Deficit Irrigation - Science topic

Effect of Deficit Irrigation on the Water Productivity of Onion (Allium Sepa L.) Crop Using Drip Irrigation System at Arba Minch, Ethiopia

Currently, the world is facing a serious agricultural water crisis, which also affects grassland areas. Alfalfa, a key perennial forage legume, consumes about 10% of China’s pastoral irrigation water. Reducing irrigation generally results in a loss of hay yield, but the effects on alfalfa quality and its relationship to water use are less clear. In...

Managing turfgrass in arid and semiarid areas of the southern United States is becoming increasingly challenging due to prolonged drought and diminishing water resources. Turfgrass managers have been seeking products that control pests while promoting drought resistance. Civitas TM Turf Defense is a new petroleum-derived spray oil (PDSO) mixed with...

Mobile drip irrigation (MDI) systems integrate the technological advantages of center-pivot irrigation (CPI) systems and drip irrigation systems, boasting a high water-saving potential. To further enhance water use efficiency in alfalfa production in northern China, this preliminary study verified the accuracy of the HYDRUS-2D soil water movement n...

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Water shortage is considered the most critical issue in the regions of arid and semi-arid climate, which is affecting the growth cycle and yield of the winter wheat crop (Triticum durum Desf.). Consequently, irrigation is necessary to increase crop production and maximize water use efficiency (WUE). This study was carried out over three consecutive...

Excessive irrigation in protected vegetable production often results in soil nutrient loss and groundwater contamination. Cucumber (Cucumis sativus L.) is a widely cultivated and important vegetable in the world and a sensitive plant to irrigation water supply. In order to obtain higher water use efficiency (WUE) and to assess the leaching loss of...

This study aimed to evaluate the effect of two irrigation systems (deficit irrigation (DI)—70% of field capacity—and full irrigation (FI)—100% of field capacity) and a biostimulant formulation (silicon (Si) and calcium (Ca) at four different rates) on the chemical composition and fruit quality of greenhouse-grown tomatoes. Deficit irrigation and bi...

In this study, we focused on precise determination of actual crop evapotranspiration (ET c) of groundnut in an arid region of India using single load cell-based mini-lysimeters. This study, for the first time, integrated two water saving techniques, i.e., pressurized irrigation system through mini-sprinklers and deficit irrigation strategy. The gro...

This study assesses the impact of two regulated deficit irrigation (RDI) and one sustained deficit irrigation (SDI) strategies on the fruit quality characteristics of pomegranate (Punica granatum L.) compared to a fully irrigated control in a Mediterranean climate. Field trials were conducted over two growing seasons at the Cajamar Experimental Cen...

Crop production technology across the globe is facing a major constraint in the form of water availability. Increase in population would increase the pressure of existing water resources which in turn would reduce the share of agricultural water. In this scenario, it is utmost necessary to produce more crops per drop using improved irrigation te...

The growing demand for renewable energy sources and the need to optimize water use in agriculture, particularly in water-scarce regions, highlights the importance of growing species suitable for semi-arid areas, such as sorghum (Sorghum bicolor L. Moench). Deficit irrigation strategies allow water savings by optimizing water use efficiency. However...

This study presents a simulation–optimization framework that integrates deficit irrigation strategies with ecological considerations to mitigate the impact of water abstraction on potential fish populations in river ecosystems. The framework addresses two primary objectives: minimizing fish population loss, an ecological index reflecting environmen...

In many sustainable agricultural systems, combining soil ameliorants with deficit irrigation is a viable strategy. However, little is known about how this approach affects soil quality, crop water productivity (CWP), and sugar beet (Beta vulgaris L.) yield in sandy soils. This study investigates the effects of different soil ameliorants―potassium p...

This study evaluated the impact of deficit irrigation during preharvest on the physiological and productive responses of ‘Regina’/Gisela 6 sweet cherry. After harvest, deficit-irrigated trees were water recovered, and physiological variables were measured. Fruit condition was evaluated after 45 days of cold storage. The experiment was carried out d...

