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Journal articles on the topic 'Deficit irrigation schedule'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Kireva, Rumiana, and Roumen Gadjev. "IRRIGATION SCHEDULE OF LONG-FRUIT CUCUMBERS AND HYDROAMELIORATIVE REQUIREMENTS FOR DRIP IRRIGATION IN PLASTIC GREENHOUSE." International Conference on Technics, Technologies and Education, ICTTE 2019 (2019): 307–13. http://dx.doi.org/10.15547/ictte.2019.05.052.

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The deficit of the irrigation water requires irrigation technologies with more efficient water use. For cucumbers, the most suitable is the drip irrigation technology. For establishing of the appropriate irrigation schedule of cucumbers under the soil and climate conditions in the village of Chelopechene, near Sofia city, the researchеs was conducted with drip irrigation technology, adopting varying irrigation schedules and hydraulic regimes - from fully meeting the daily crops water requirements cucumbers to reduced depths with 20% and 40%. It have been established irrigation schedule with ad

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Fu, Qiang, Liyan Yang, Heng Li, et al. "Study on the Optimization of Dry Land Irrigation Schedule in the Downstream Songhua River Basin Based on the SWAT Model." Water 11, no. 6 (2019): 1147. http://dx.doi.org/10.3390/w11061147.

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The optimization of irrigation schedules is of great significance for saving water resources and ensuring food security. For the downstream of the Songhua River Basin, the key growth stages of crops were determined by the coupling degree between the effective precipitation and crop water requirement and the sensitivity indexes of the crop water production function. A Soil and Water Assessment Tool (SWAT) model was used to simulate 16 irrigation schedules in different scenarios. Taking four factors into consideration, Analytic Hierarchy Process (AHP)-Gray Interconnect Degree Analysis (GIDA) was

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3

Linker, Raphael, and Isaya Kisekka. "Model-Based Deficit Irrigation of Maize in Kansas." Transactions of the ASABE 60, no. 6 (2017): 2011–22. http://dx.doi.org/10.13031/trans.12341.

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Abstract. Maize is the dominant irrigated crop in Kansas. In recent years, as a result of declining groundwater levels in the Ogallala aquifer and diminished well capacities, farmers are turning to deficit irrigation strategies. This study demonstrates the potential of model-based optimization for determining adequate soil water depletion levels. CERES-Maize was used as surrogate crop, while the AquaCrop model was used in an optimization procedure that determined the optimal water depletion levels. A multi-objective optimization framework was used to determine several combinations of optimal w

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Sarkar, PK, MSU Talukder, SK Biswas, and A. Khatun. "Growth and yield of wheat (Triticum aestivum) under deficit irrigation." Bangladesh Journal of Agricultural Research 38, no. 4 (2014): 719–32. http://dx.doi.org/10.3329/bjar.v38i4.19663.

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Timing and the extent of water deficit were studied in a field experiment on wheat (cv. Shatabdi) for three consecutive years from 2003-04 through 2005-06 at Jamalpur area. The effects of number and timing of irrigation application on yields were investigated under variable soil moisture condition in the root zone of different treatments. Eight deficit irrigations, including one no stress and one rainfed treatments were selected to subject the crop to various degrees of soil water deficit at different stages of crop growth. Measured amount of irrigation water was applied as per schedule prescr

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Patnaik, Girija Prasad, Anupama Baliarsingh, Sanat Kumar Dwibedi, et al. "Integrated Nutrient Management and Salicylic Acid Improves Grain Yield of Quinoa (Chenopodium quinoa Willd.) Subjected to Moisture Deficit Stress." International Journal of Environment and Climate Change 13, no. 11 (2023): 3050–56. http://dx.doi.org/10.9734/ijecc/2023/v13i113474.

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Aims: A field study was conducted to quantify the effect of moisture deficit stress at different critical stages of quinoa and different mitigation approaches were adopted in order to alleviate moisture deficit stress. Study Design: The experiment was designed in split plot design comprising of six main plots (water management) and four sub plots (stress mitigation approaches). The treatments in main plots viz., no irrigation at branching (M1), at ear formation (M2), flowering (M3), grain filling (M4) stages, irrigating at all four stages (M5) and irrigating as and when required (M6), an

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Delalieux, S., B. Delauré, L. Tits, M. Boonen, A. Sima, and P.-J. Baeck. "High resolution strawberry field monitoring using the compact hyperspectral imaging solution COSI." Advances in Animal Biosciences 8, no. 2 (2017): 156–61. http://dx.doi.org/10.1017/s2040470017001297.

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In strawberry production, a balanced and accurate irrigation schedule is essential, because of the high sensitivity of strawberry plants to water deficits and waterlogging. The optimal irrigation management strategy can, however, only be obtained by an accurate crop monitoring system. To replace the current visual inspection methods, which are subjective, time consuming and labour-intensive, the performance of the COmpact hyperSpectral Imaging system (COSI) mounted on an RPAS (Remotely Piloted Aircraft System) was evaluated. The study, focusing on different irrigation treatments in strawberry

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Slama, Fairouz, Nessrine Zemni, Fethi Bouksila, Roberto De Mascellis, and Rachida Bouhlila. "Modelling the Impact on Root Water Uptake and Solute Return Flow of Different Drip Irrigation Regimes with Brackish Water." Water 11, no. 3 (2019): 425. http://dx.doi.org/10.3390/w11030425.

