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Agriculture
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New Irrigation Strategies to Improve Crop Water Efficiency
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New Irrigation Strategies to Improve Crop Water Efficiency

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Water Management".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 4780

Special Issue Editor

Prof. Dr. Pete Jacoby

E-Mail Website
Guest Editor
Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99164, USA
Interests: drip irrigation; ecology; viticulture; agronomy; watershed hydrology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water availability has emerged as a threat to profitable and sustained crop production in many irrigated regions of the world. These areas typically heavily rely on surface water stored in reservoirs or from groundwater aquifers withdrawn by pumping. Adjudication of surface water resources for agricultural crop production appears to be increasingly reduced by regulatory authorities in order to satisfy the demands of an array of competing users, including domestic use for large and growing urban municipalities, industrial use, fisheries, endangered species, recreational, transportation, and energy production. Growers are increasingly facing decisions such as whether to shift to more water efficient crops or to discontinue their traditional farming practices. These trends have led to greater emphasis on development and adoption of more efficient irrigation practices. Crop water efficiency can be defined as yield of product per unit of water applied. In some crops, the production goal may involve a balancing of yield and quality of product according to the impact of water amount on crop quality.

The goal of this Special Issue is to feature new and emerging research on new techniques and strategies for improving crop water efficiency to sustain irrigated agriculture when facing prospects of water shortages. Please consider submitting a manuscript involving original research on new irrigation strategies, including improved irrigation scheduling, sensor-driven decision support systems, new forms of water-saving techniques, and more efficient irrigation delivery methods.

Prof. Dr. Pete Jacoby
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agriculture is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • irrigation strategies
  • crop water efficiency
  • water resources
  • irrigated agriculture
  • water-saving techniques

Published Papers (3 papers)

