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Agronomy
Special Issues
Effect of Brackish and Marginal Water on Irrigated Agriculture
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Effect of Brackish and Marginal Water on Irrigated Agriculture

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Water Use and Irrigation".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 1585

Special Issue Editors

Prof. Dr. Alexsandro Oliveira Da Silva

E-Mail Website
Guest Editor
Center of Agrarian Sciences, Federal University of Ceará (UFC), Av. Mr. Hull 2977, Fortaleza 60356-001, CE, Brazil
Interests: irrigation and drainage; salinity in agriculture
Dr. Ênio Farias de França e Silva

E-Mail Website
Guest Editor
Department of Agricultural Engineering, Federal Rural University of Pernambuco, Recife 52171-900, PE, Brazil
Interests: salinity in agriculture; marginal water on irrigated agriculture; irrigation and drainage

Special Issue Information

Dear Colleagues,

Faced with the growing demand for food and the increasing exploitation of water resources for agriculture, the use of alternative sources of water becomes an important option, especially in the current social conjecture, with the occupation of urban centers in remote regions, in which water of different qualities is used for food production.

The results that explore the control and use of brackish and marginal waters in agricultural production must be scientifically tested for a more efficient use of water resources, mitigating environmental impacts and making agriculture truly sustainable.

This Special Issue welcomes original research articles and reviews focusing on the use of brackish and marginal waters for irrigated agriculture, including the different cultivation systems produced in the world, as well as strategies to mitigate the impacts caused by the use of these waters.

Prof. Dr. Alexsandro Oliveira Da Silva
Dr. Ênio Farias de França e Silva
Guest Editors

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. Agronomy 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

  • salinity
  • water use efficiency
  • low-quality water
  • irrigation management
  • water reuse

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Published Papers (2 papers)

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Research

13 pages, 762 KiB  
Article
Utilising Reclaimed Water for Papaya (Carica papaya L.) Cultivation in Cape Verde: A Detailed Case Study
by Vanessa Mendoza-Grimón, Regla Amorós, Juan Ramón Fernández-Vera, Ernestina Lopes da Veiga and Maria del Pino Palacios-Díaz
Agronomy 2024, 14(11), 2726; https://doi.org/10.3390/agronomy14112726 - 19 Nov 2024
Viewed by 395
Abstract
Papaya (Carica papaya L.) is essential for food security, providing economic benefits in tropical and subtropical regions. However, its high water requirements pose challenges, especially in water-scarce areas like Cape Verde. This study hypothesises that reclaimed water (RW) irrigation can promote papaya [...] Read more.
Papaya (Carica papaya L.) is essential for food security, providing economic benefits in tropical and subtropical regions. However, its high water requirements pose challenges, especially in water-scarce areas like Cape Verde. This study hypothesises that reclaimed water (RW) irrigation can promote papaya production and investigates how water can be managed to ensure sustainability and increase agricultural productivity. An experiment was conducted using Carica papaya L. var Solo-nº8, focusing on subsurface drip irrigation (SDI) with RW. Three irrigation treatments were compared, namely, T1: RW with SDI; T2: RW with drip irrigation (DI); and T3: conventional water (CW) with SDI. The study evaluated crop yields and water use efficiency (WUE) over 13 months, monitoring soil and water quality and papaya growth and yields. Despite quality concerns, RW maintained soil fertility and ensured sustainable reuse. Papaya demonstrated high adaptability and productivity under experimental conditions. T1 significantly increased the cumulative fruit yield (69 t/ha) compared to T2 (65 t/ha) and T3 (62.7 t/ha). T1 also had the highest WUE (5.97 kg/m3), demonstrating the effectiveness of RW and SDI in optimising water use. The results indicate that RW can be a viable alternative to conventional water sources, providing new insights into sustainable agricultural practices and improving food security in arid and semi-arid regions. Full article
(This article belongs to the Special Issue Effect of Brackish and Marginal Water on Irrigated Agriculture)
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16 pages, 2216 KiB  
Article
Brackish Water, Phosphate Fertilization and Trichoderma in the Agronomic Performance of Beet Crops
by Andreza Silva Barbosa, Alexsandro Oliveira da Silva, Geocleber Gomes de Sousa, Maria Vanessa Pires de Souza, Márcio Henrique da Costa Freire, Geovana Ferreira Goes, Arthur Prudêncio de Araújo Pereira, Thales Vinícius de Araújo Viana, Raimundo Nonato Távora Costa, Claudivan Feitosa de Lacerda, Geronimo Ferreira da Silva and Mário Monteiro Rolim
Agronomy 2024, 14(6), 1306; https://doi.org/10.3390/agronomy14061306 - 17 Jun 2024
Cited by 1 | Viewed by 790
Abstract
The study hypothesis proposes that the use of Trichoderma, associated with fertilization with 100% of the recommended phosphorus, may mitigate saline stress and maximize the productivity and quality of the tuberous root. This study aims to evaluate the mitigating effects of phosphate [...] Read more.
The study hypothesis proposes that the use of Trichoderma, associated with fertilization with 100% of the recommended phosphorus, may mitigate saline stress and maximize the productivity and quality of the tuberous root. This study aims to evaluate the mitigating effects of phosphate fertilization and Trichoderma harzianum in beet plants under salt stress, by measuring the initial growth, leaf gas exchange, productivity and quality of the beet. The experimental design used was entirely randomized, in a 3 × 2 × 2 factorial scheme, referring to three doses of phosphate fertilization (25%, 50% and 100%), with and without the use of Trichoderma-based inoculation, and two levels of electrical conductivity of the irrigation water (0.5 and 6.2 dS m−1). Salt stress negatively affected the leaf area of the beet. The shoots’ dry mass was reduced as the electrical conductivity of the irrigation water increased, especially in the treatment with the 25% P2O5 dose. Salt stress reduced photosynthesis to a greater extent at the 25% P2O5 dose and in the absence of Trichoderma harzianum. Increasing the electrical conductivity of the irrigation water reduced transpiration and increased leaf temperature at the 25% P2O5 dose and in the presence of Trichoderma harzianum. The 25% P2O5 dose increased the stomatal conductance of the beet. The higher electrical conductivity of the irrigation water negatively affected water use efficiency, most significantly at the 25% P2O5 dose. Our data showed that the doses of 50% and 100% P2O5 were more efficient at increasing the productivity and quality of the beet, with the tuberous root diameter being higher under the lower electrical conductivity of the water and the absence of Trichoderma harzianum. The pH was high under the lowest electrical conductivity of the water, with a dose of 25% P2O5 and the absence of Trichoderma harzianum. Full article
(This article belongs to the Special Issue Effect of Brackish and Marginal Water on Irrigated Agriculture)
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