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Water scarcity and quality degradation represent real threats to economic, social, and environmental development of arid and semi-arid regions. Drip irrigation associated to Deficit Irrigation (DI) has been investigated as a water saving technique. Yet its environmental impacts on soil and groundwater need to be gone into in depth especially when using brackish irrigation water. Soil water content and salinity were monitored in a fully drip irrigated potato plot with brackish water (4.45 dSm−1) in semi-arid Tunisia. The HYDRUS-1D model was used to investigate the effects of different irrigatio

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Zhang, Haohui, Feng Ma, Wentao Wang, Feng Ding, Xin Hui, and Haijun Yan. "Preliminary Multi-Objective Optimization of Mobile Drip Irrigation System Design and Deficit Irrigation Schedule: A Full Growth Cycle Simulation for Alfalfa Using HYDRUS-2D." Water 17, no. 7 (2025): 966. https://doi.org/10.3390/w17070966.

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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 numerical model through field experiments. Using the numerical model, four drip-line installation distances (60, 75, 90, and 105 cm), three deficit irrigation thresholds (45–50% FC, 55–60% FC, and 65–70% FC), and four irrigation depths (70% W, 85% W,

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Kothari, Kritika, Srinivasulu Ale, James P. Bordovsky, and Clyde L. Munster. "Assessing the Climate Change Impacts on Grain Sorghum Yield and Irrigation Water Use under Full and Deficit Irrigation Strategies." Transactions of the ASABE 63, no. 1 (2020): 81–94. http://dx.doi.org/10.13031/trans.13465.

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HighlightsIrrigated grain sorghum yield and irrigation water use decreased under climate change.Increase in growing season temperature beyond 26°C resulted in a sharp decline in grain sorghum yield.Irrigating during early reproductive stages resulted in the most efficient use of limited water.Irrigating to replenish soil water to 80% of field capacity was found suitable for both current and future climates. Groundwater overdraft from the Ogallala Aquifer for irrigation use and anticipated climate change impacts pose major threats to the sustainability of agriculture in the Texas High Plains (T

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10

Ebel, Robert C., Edward L. Proebsting, and Robert G. Evans. "Deficit Irrigation to Control Vegetative Growth in Apple and Monitoring Fruit Growth to Schedule Irrigation." HortScience 30, no. 6 (1995): 1229–32. http://dx.doi.org/10.21273/hortsci.30.6.1229.

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A standard fruit growth curve, used commercially as an aid to hand thinning, was compared to periodic volume measurements of apple fruit (Malus domestica Borkh. `Delicious') subjected to early season regulated deficit irrigation (RDI) to determine when to end RDI, which is used to control vegetative growth and save water. RDI suppressed stem water potential, stomatal conductance, and fruit growth rate compared to the trickle- and furrow-irrigated controls, which wetted about one-half and the entire soil volume, respectively. Full irrigation was restored to RDI trees by trickle and microsprinkl

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11

Patnaik, Girija Prasad, Anupama Baliarsingh, Sanat Kumar Dwibedi, et al. "Integrated Nutrient Management and Salicylic Acid Boost Quinoa (Chenopodium quinoa Willd.) Yield under Deficit Moisture Stress at Different Critical Stages." International Journal of Environment and Climate Change 13, no. 11 (2023): 3043–49. http://dx.doi.org/10.9734/ijecc/2023/v13i113473.

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Aims: A field study was conducted to quantify the effect of moisture deficit stress at different critical stages of quinoa and different mitigation approaches were adopted in order to alleviate moisture deficit stress. Study Design: The experiment was designed in a split-plot design comprising six main plots (water management) and four subplots (stress mitigation approaches). The treatments in main plots viz., cut-off irrigation at branching (M1), at ear formation (M2), flowering (M3), grain filling (M4) stages, irrigating at all four stages (M5) and irrigating as and when required (M6),

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12

Muroyiwa, G., T. Mhizha, E. Mashonjowa, and M. Muchuweti. "Using AquaCrop model to derive deficit irrigation schedules for improved irrigation water management for tomato production in Zimbabwe." African Crop Science Journal 31, no. 3 (2023): 365–78. http://dx.doi.org/10.4314/acsj.v31i3.7.

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Increasing scarcity and unreliability of rainfall, and the absence of irrigation schedules are challenges to decision-making, particularly for viable tomato (Lycopersicon esculentum Mill) production in Zimbabwe. The objective of this study was to determine water requirements of tomato as a basis for developing generic calendar guidelines for a more efficient irrigation management in Harare, Zimbabwe. We explored the options of improving the traditional, dry and supplementary wet season irrigation practices. By considering the archived climate data of thirty years (1991-2021) for Harare; and mo

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13

Chen, Qi, Gui, et al. "A Model-Based Real-Time Decision Support System for Irrigation Scheduling to Improve Water Productivity." Agronomy 9, no. 11 (2019): 686. http://dx.doi.org/10.3390/agronomy9110686.