Crop simulation models serve as effective instruments for evaluating the management conditions of irrigation systems. This study aims to simulate maize production to identify optimal irrigation water management strategies under deficit irrigation and moisture conservation practices, utilizing the AquaCrop model. We conducted this research at Woleh...

This study aims to determine the effects of four different biostimulation treatments—composed of microorganisms, seaweed, and plant extracts—on the yield and quality traits of table grapes. Those treatments are compared with an untreated control treatment and tested under two different irrigation schedules: (i) Farmer Irrigation (FI), according to...

Kenaf ( Hibiscus cannabinus ) is a fiber crop that grows well in tropical climates and has numerous potential industrial and environmental benefits. However, like many crops, it may be limited by sensitivity to water stress, particularly at the seedling stage. Soil surfactants are frequently used as soil amendments to increase the volumetric water...

The instability between water demand and availability is making it challenging to cultivate viable, sustainable crops. To address this, improved irrigation scheduling regimes need to be adopted, focusing on full crop water requirements to determine optimal water allocation. This study aimed to identify suitable intercropping combinations of legumin...

A field experiment was conducted in 2018 at Marciano della Chiana (Arezzo, AR, Central Italy) with the main aim of investigating the effect of soil amendment with organic fraction municipal solid waste (OFMSW) compost and legume green manuring (Vicia villosa Roth, cv. villana) on a tobacco crop (dark fire-cured Kentucky type, cv. Foiano) grown unde...

Water scarcity, especially in countries like Egypt, is one of the biggest challenges facing agricultural development. Pomegranate (Punica granatum) is drought-resistant but only if the irrigation can be optimized. This can be a crucial approach toward the country’s agricultural development. The impact of deficit irrigation on pomegranate growth, yi...

Strawberry (Fragaria × ananassa Duch.) has a unique flavor and nutritional value. To investigate the effects of deficit irrigation on the growth, yield, quality, and water use efficiency of strawberries, “Zhangji” and “Hongyan” varieties were assessed in a greenhouse. Four irrigation levels were set as 95% (CK), 75% (LS), 55% (MS), and 35% (±5%) (S...

Vegetable production worldwide is heavily influenced by climate change. We aimed to determine the responses of some local tomato landraces from Mediterranean countries pre-selected as drought tolerant according to previous screening tests at an early stage. Three irrigation approaches were applied: Full irrigation (Ir-Full), Deficit 1 (Ir-Def1), an...

In the context of water restriction, the adoption of innovative technology and water saving strategies is crucial to sustainable agriculture production. Thus, we sought to emphasize the contribution of precision irrigation based on Internet of Things (IoT) technology and smart sensors for optimizing irrigation water use. The effects of different dr...

Agriculture accounts for over 70% of global freshwater consumption, with increasing competition for water resources due to climate change and rising urban and industrial demands. This study analyzes the effect of deficit irrigation (DI) on the agronomic and physiological performance of pomegranate (Punica granatum L.) in a Mediterranean climate. De...

Scarcity of water resources is deepening on a global scale, with over 70{\%} of the total consumption falling on agriculture. Irrigation water savings can be reduced through the implementation of efficient methods (micro-irrigation) and technologies (regulated water deficit irrigation, RDI). These approaches are the object of research in a nine-yea...

To sustain agricultural productivity and safeguard global food security, and confront the escalating challenges posed by climate change and water scarcity, it is essential to enhance the growth and productivity of rice under water stress. This study investigated the effects of lanthanum chloride on the chlorophyll fluorescence characteristics and g...

The potential reactions of grafted and ungrafted eggplant plants under different irrigation water levels (100%, 80%, 60% and 40%) with the use of the “conventional and deficit irrigation” and “partial root drying (PRD)” technique were investigated in this study. The research was conducted in a glass greenhouse during two cultivation seasons in 2019...

Biostimulation and precision irrigation are strategies that increase the sustainability of agriculture, and both have been widely studied in table grapes, but their interaction is a new approach for viticulture. The objective of this field trial was to assess the physiological effects of water deficit on table grapes pretreated for two consecutive...