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Research

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21 pages, 5262 KiB  
Article
Using Deficit Irrigation Strategies and Organic Mulches for Improving Yield and Water Productivity of Mango under Dry Environment Conditions
by Abdulrahman Alhashimi, Arwa Abdulkreem AL-Huqail, Mustafa H. Hashem, Basem M. M. Bakr, Waleed M. E. Fekry, Hosny F. Abdel-Aziz, Ashraf E. Hamdy, Ramadan Eid Abdelraouf and Maher Fathy
Agriculture 2023, 13(7), 1415; https://doi.org/10.3390/agriculture13071415 - 17 Jul 2023
Cited by 5 | Viewed by 1551
Abstract
Many techniques have been and are being made to find alternatives to water-saving practices. Among them, Partial root drying (PRD), one effective approach, plays a major role in reducing the harmful effects of water deficit stress. Field experiments were carried out on mango [...] Read more.
Many techniques have been and are being made to find alternatives to water-saving practices. Among them, Partial root drying (PRD), one effective approach, plays a major role in reducing the harmful effects of water deficit stress. Field experiments were carried out on mango trees for a private farm in Egypt over the course of two years, 2020/2021 to 2021/2022, in an area with sandy soil, hot summer conditions, and cold and rainy winter conditions. In the experiment that was carried out, the experimental design included using different irrigation strategies (I1, 100% full irrigation “FI”; I2, 75% FI; I3, 50% FI; and I4 (PRD), 50% FI) in the main plot and different amounts of organic mulch in the soil (L0, no layers of organic soil mulch, used as a control; L1, a single layer of organic soil mulch; L2, two layers of organic soil mulch; and L3, three layers of organic soil mulch) in subplots of the main plot in order to inspect the impact of the treatments on yield, water productivity, and energy usage under arid conditions. To meet the study’s objective, two field experiments were carried out at a private farm. Our results demonstrate a general decrease in water stress and salt accumulation inside the root-zone area with PRD and L3. During the 2020/2021 and 2021/2022 seasons the PRD strategy increased fruit yields by 3.7 and 7.3% and water productivity by 51.9 and 53.1%, respectively, compared with the control treatment (I1) while reducing the amount of applied irrigation water by 50%. The PRD strategy along with organic mulching showed superior results with respect to increasing mango yields and water productivity. In general, PRD can be used as a good technique to save water and energy by up to 50% while enhancing productivity, ultimately improving mango yields under arid climatic conditions. Thus, it may prove a good adaptation strategy for current and future water shortage scenarios involving climate change. Full article
(This article belongs to the Special Issue New Irrigation Strategies to Improve Crop Water Efficiency)
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0 pages, 1915 KiB  
Article
Effect of Surface and Subsurface Drip Irrigation with Treated Wastewater on Soil and Water Productivity of Okra (Abemoschus esculentus) Crop in Semi-Arid Region of Tunisia
by Malika Mahmoudi, Mohamed Naceur Khelil, Sarra Hechmi, Basma Latrech, Rim Ghrib, Abdelhamid Boujlben and Samir Yacoubi
Agriculture 2022, 12(12), 2048; https://doi.org/10.3390/agriculture12122048 - 29 Nov 2022
Cited by 4 | Viewed by 1909 | Correction
Abstract
Under semi-arid conditions, irrigated agriculture faces hard competition for water. It is against this backdrop that appropriate management of irrigation techniques and water resources becomes a major concern. This study investigated the effect of surface (SDI) and subsurface drip irrigation (SSDI) with domestic [...] Read more.
Under semi-arid conditions, irrigated agriculture faces hard competition for water. It is against this backdrop that appropriate management of irrigation techniques and water resources becomes a major concern. This study investigated the effect of surface (SDI) and subsurface drip irrigation (SSDI) with domestic treated wastewater (TWW) and fresh water (FW) on soil water dynamics, salinity, yield, and mineral nutrition of okra. The experimental design was set-up based on two adjacent plots according to the water quality: Fresh Water (FW) T1 and domestic Treated Wastewater (TWW) T2. Results showed that measured soil water contents (SWCs), under TWW treatment (T2), were greater than their corresponding measurements under FW (T1), and in particular at 35 cm depth. Meanwhile, for both water qualities, soil Electrical Conductivity (EC) registered at 5 cm depth was higher than those measured at 35 cm, with values ranging from 0.14 to 0.36 mS·cm−1 and from 0.20 to 0.47 mS·cm−m for T1 and T2, respectively. Regarding crop yield, a statistically significant increase (p = 0.05) in okra fresh yield was observed when TWW was used. Fresh yield in SDI was 2.55 t·ha−1 and 3.9 t·ha−1 in T1 and T2, respectively. Nevertheless, results indicated that lateral depth did not significantly affect okra fresh yield. Moreover, a significant higher irrigation water productivity (WPirrig) with TWW (1.08 ± 0.26 and 1.23 ± 0.18 kg m−1) was observed, which was nearly double those obtained with FW (0.72 ± 0.33 to 0.78 ± 0.18 kg m−1). Appropriate use of SSDI with TWW stands as an irrigation management technique to improve yield and irrigation water productivity of okra crops. Full article
(This article belongs to the Special Issue New Irrigation Strategies to Improve Crop Water Efficiency)
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1 pages, 405 KiB  
Correction
Correction: Mahmoudi et al. Effect of Surface and Subsurface Drip Irrigation with Treated Wastewater on Soil and Water Productivity of Okra (Abemoschus esculentus) Crop in Semi-Arid Region of Tunisia. Agriculture 2022, 12, 2048
by Malika Mahmoudi, Mohamed Naceur Khelil, Sarra Hechmi, Basma Latrech, Rim Ghrib, Abdelhamid Boujlben and Samir Yacoubi
Agriculture 2024, 14(3), 417; https://doi.org/10.3390/agriculture14030417 - 5 Mar 2024
Viewed by 548
Abstract
The authors wish to make the following corrections to the original paper [...] Full article
(This article belongs to the Special Issue New Irrigation Strategies to Improve Crop Water Efficiency)
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