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Water
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Green and Efficient Utilization of Agricultural Water
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Green and Efficient Utilization of Agricultural Water

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water, Agriculture and Aquaculture".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 5567

Special Issue Editors

Prof. Dr. Ningbo Cui

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Guest Editor
College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China
Interests: precision irrigation and deficit irrigation; agricultural water resources management; agrometeorology and evapotranspiration; drip fertigation regulation; modelling of crop growth
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yaosheng Wang

E-Mail Website
Guest Editor
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
Interests: plant ecophysiology at different levels; plant-water-environment interactions; plant stress biology; precision and smart agriculture
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Junliang Fan

grade E-Mail Website
Guest Editor
College of Water Recourses and Architectural Engineering, Northwest A&F University, Yangling 712100, China
Interests: drip irrigation; evapotranspiration; water balance; crop–water relations; water resources management; soil fertility
Special Issues, Collections and Topics in MDPI journals
Dr. Chunwei Liu

E-Mail Website
Guest Editor
School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, China
Interests: developing field-scale evapotranspiration models using sap flow and a microlysimeter; time and spatial variation of actual evapotranspiration; canopy photography analysis for structure parameters; crop growth simulation and validation; stem diameter fluctuation and water potential relationship
Prof. Dr. Li Guo

E-Mail Website
Guest Editor
College of Water Resource and Hydropower, Sichuan University, Chengdu 610064, China
Interests: hydropedology; hillslope hydrology; climate change; soil moisture; ecohydrology; remote sensing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Agro-ecosystem is the main consumer of water resources worldwide and plays a fundamental role in food production and raw material supply. The global shortage and inefficient utilization of agricultural water resources as well as serious non-point source pollution are widespread problems. Water resources shortage threatens the sustainable development of agriculture, food security and social stability. In addition, population growth, industrialization, urbanization and the intensification of climate change result in the increasingly aggravated water shortage and acute contradiction between water supply and demand globally.

Climate change is expected to deteriorate in the future, and the shortage of agricultural irrigation water resources is becoming more prominent. How to improve the water productivity of limited water resources has become a highly concerning issue in the world. Crop water requirement theory and deficit irrigation, fertigation technology and scheduling, water-saving and quality-enhancing irrigation theory and regulation, agronomic water-saving mechanism and method, multi-process coupling regulation method of water use in irrigation district and regional green and efficient water-saving technology can effectively alleviate the water crisis, which is the key to solve water resources shortage and low utilization efficiency. This issue is to provide scientific support for the green and efficient utilization of global agricultural water resources.

Prof. Dr. Ningbo Cui
Prof. Dr. Yaosheng Wang
Prof. Dr. Junliang Fan
Dr. Chunwei Liu
Prof. Dr. Li Guo
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. Water is an international peer-reviewed open access semimonthly 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

  • precise irrigation management
  • agronomic water-saving technique
  • water-saving and quality-enhancing
  • coupling regulation of water and fertilizer
  • agricultural water management

Published Papers (2 papers)