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A precisely timed irrigation schedule to match crop water demand is vital to improving water use efficiency in arid farmland. In this study, a real-time irrigation-scheduling infrastructure, Decision Support System for Irrigation Scheduling (DSSIS), based on water stresses predicted by an agro-hydrological model, was constructed and evaluated. The DSSIS employed the Root Zone Water Quality Model (RZWQM2) to predict crop water stresses and soil water content, which were used to trigger irrigation and calculate irrigation amount, respectively, along with forecasted rainfall. The new DSSIS was ev

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Wabela, Kedrala, Ali Hammani, Taky Abdelilah, Sirak Tekleab, and Moha El-Ayachi. "Optimization of Irrigation Scheduling for Improved Irrigation Water Management in Bilate Watershed, Rift Valley, Ethiopia." Water 14, no. 23 (2022): 3960. http://dx.doi.org/10.3390/w14233960.

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The availability of water for agricultural production is under threat from climate change and rising demands from various sectors. In this paper, a simulation-optimization model for optimizing the irrigation schedule in the Bilate watershed was developed, to save irrigation water and maximize the yield of deficit irrigation. The model integrated the Soil and Water Assessment Tool (SWAT) and an irrigation-scheduling optimization model. The SWAT model was used to simulate crop yield and evapotranspiration. The Jensen crop-water-production function was applied to solve potato and wheat irrigation

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Kwakye, Samuel, and Davie M. Kadyampakeni. "Impact of Deficit Irrigation on Growth and Water Relations of HLB-Affected Citrus Trees under Greenhouse Conditions." Water 15, no. 11 (2023): 2085. http://dx.doi.org/10.3390/w15112085.

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Huanglongbing (HLB) is a citrus disease that affects the growth of the fibrous roots of citrus trees. This means that HLB-affected trees may have reduced root volume and may impact water uptake. A greenhouse study was conducted from October 2019 to July 2021 at the Citrus Research and Education Center (CREC) in Lake Alfred, FL, to evaluate the growth and development of HLB-affected citrus trees under a deficit irrigation system. The objective was to assess the impact of deficit irrigation on tree growth, water availability, stem water potential (SWP), sap flow, and root growth of HLB-affected

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16

Eltarabily, Mohamed Galal, John M. Burke, and Khaled M. Bali. "Impact of Deficit Irrigation on Shallow Saline Groundwater Contribution and Sunflower Productivity in the Imperial Valley, California." Water 12, no. 2 (2020): 571. http://dx.doi.org/10.3390/w12020571.

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Yield and production functions of sunflower (Helianthus annuus) were evaluated under full and deficit irrigation practices with the presence of shallow saline groundwater in a semi-arid region in the Imperial Valley of southern California, USA. A growing degree day (GDD) model was utilized to estimate the various growth stages and schedule irrigation events throughout the growing season. The crop was germinated and established using overhead irrigation prior to the use of a subsurface drip irrigation (SDI) system for the remainder of the growing season. Four irrigation treatments were implemen

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17

Langworthy, Adam D., Richard P. Rawnsley, Mark J. Freeman, et al. "Effect of stubble height and irrigation management on the growth, botanical composition and persistence of perennial ryegrass, tall fescue and chicory swards in cool-temperate Tasmania." Crop and Pasture Science 70, no. 2 (2019): 169. http://dx.doi.org/10.1071/cp18311.

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The profitability of dairying in south-eastern Australia can be improved by increasing pasture production during summer–autumn, when growth rates for the existing perennial ryegrass (Lolium perenne L.) feedbase are low. A study undertaken in cool-temperate north-west Tasmania examined the effect of stubble height and irrigation management on swards of perennial ryegrass, continental (summer-active) tall fescue (Festuca arundinacea Schreb.) and chicory (Cichorium intybus L.). Irrigation treatments included full irrigation (~20mm applied at every 20mm precipitation deficit), deficit irrigation (

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18

Brown, C. A., D. A. Devitt, and R. L. Morris. "Water Use and Physiological Response of Tall Fescue Turf to Water Deficit Irrigation in an Arid Environment." HortScience 39, no. 2 (2004): 388–93. http://dx.doi.org/10.21273/hortsci.39.2.388.

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Research was conducted to assess the response of tall fescue (Festuca arundinacea Schreb.) to water deficit conditions. Different leaching fractions (LF = drainage volume/irrigation volume) and irrigation frequencies (IF) were imposed over a 119-day summer period in Las Vegas, Nevada, followed by a 71-day recovery period. Plots of tall fescue contained 120 cm deep × 51 cm diameter draining lysimeters. Irrigations were based on an evapotranspiration (ET) feedback system to establish LFs of +0.15, 0.00, -0.15, -0.25, and -0.40. Plots were irrigated on a daily or twice per week schedule. N was ap

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19

Robertson, D., M. Wood, and Q. J. Wang. "Estimating hydraulic parameters for a surface irrigation model from field conditions." Australian Journal of Experimental Agriculture 44, no. 2 (2004): 173. http://dx.doi.org/10.1071/ea02191.