Drip irrigation, combined with mulch and deficit water application, can significantly improve the water efficiency of irrigated agriculture. Study at Ambo Agricultural Research Center during the 2021/22 and 2022/23 irrigation seasons aimed to determine the most suitable deficit levels and mulch for drip-irrigated onion. The experiment used a random...

Water scarcity is a significant global risk affecting health, food security, economic development, social stability, environmental sustainability, and climate change adaptation. Implementing deficit irrigation strategies can improve water efficiency and agricultural resilience. Spain, particularly the Region of Murcia, has pioneered apricot cultiva...

Improving irrigation water management and increasing water productivity are critical to address future water scarcity in arid and semi-arid areas. A promising strategy is to maximize water productivity by exposing crops to a certain level of water stress. The experiment was conducted on-site at the Adami Tulu Agricultural Research Center to study t...

Irrigation is one of the most important cultural practices in sustainable cabbage cultivation. While most studies on irrigation in cabbage have focused on conventional deficit irrigation (DI) practices, some plants’ water requirements under the partial root drying (PRD) technique are not yet very clear. In this study, the possible responses of cabb...

The Ethiopian vegetable sub-sector, particularly onion, is crucial for the economy due to its high productivity and ease of cultivation. However, water scarcity in arid and semi-arid regions hinders its expansion. This study conducted at Wondo Genet Agricultural Research Center aimed to investigate the impact of deficit irrigation levels at various...

Moderate deficit irrigation can improve lignin metabolism, thereby increasing wheat yield and lodging resistance. The moisture-sensitive variety Xinchun 22 (XC22) and drought-resistant variety Xinchun 6 (XC6) were used as experimental materials. We set mild drought (T1, J1 and 60–65% FC, where FC is the field capacity) and moderate drought (T2, J2...

Single crop coefficient-based crop water estimation challenges watermelon irrigation agriculture in Arba Minch, Ethiopia. This study aimed to estimate the adjusted dual crop coefficient of watermelon under deficit irrigation with straw mulching, alongside validating the AquaCrop model for watermelon cultivation improvement. This experimental resear...

Water scarcity is among the major limitations for crop production. Improving water use efficiency of irrigated crops through water management options is crucial in water scarce areas. Field experiment was carried out at Wondo Genet Agricultural Research Center Koka Research site, to investigate the effect of water stress at different growth stage o...

Super high-density (SHD) planting systems are very efficient in terms of production and water use. In these orchards, water-saving irrigation strategies are used precisely to keep the best sustainability compared to traditional orchards. With agro-climatic and eco-physiological parameter monitoring, the SHD planting system has become even more effi...

Irrigated agricultures becoming main concern and strongly recognized to ensure the food security. Deficit irrigation is main strategy to improve water and crop productivity. This study was conducted for two consecutive years (2010 E.C-2012 E.C) to determine the sensitive growth stage effect on tomato yield for water stress and improve water product...

This work was conducted over three-year monitoring seasons of three almond cultivars (Guara, Marta, and Lauranne) subjected to deficit irrigation in combination with cover crops in a Mediterranean semiarid area (SW, Spain). Four water–soil treatments were evaluated based on the conjunction of two irrigation strategies: fully irrigated (FI), coverin...

There are different methods to wisely utilization of the available irrigation water. From these estimation of crop water requirements and its scheduling is very important. Hence, in Mychew SSI scheme yet not estimated the appropriate irrigation depth and its scheduling for tomatoes. Therefore, this research deals with three different irrigation dep...

Melon (Cucumis melo L.) plants have high economic value and require optimal water management to support growth and production. This study aims to analyze the effects of deficit irrigation on water requirements, growth, and yield of melon plants. The research was conducted using a Completely Randomized Design (CRD) with four levels of deficit irriga...

Due to their intensive cultivation, horticultural crops are particularly susceptible and vulnerable to the detrimental effects of drought stress, necessitating significant water inputs for optimal growth and yield. Accordingly, water-saving irrigation strategies, i.e., Partial Root zone Drying (PRD) and Regulated Deficit Irrigation (RDI) emerge as...

A four-year research experiment was conducted on sandy loam soil at the University of California Kearney Agricultural Research and Extension Center in Parlier, California, to investigate the effect of midsummer deficit irrigation on alfalfa yield, irrigation water productivity (IWP), and crop water productivity (CWP). The experiment was a randomize...

