods: sustainable water-saving strategies in vegetable cultivation

ABSTRACT It is elusive and highly challenging to sustain the productivity of vegetable commodities under limited available natural resources and anticipated future climatic scenarios. Amongst available natural resources, water remains the most limiting factor. Present vegetable cultivation practices involve the utilization of excessive quantities of water, thereby leading to the wastage of precious water resources. Therefore, sustainable management of irrigation water is crucial for future vegetable cultivation, as most vegetable crops are vulnerable to water scarcity at different growth stages, which can result in yield and post-harvest quality losses. Adoption of deficit irrigation (DI) is one of the sustainable irrigation water management approaches. DI is a sustainable water-saving approach, as irrigation water is applied in limited or lower quantities than the actual evapotranspiration-based crop water requirement. Strategic application of water at the right time and quantity with the right technique can greatly improve water use efficiency and water productivity. It could also enhance the post-harvest quality with marginal yield loss. Yield losses whatsoever could be compensated by expanding agricultural areas in water-scarce zones by adopting the DI strategy. This review discusses the concept and types of DI and examines its implications for the morpho-physiology and productivity of commercially important vegetable crops.