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Border-check irrigation is the most common method of irrigating pastures in Northern Victoria. To make the best use of a border-check irrigation system, consideration needs to be given to the irrigation schedule and irrigation event management. Surface irrigation models can provide an inexpensive and rapid method for identifying optimal irrigation event performance. The most common difficulty encountered when using surface irrigation models is determining appropriate hydraulic parameters. Two experiments were conducted to investigate the relationship between hydraulic parameters of the Analyti

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Cui, Yi, Shangming Jiang, Juliang Jin, Ping Feng, and Shaowei Ning. "Decision-Making of Irrigation Scheme for Soybeans in the Huaibei Plain Based on Grey Entropy Weight and Grey Relation–Projection Pursuit." Entropy 21, no. 9 (2019): 877. http://dx.doi.org/10.3390/e21090877.

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To provide a scientific reference for formulating an effective soybean irrigation schedule in the Huaibei Plain, potted water deficit experiments with nine alternative irrigation schemes during the 2015 and 2016 seasons were conducted. An irrigation scheme decision-making index system was established from the aspects of crop water consumption, crop growth process and crop water use efficiency. Moreover, a grey entropy weight method and a grey relation–projection pursuit model were proposed to calculate the weight of each decision-making index. Then, nine alternative schemes were sorted accordi

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Zaman, Rokon. "WATER STRESS EFFECT ON WHEAT AT DIFFERENT MECHANICAL SEEDING SYSTEMS." Cercetari Agronomice in Moldova 52, no. 3 (2019): 207–19. http://dx.doi.org/10.46909/cerce-2019-0021.

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Judicial water use, as well as improving water use efficiency in agriculture is new challenge. Conservation tillage, as well as mechanical seeding system, offers various benefits over intensive tillage system. Considering this, the study was conducted to find out the water requirements and appropriate deficit irrigation schedule of wheat on different seeding system. This study consisted of following irrigation treatments, like I1 = Irrigation at CRI stage, I2 = Irrigation at CRI and vegetative stages, I3 = Irrigation at CRI and grain filling stages and I4 = Irrigation at CRI, vegetative and gr

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Champness, Matthew, Carlos Ballester, and John Hornbuckle. "Decision Support Tool to Predict Panicle Initiation in Aerobic Rice." Agronomy 13, no. 3 (2023): 789. http://dx.doi.org/10.3390/agronomy13030789.

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Aerobic rice cultivation offers the potential to reduce irrigated water use. A multitude of challenges, such as cold sterility, drought stress, and labor shortages, limit its adoption in temperate rice-growing regions. Increasing the duration and extent of soil moisture tension between irrigation events has been demonstrated to slow crop development. Delaying panicle initiation (PI) beyond the optimal window can expose rice to cold nighttime temperatures during the cold sensitive early pollen microspore, severely reducing yield. Tools to assist Australian temperate farmers and researchers in t

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S. D. Vibhute, A. Sarangi, and D.K. Singh. "Development of Crop Water Demand Based Water Delivery Schedule for a Canal Command." Journal of Agricultural Engineering (India) 53, no. 2 (2024): 12–23. http://dx.doi.org/10.52151/jae2016532.1599.

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Crop water demand-based canal water delivery schedule was developed using geospatial tools and CROPWAT model for the Jhajjar distributary of Western Yamuna Canal Command in Haryana, India. The geospatial database of different soil, water and crop parameters in the command area were developed and analyzed using the Geographic Information System (GIS) tool. Further, the geospatial data were used to work out the irrigation schedule of different crops using CROPWAT model. It was observed from the analysis that the gross irrigation water requirement of wheat was 363.4 mm and that of rice was 1386 m

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Lozano, David, Natividad Ruiz, Rafael Baeza, Juana I. Contreras, and Pedro Gavilán. "Effect of Pulse Drip Irrigation Duration on Water Distribution Uniformity." Water 12, no. 8 (2020): 2276. http://dx.doi.org/10.3390/w12082276.

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Developing an appropriate irrigation schedule is essential in order to save water while at the same time maintaining high crop yields. The standard procedures of the field evaluation of distribution uniformity do not take into account the effects of the filling and emptying phases of the irrigation system. We hypothesized that, in sloping sandy soils, when short drip irrigation pulses are applied it is important to take into account the total water applied from the beginning of irrigation until the emptying of the irrigation system. To compute distribution uniformity, we sought to characterize

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Rifai, Muji, and Agus Hari Wahyudi. "OPTIMASI DISTRIBUSI AIR IRIGASI MELALUI SISTEM GOLONGAN (STUDI KASUS DAERAH IRIGASI RONGKONG SELUAS 27.000 HA)." Jurnal Riset Rekayasa Sipil 8, no. 1 (2024): 27. http://dx.doi.org/10.20961/jrrs.v8i1.95315.

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<p class="Abstract"><em>The utilization of river water to support activities in the agricultural sector includes constructing water structures that function to channel or supply water to rice fields through weirs. The water required for rice fields is referred to as irrigation water demand. The amount of water needed in irrigated areas varies, necessitating a water distribution management system, one of which involves creating a crop planting schedule with a technical/rotational system, ensuring the water balance of an irrigation area is well managed. The aim of this research is to

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Ramsey, Craig L. "Magnetized Seeds and Structured Water: Effects on Resilience of Velvet Bean Seedlings (Mucuna pruriens) under Deficit Irrigation." Journal of Basic & Applied Sciences 19 (December 31, 2023): 249–70. http://dx.doi.org/10.29169/1927-5129.2023.19.19.