Plant breeding initiative in semi-arid and arid area are primarily focused on developing genotypes at early growth stage under normal conditions and keeping them steady during drought stress conditions. Therefore, four melon genotypes responses to drought stress were evaluated in this study during early growth stage. Two treatments for irrigation r...

Green peppers (Capsicum annuum L.) are a fruit vegetable with great culinary versatility and present important nutritional properties for human health. Water deficit negatively affects the nutritional quality of green peppers' fruits. This study aimed to investigate the influence of zinc oxide nanoparticles (ZnONPs), associated with plant growth-pr...

The objective was to evaluate the physiological and biochemical characteristics during flowering, and the total and marketable fruit yield of yellow melon subjected to different irrigation depths and application of the biostimulant Arbolina®. The experimental design was randomized blocks, in a 2×2×5 factorial arrangement of split-split plots, with...

Crop production is largely limited by water availability in arid and semi-arid regions of Ethiopia. Changing climate conditions and declining water resources demand appropriate approaches to improve crop yield and water use efficiency through a reduced and more reliable water supply. A field experiment was conducted to evaluate the effect of limite...

Water scarcity is an extreme global concern due to changing climate and rapid population growth. Worldwide, freshwater sources are depleting and there is a need to implement water-conserving approaches in water-limited or arid areas for sustainable crop production. Therefore, this study aimed to investigate the impact of deficit irrigation on cucum...

The optimization of plant density plays a crucial role in cotton production, and deficit irrigation, as a water-saving measure, has been widely adopted in arid regions. However, regulatory mechanisms governing nitrogen absorption, transportation, and nitrogen use efficiency (NUE) in cotton under deficit irrigation and high plant density remain uncl...

Agriculture accounts for 70% of global freshwater usage, majority of which is used for irrigation. Irrigated agriculture in the Texas High Plains (THP) region of the United States highly depends on groundwater availability in the Ogallala Aquifer. Rapidly declining groundwater levels, recurring droughts and increasing climate variability are primar...

The development of a crop production strategy through the use of a crop model represents a crucial method for the assurance of a stable agricultural yield and the subsequent enhancement thereof. There are currently no studies evaluating the suitability of the AquaCrop model for the drip irrigation of Gossypium barbadense in Southern Xinjiang, which...

Sustainable agriculture, as a strategic goal, requires more efficient use of all natural resources that may lead to balanced agriculture development. In this context, considering the water resource scarcity both in quantity and quality, it is necessary to improve water use efficiency by adopting saving strategies such as deficit irrigation and adju...

Deficit irrigation trial has been conducted to see the response of durum wheat to the extent of deficit irrigation at Debre Zeit research center for three successive seasons from 2016 to 2018. Establishment irrigations were given for all plots after swing and irrigation water application events were monitored using long term meteorological data and...

Green peppers (Capsicum annuum L.) is a fruit vegetable with great culinary versatility, and present important nutritional properties for human health. Water deficit negatively affects nutritional quality of green peppers fruits. This study aimed to investigate the influence of zinc oxide nanoparticles (ZnONPs), associated with plant growth-promoti...

Water scarcity poses a significant threat to the sustainable production of crops in Northern China. Despite this, the effect of water management practices, such as deficit irrigation, on the yield and WUE of potatoes has been rarely explored. Based on the meta-analysis of field experiment data, this study evaluated the influence of deficit irrigati...

As one of the most important food crops, the potato is widely planted in the oasis agricultural region of Northwest China. To ascertain the impact of regulated deficit irrigation (RDI) on various facets including dry matter accumulation, tuber yield, quality and water use efficiency (WUE) of potato plants, a two-growth season field experiment under...

Poor agricultural soil management practices and water use optimisation in irrigation are major challenges facing crop production in Senegal. To address these problems, a factorial experiment was conducted in 2021 and 2022 to investigate the effects of biochar on tomato growth and yield in sandy loam soil under different irrigation levels. Treatment...