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Research

15 pages, 4446 KiB  
Article
Magnetized Saline Water Irrigation Enhances Soil Chemical and Physical Properties
by Ahmed Elsayed Abdelghany, Ahmed I. Abdo, Mohamed G. Alashram, Kamel Mohamed Eltohamy, Jiabei Li, Youzhen Xiang and Fucang Zhang
Water 2022, 14(24), 4048; https://0-doi-org.brum.beds.ac.uk/10.3390/w14244048 - 12 Dec 2022
Cited by 3 | Viewed by 1739
Abstract
Due to rapid population growth and pressure on water resources, it is necessary to use economic and non-traditional techniques for irrigation. One of these techniques is the use of salt water after treatment with a magnetic force. A simulation experiment was conducted with [...] Read more.
Due to rapid population growth and pressure on water resources, it is necessary to use economic and non-traditional techniques for irrigation. One of these techniques is the use of salt water after treatment with a magnetic force. A simulation experiment was conducted with soil columns using three quantities of saline water: 0, 3, and 6 g L−1 (S0, S3, and S6). Magnetic forces of 0, 1000, 2000, 3000, 4000, 5000, 6000, and 7000 gauss were used to study the effects of magnetic forces on leachate and soil physicochemical properties at different depths. The results at all soil depths showed that the pH decreased with increasing salinity from S0 to S3 and S6 by an average of 8.44, 8.28, and 8.27%, respectively. Soil EC decreased significantly with depth by 10–35%. The maximum SAR, SSP, and CROSS values (16.3, 51.1, and 17.6, respectively) were reported when no magnetic force was used, while the lowest values (13.9, 49.9, and 15.3) were recorded when using 3000 gauss under S6 within the soil profile. Magnetizing the water halved the EC of the leachate under S0, while it decreased the EC by 12.4% under S3. Increasing the magnetic force enhanced the leachate SAR, SSP, and CROSS values by 4.9–20.4% on average under S3 and S6. Magnetic forces augmented the hydraulic conductivity at the same salinity level and with increasing salinity, resulting in an increment of 50% at S3 and S6 compared with S0. After nine hours, the maximum cumulative infiltration rate was under 1000 and 4000 gauss. Our results demonstrated the important effects of magnetically treated irrigation water and could therefore support its application in agriculture under conditions of low water resources and quality. Full article
(This article belongs to the Special Issue Green and Efficient Utilization of Agricultural Water)
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17 pages, 5724 KiB  
Article
Salt Leaching with Brackish Water during Growing Season Improves Cotton Growth and Productivity, Water Use Efficiency and Soil Sustainability in Southern Xinjiang
by Chao Xiao, Meng Li, Junliang Fan, Fucang Zhang, Yi Li, Houliang Cheng, Yuepeng Li, Xianghao Hou and Junqing Chen
Water 2021, 13(18), 2602; https://0-doi-org.brum.beds.ac.uk/10.3390/w13182602 - 21 Sep 2021
Cited by 11 | Viewed by 2740
Abstract
Low water use efficiency and soil salinization are two main factors limiting cotton production in southern Xinjiang. A field experiment was conducted to investigate the effects of brackish water irrigation levels on cotton growth, yield and soil water–salt dynamics in southern Xinjiang, so [...] Read more.
Low water use efficiency and soil salinization are two main factors limiting cotton production in southern Xinjiang. A field experiment was conducted to investigate the effects of brackish water irrigation levels on cotton growth, yield and soil water–salt dynamics in southern Xinjiang, so as to provide a theoretical and experimental basis for the development and utilization of brackish water. There were three irrigation levels: W1 (75 mm + 80%ETc), W2 (150 mm + 80%ETc) and W3 (240 mm + 80%ETc) at the seeding stage (S1), seeding stage + budding stage (S2) and seeding stage + budding stage + flowering stage (S3), with an irrigation amount of 450 mm during spring as the CK (the local reference level) (10 treatments in total). The salt of the local brackish water used was 3 g·L−1. Film-mulched drip irrigation experiments were conducted to observe cotton growth, aboveground dry matter, cotton yield, soil water and salt distribution, as well as other indicators. The results showed that the irrigation applications of S3 can improve the soil moisture and salt distribution of the root zone. The salt accumulation at the harvest stage of W3S3 was reduced by 39.5% and 2.8% compared with W3S1 and W3S2, respectively. More frequent irrigation applications can reduce a soil’s total dissolved solids (TDS), avoid exceeding the salt tolerance threshold of 4.8 g kg−1 and lead to higher aboveground dry matter and cotton yields. W3S3 obtained the highest yield of 5685 kg ha−1, which was increased by 39.59%, 7.85% and 11.25% compared with W3S1, W3S2 and CK, respectively. The higher the irrigation amount, the less water use efficiency (WUE), following the order of S3 > S2 > S1 > CK at various growth stages. W3S1 obtained the lowest WUE of 0.64 kg·m−3. Comprehensively considering the effects of soil moisture retention and salt suppression, cotton growth, yield and water use efficiency, an irrigation amount of 240 mm brackish water at three growth stages, with 80%ETc for irrigation, is recommended for the sustainable production of cotton in southern Xinjiang. Full article
(This article belongs to the Special Issue Green and Efficient Utilization of Agricultural Water)
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