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A custom-built water generator supplied structured water (SW) for applying the deficit irrigation treatments to velvet bean plants (Mucuns pruriens). The objectives of the study were to 1) determine the effects of magnetized seed treatment on velvet bean plants, 2) determine the effects of magnetized and hydroxylated water treatments on velvet bean plants, and 4) determine the effects of deficit irrigation, using three soil moisture levels, on velvet bean plants. The optimal water-saving treatment was magnetized seeds plus 10 MT + HWT. This treatment had a 226% increase in transpiration and a

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Alasinrin, Yusuf S., Wahab Abdulkadir, Haliru A. Girei, et al. "Soil Physical Properties and Water Utilization of Okra Under Irrigation and Mulching in Northern Guinea Savanna, Nigeria." Bulgarian Journal of Soil Science 10, no. 1 (2025): 49–64. https://doi.org/10.5281/zenodo.15523958.

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During the dry season, a field experiment was carried out at the IAR IrrigationResearch Farm in Kadawa, Nigeria. The study investigated the impacts of controlled deficitirrigation and different mulch levels on soil hydro-physical traits and water efficacy in okraproduction (Abelmoschus esculentum L.). A total of Sixteen (16) treatment combinationswere investigated: four irrigation levels (100, 85, 70, and 55% using weekly referenceevapotranspiration (WRETo)) and four mulch levels (no mulch, 2, 4, and 6 kg/plot of ricestraw). Soil samples at depths of 0-15 and 15-30 cm were analysed for bulk de

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VELIEV, I. G., V. V. ILJINICH, and A. V. PERMINOV. "SIMULATION MODELING OF RUNOFF REGULATION BY AN IRRIGATION WATER RESERVOIR UNDER THE CONDITIONS OF LOW-WATER." Prirodoobustrojstvo, no. 4 (2020): 106–11. http://dx.doi.org/10.26897/1997-6011-2020-4-106-111.

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The article is dealt with the analysis of the Krasnodar water reservoir operation carried out under various options for regulating river flow. The considered options for water reservoir management were implemented in accordance with the current operation schedule and new regulations developed on the basis of simulation modeling using the IMIT-BALANS model which uses optimization elements. Previously this model was adapted by means of a more detailed discreteness of intra-annual intervals. Comparison of the results of the reservoir operation in relation to the deficient planned water yield for

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R. E., Abdelraouf, H. G. Ghanem, Najat A. Bukhari, and Mohamed El-Zaidy. "Field and Modeling Study on Manual and Automatic Irrigation Scheduling under Deficit Irrigation of Greenhouse Cucumber." Sustainability 12, no. 23 (2020): 9819. http://dx.doi.org/10.3390/su12239819.

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The primary goal of all those working in the field of sustainable water management, particularly in the arid and semi-arid zones, is to increase irrigation efficiency, reduce irrigation water losses, and improve water productivity for all crops. This study assessed the automatic irrigation scheduling and irrigation management on the growth, yield, and water productivity of cucumber under greenhouse conditions. A field experiment was conducted using cucumber grown in aplastic greenhouse during the winter of 2017/18 and 2018/19 at the research farm station of the National Research Centre (NRC),

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Atilgan, Atilgan, Roman Rolbiecki, Burak Saltuk, et al. "Deficit Irrigation Stabilizes Fruit Yield and Alters Leaf Macro and Micronutrient Concentration in Tomato Cultivation in Greenhouses: A Case Study in Turkey." Agronomy 12, no. 12 (2022): 2950. http://dx.doi.org/10.3390/agronomy12122950.

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Water is crucial for agriculture and needs to be used effectively due to climate change and drought in the Mediterranean region. For this reason, to adapt to water deficit scenarios, deficit irrigation applications are increasing in importance. The aim of this research was to determine the effect of varying levels of irrigation on growth parameters and concentration of nutrients in tomato plants grown under greenhouse conditions. The irrigation schedule used in this study was designed to include 100% (control), 90%, 80% and 70% of evaporation from the class-A pan. Water deficit was found to ca

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Rawnsley, R. P., B. R. Cullen, L. R. Turner, D. J. Donaghy, M. Freeman, and K. M. Christie. "Potential of deficit irrigation to increase marginal irrigation response of perennial ryegrass (Lolium perenne L.) on Tasmanian dairy farms." Crop and Pasture Science 60, no. 12 (2009): 1156. http://dx.doi.org/10.1071/cp08446.

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In the cool temperate dairy regions of Tasmania, there is heavy reliance on irrigation to maximise pasture performance by ensuring that plants do not suffer water stress. Consequently, irrigation water has often been applied at a greater amount than plant water requirements, resulting in low efficiencies. An irrigation experiment was undertaken in north-western Tasmania between October 2007 and April 2008, examining the effect of deficit irrigation treatments on pasture growth and water-use efficiency. A rainfall deficit (potential evapotranspiration minus rainfall) of 20 mm was implemented to

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Boyaci, Sedat, Joanna Kocięcka, Atilgan Atilgan, et al. "Evaluation of Crop Water Stress Index (CWSI) for High Tunnel Greenhouse Tomatoes under Different Irrigation Levels." Atmosphere 15, no. 2 (2024): 205. http://dx.doi.org/10.3390/atmos15020205.