In arid and semiarid regions, crop production has high irrigation water demands due to low precipitation. Efficient irrigation water management strategies can be developed using crop growth models to assess the effect of different irrigation management practices on crop productivity. The leaf area index (LAI) is an important growth parameter used i...

One of the alternative methods for managing irrigation water is deficit irrigation, particularly alternate furrow irrigation (AFI). This deficit in irrigation is affected by uncontrolled rainfall. In line with this, rainfall uncertainty causes a variation between the measured actual crop evapotranspiration and the theoretical crop evapotranspi-rati...

Climate change significantly impacts agriculture and forage production, requiring the implementation of strategies toward increased water and energy use efficiency. So, this study investigated the yield of forage cactus (Opuntia stricta (Haw.) Haw) under different irrigation depths using brackish groundwater (1.7 dS m⁻¹), whose management was based...

This study investigated the combination of UV persulfate (UV/PS) treatment of recycled water and deficit irrigation to minimize pharmaceutical and personal care products (PPCPs) accumulation and improve crop quality. Lettuce, carrot, and tomato, commonly consumed raw, were cultivated in a greenhouse using PPCP spiked recycled water, UV/PS treated r...

Under the conditions of water scarcity in Egypt, there are many farms that follow the rotation irrigation system which add a large and more than necessary amount of water, as the entire weekly amount of water om only three days. This results in the loss of large amounts of irrigation water below the root zone, carrying with it and washing away the...

The aim of the research study was to increase productivity, water productivity and crop quality under conditions of irrigation deficit and water scarcity. To achieve this goal, an experimental design was carried out for the seasons 2022 and 2023 to study the effect of irrigation deficit strategies and the most appropriate timing for fertilization o...

The purpose of this study is to determine the effect of deficit irrigation application on the growth of bell pepper plants and to assess the efficiency of irrigation water application for bell pepper plants. The design used in this research is a Completely Randomized Design with 4 levels of deficit irrigation treatments and six replications. The pr...

The combined application of biochar and fertilizer has become increasingly popular for improving soil quality and crop productivity. However, the reported research results regarding the effects of biochar on soil properties and crop productivity have contradictory findings, indicating the requirement for further scientific research. Therefore, this...

Water is one of the main components of sustainable crop production. For this reason, it is an important factor to evaluate the water used in agricultural production processes in terms of efficiency. It is very important to determine the reactions of plants grown or intended to be grown, especially in arid and semi-arid areas, to restricted irrigati...

The olive tree (Olea europaea L.) is culturally and economically vital in Morocco. However, its sustainability is threatened by aridity and water scarcity. Studying its response to different irrigation strategies is crucial for sustainable cultivation and improved water use efficiency in the face of future drought events. This work aimed to study t...

Water-saving agricultural counter measures were required to deal with the current water scarcity. Therefore, the purpose of this research was to investigate how deficit watering affects onion yield and water productivity when drip irrigation and mulching were used. Factorial arrangement in a randomized complete block design with three replications...

Aims:To Evaluate the Impact of Different Irrigation Levels on Cotton Yield and Phenological Traits and To Determine the Optimal Fertigation Level for Cotton Cultivation.Study Design:Factorial Randomized Block Design.Place and Duration of Study:Department of Agronomy, CCSHAU, Hisar, Haryana, India between June 2019 and July 2020.Methodology:The expe...

This study investigates the potential of biochar to mitigate drought stress in crops. Biochar amendments are increasingly recognized for their ability to enhance soil properties that promote water retention and plant resilience during dry periods. In a study conducted in Egypt, impacts of the application of sugarcane biochar on cucumber production,...

Addressing agricultural water scarcity poses a current challenge of growing concern, exacerbated by climate change. This is particularly relevant for stone fruit trees, such as apricot, cultivated in semi-arid zones, where regulated deficit irrigation (RDI) strategies are gaining attention to tackle the challenge. The RDI method involves optimizing...

The research was conducted at the National Institute of Agricultural Sciences located in Mayabeque province, Cuba, with the aim of determining the response of bean crops to controlled deficit irrigation applied at different stages of their biological cycle. The study was carried out during two planting seasons (January and October 2021) under semi-...