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An experiment was conducted to determine the effect of water stress on yield and various physiological parameters, including the crop water stress index for tomatoes in the Central Anatolian region of Turkey. For this purpose, the irrigation schedule used in this study includes 120%, 100%, 80%, and 60% (I120, I100, I80, I60) of evaporation from the gravimetrically. Water deficit was found to cause a stress effect in tomato plants, which was reflected in changes in plants’ morphological and pomological function (such as stem diameter, fruit weight, pH, titratable acidity, and total soluble soli

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S. H. MALVE, V. PRAVEEN RAO, and ANIL DHAKE. "Estimation of seasonal evapotranspiration and crop coefficient of wheat (Triticum aestivum L.) under drip irrigation and N-fertigation scheduling at Jalgaon, Maharashtra." Journal of Agrometeorology 19, no. 4 (2017): 350–54. http://dx.doi.org/10.54386/jam.v19i4.605.

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An attempt was made to determine the seasonal evapotranspiration and crop coefficient of wheat during various growth stages under drip irrigation and N-fertigation scheduling in Jalgaon, Maharashtra during 2012-13 and 2013-14. The results revealed that grain and straw yield of wheat increased significantly at each higher levels of drip irrigation up to 1.0 Epan and fertigation of 120 kg N ha-1 in both the years. The mean daily ETc of wheat during its initial stage was found to be lower and almost constant and it increased continuously during vegetative stage, flowering and grain filling stage

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Stewart, J. Ryan, Roger Kjelgren, Paul G. Johnson, and Michael R. Kuhns. "Growth and Water Relations of Littleleaf Linden Trees Established in Irrigated Buffalograss and Kentucky Bluegrass." HortScience 40, no. 5 (2005): 1529–33. http://dx.doi.org/10.21273/hortsci.40.5.1529.

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Although transplanted trees typically establish and grow without incident in frequently irrigated turfgrass, their performance in precisely irrigated turfgrass in an arid climate is not known. We investigated the effect of precision irrigation scheduling on growth and water relations of balled-and-burlapped littleleaf linden (Tilia cordata Mill. `Greenspire') planted in buffalograss (Buchloë dactyloides [Nutt.] Engelm. `Tatanka') and kentucky bluegrass (Poa pratensis L.). Over 2 years, trees in turfgrass were irrigated either by frequent replacement based on local reference evapotranspiration

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Niu, Xiaoli, Puyu Feng, De-Li Liu, et al. "Deficit Irrigation at Pre-Anthesis Can Balance Wheat Yield and Water Use Efficiency under Future Climate Change in North China Plain." Biology 11, no. 5 (2022): 692. http://dx.doi.org/10.3390/biology11050692.

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Background. Deficit irrigation (DI) is a feasible strategy to enhance crop WUE and also has significant compensation effects on yield. Previous studies have found that DI has great potential to maintain crop production as full irrigation (FI) does. Therefore, adopting DI to improve crop production and safeguard groundwater resources is of great importance in water scarce regions, e.g., the North China Plain (NCP). Under the background of global warming, it is worth investigating whether DI continues to play such a key role under future climate scenarios. Methods. We studied the response of win

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Zhang, Hongjuan, Jianjun Wang, Mengzhu Liu, Yanjun Shen, and Hongwei Pei. "Water Budget of Urban Turf Field and Optimal Irrigation Schedule Simulation in an Ecotone between Semi-Humid and Semi-Arid Regions, Northern China." Agronomy 13, no. 1 (2023): 273. http://dx.doi.org/10.3390/agronomy13010273.

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Water security in the ecotone between semi-humid and semi-arid regions (EHA) is very vulnerable and sensitive to climate change and human interferences. Urban turf irrigation is a primary consumer of urban water resources in the EHA, which places huge pressures on water security by substantial irrigated water use due to the expansion of urban turf planting. Based on a 2-year (2020–2021) turf experiment in Zhangjiakou City, a typical water-deficit city in the EHA of northern China, the water budget for turf was measured and analyzed. Furthermore, the Root Zone Water Quality Model (RZWQM2) was e

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SUNDARAM, PREM K., SANJEEV KUMAR, SHIVANI SHIVANI, UJJWAL KUMAR, and SURAJIT MONDAL. "Tensiometer based irrigation scheduling in wheat (Triticum aestivum) in middle Indo-Gangetic plains." Indian Journal of Agricultural Sciences 92, no. 2 (2022): 231–35. http://dx.doi.org/10.56093/ijas.v92i2.122227.

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The most common method of irrigation in eastern India is through tube wells with a fixed irrigation interval, irrespective of the soil type and climatic demand resulting in over-irrigation or under-irrigation under different soil and weather situations. Soil matric potential may be an ideal criterion for irrigation, since soil texture, cultural practices and water management affect wheat irrigation water requirements. The present study deals with the effect of tensiometer based irrigation scheduling on crop productivity of wheat. The experiment was laid out in factorial randomized block design

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Dragonetti, Giovanna, and Roula Khadra. "Assessing Soil Dynamics and Improving Long-Standing Irrigation Management with Treated Wastewater: A Case Study on Citrus Trees in Palestine." Sustainability 15, no. 18 (2023): 13518. http://dx.doi.org/10.3390/su151813518.

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Irrigation with Treated Wastewater (TWW) is a well-known agricultural practice in Palestine. The long-term use of irrigation with TWW, a source of water and nutrients, can affect plant development, soil, and groundwater quality. Consequently, the frequency and the intervals of irrigation events should be adequately scheduled, especially when nutrients (TWW-N) cannot be separated from the water. Achieving good water quality implies its immediate reuse in irrigated agriculture. In contrast, long-term soil and groundwater quality conservation is marked by the complex mechanisms that correlate the

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Thakur, H., V. Praveen Rao, S. H. Malve, and Anil Dhake. "Evapotranspiration and crop coefficient of turmeric (Curcuma longa L.) under drip irrigation and Fertigation levels in Jalgaon, Maharashtra." Ecology, Environment and Conservation 29 (2023): S88—S94. http://dx.doi.org/10.53550/eec.2023.v29i01s.014.

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An attempt was made to determine the actual evapotranspiration and crop coefficient of turmeric at various growth stages under drip irrigation and fertigation scheduling during 2014-15 and 2015-16 at Jalgaon, Maharashtra. The results revealed that cured rhizome yield of turmeric increased significantly at each higher levels of drip irrigation up to 100% Epan and fertigation of 100% dose of N and K. Peak seasonal ETc (3.04 to 4.40 and 3.50 to 5.11 mm day-1) of turmeric was recorded at rhizome initiation stage (91-20 DAS) and rhizome development stage (121 to 210 days). The mean seasonal ETc of

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Kypris, Dedalos, Georgios Nikolaou, Eustathios Evangellides, and Damianos Neocleous. "A Hydraulic Evapotranspiration Multisensor." AgriEngineering 4, no. 4 (2022): 1164–70. http://dx.doi.org/10.3390/agriengineering4040072.

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An exclusively mechanical stand-alone automatic device, self-adjusting to weather changes for controlled irrigation, that operates only on the energy of piped water, without electricity, is the described low-cost “Hydraulic Evapotranspiration Multisensor-HEM”. It is composed of an Evaporation Pan with water left to evaporate, a Floater with a Magnet floating in this water, a Hydraulic Device managing a Hydraulic Water Valve having means to adjust irrigation frequency, and a system that returns water to said Pan, through an Adjustable Dripper, to replace that lost by evaporation. During the Eva

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Silva, Simão P., M. Isabel Valín, Susana Mendes, Claúdio Araujo-Paredes, and Javier J. Cancela. "Dual Crop Coefficient Approach in Vitis vinifera L. cv. Loureiro." Agronomy 11, no. 10 (2021): 2062. http://dx.doi.org/10.3390/agronomy11102062.

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Vineyard irrigation management in temperate zones requires knowledge of the crop water requirements, especially in the context of climate change. The main objective of this work was to estimate the crop evapotranspiration (ETc) of Vitis vinifera cv. Loureiro for local conditions, applying the dual crop coefficient approach. The study was carried out in a vineyard during two growing seasons (2019–2020). Three irrigation treatments, full irrigation (FI), deficit irrigation (DI), and rainfed (R), were considered. The ETc was estimated using the SIMDualKc model, which performs the soil water balan

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Silva, Simão P., M. Isabel Valín, Susana Mendes, Claúdio Araujo-Paredes, and Javier J. Cancela. "Dual Crop Coefficient Approach in Vitis vinifera L. cv. Loureiro." Agronomy 11, no. 10 (2021): 2062. http://dx.doi.org/10.3390/agronomy11102062.

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Vineyard irrigation management in temperate zones requires knowledge of the crop water requirements, especially in the context of climate change. The main objective of this work was to estimate the crop evapotranspiration (ETc) of Vitis vinifera cv. Loureiro for local conditions, applying the dual crop coefficient approach. The study was carried out in a vineyard during two growing seasons (2019–2020). Three irrigation treatments, full irrigation (FI), deficit irrigation (DI), and rainfed (R), were considered. The ETc was estimated using the SIMDualKc model, which performs the soil water balan

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Gálvez, Rodrigo, R. Callejas, G. Reginato, and M. C. Peppi. "Irrigation schedule on table grapes by stem water potential and vapor pressure deficit allows to optimize Water Use." Ciência e Técnica Vitivinícola 29, no. 2 (2014): 60–70. http://dx.doi.org/10.1051/ctv/20142902060.

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Arévalo, Jhon Jairo, Javier Enrique Vélez S., and Diego Sebastiano Intrigliolo. "Determination of an efficient irrigation schedule for the cultivation of rose cv. Freedom under greenhouse conditions in Colombia." Agronomía Colombiana 32, no. 1 (2014): 95–102. http://dx.doi.org/10.15446/agron.colomb.v32n1.40160.

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An experiment on rose (Rosa sp.) cv. Freedom was performed in a greenhouse on the Bogota Plateau, Colombia, to identify an efficient irrigation regime for this crop. The tested treatments were based on three irrigation doses, applying different fractions of the estimated crop evapotranspiration (ETc), calculated using a class A evaporation tank: i) 100% ETc (ETc100), ii) 80% ETc (ETc80) and iii) 70% ETc (ETc70). During the entire experimental period, from mid-May to early September, the crop had a constant production of floral stems. In all of the irrigation treatments, the soil and plant wate

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Safitri, Lisma. "Manajemen Irigasi Pembibitan Sawit (Elaeis guineensis) Presisi dengan Cropwat 8.0." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 8, no. 2 (2019): 97. http://dx.doi.org/10.23960/jtep-l.v8i2.97-106.

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The accurate water use information at each stage of plant growth is important to better understand the efficient and precise crop water requirement for optimal plant productivity. Nurseries of palm oil are a phase where young palm oil requires extra maintenance, particularly in meeting the plant water needs. The palm oil in the nursery phase require the regular irrigation schedule due to the vulnerable root systems. The purpose of this study was to calculate the oil palm water requirement with Cropwat 8.0 toward the precise irrigation management and provide a scenario for irrigation scheduling

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Shan, Baoying, Ping Guo, Shanshan Guo, and Zhong Li. "A Price-Forecast-Based Irrigation Scheduling Optimization Model under the Response of Fruit Quality and Price to Water." Sustainability 11, no. 7 (2019): 2124. http://dx.doi.org/10.3390/su11072124.

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Different from the traditional irrigation optimization model based only on the water production function, in this study, we explored the water–yield–quality–benefit relationship and established a general irrigation scheduling optimization framework. To establish the framework, (1) an artificial neural network coupled with ensemble empirical mode decomposition (EEMD-ANN) is used to decompose the original price time series into several subseries and then forecast each of them; (2) factor analysis and a technique for order of preference by similarity to ideal solution (FA-TOPSIS), as an integrate

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Zapata-García, Susana, Abdelmalek Temnani, Pablo Berríos, Pedro J. Espinosa, Claudia Monllor, and Alejandro Pérez-Pastor. "Optimizing Crop Water Productivity in Greenhouse Pepper." Agronomy 14, no. 5 (2024): 902. http://dx.doi.org/10.3390/agronomy14050902.

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Although advanced production systems have been developed in the last 20 years, water scarcity is still a growing problem in agriculture. This study aims to evaluate the effect of different strategies that combine the application of seaweed and microbial biostimulants with regulated deficit irrigation (RDI) strategies on the irrigation water productivity (WPI), fruit quality parameters and soil enzymatic activity in pepper plants (Capsicum annum sp.) under two commercial greenhouse conditions. In each trial, two treatments were applied: (i) irrigation according to Farmer criteria without biosti

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Cui, Yi, Shangming Jiang, Ping Feng, Juliang Jin, and Hongwei Yuan. "Winter Wheat Evapotranspiration Estimation under Drought Stress during Several Growth Stages in Huaibei Plain, China." Water 10, no. 9 (2018): 1208. http://dx.doi.org/10.3390/w10091208.

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Estimating crop evapotranspiration under drought stress provides the theoretical foundation for optimizing irrigation schedule and reducing agricultural drought risk. Winter wheat water deficit plot experiments were conducted based on large-scale weighing lysimeters in the Huaibei Plain. The response of evapotranspiration to water deficit during several growth stages was analyzed; four crop coefficients were optimized and then evapotranspiration under drought stress was estimated with the dual crop coefficient method and the genetic algorithm. Drought stress not only reduced evapotranspiration

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Gajanayake, Bandara, K. Raja Reddy, Mark W. Shankle, and Ramon A. Arancibia. "Early-season Soil Moisture Deficit Reduces Sweetpotato Storage Root Initiation and Development." HortScience 48, no. 12 (2013): 1457–62. http://dx.doi.org/10.21273/hortsci.48.12.1457.

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Sweetpotato [Ipomoea batatas (L.) Lam.] storage root formation is a complex developmental process. Little quantitative information is available on storage root initiation in response to a wide range of soil moisture levels. This study aimed to quantify the effects of different levels of soil moisture on sweetpotato storage root initiation and to develop functional relationships for crop modeling. Five levels of soil moisture, 0.256, 0.216, 0.164, 0.107, and 0.058 m3·m−3 soil, were maintained using sensor-based soil moisture monitoring and semiautomated programmed irrigation. Two commercial swe

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Lin, Kuan-Hung, Jui-Mei Li, Chun-Wei Wu, and Yu-Sen Chang. "Flowering Regulation of Potted Bougainvillea Plants under Five Water Treatments [RESEARCH NOTE]." Philippine Agricultural Scientist 104, no. 4 (2021): 417–27. https://doi.org/10.62550/fj22038020.

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Bougainvillea (Bougainvillea buttiana) is a very popular evergreen landscape plant in the tropical and subtropical areas. The objective of this study was to investigate the growth, flowering, and physiological performance of bougainvillea ‘Taipei Red’ cultivar in response to water-stress conditions that can potentially be used to maximize the economic efficiency and benefits in the development and ACC potential of bougainvillea plants grown in controlled environments. Potted plants were subjected to five different levels of soil VWC: 60% (control), 40%, 20%, 1/3 of leaves visually observed to

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