Methods and Tools for Sustainable Agricultural Water Management

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Resources Management, Policy and Governance".

Deadline for manuscript submissions: 25 April 2025 | Viewed by 1007

Special Issue Editors


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Guest Editor
Plant and Environmental Sciences Department, New Mexico State University, Las Cruces, NM 88003, USA
Interests: regulated irrigation; salinity; crop water use efficiency; uncultivated agricultural land; precise irrigation decision

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Guest Editor
Plant and Environmental Sciences Department, New Mexico State University, Las Cruces, NM, USA
Interests: brackish groundwater; water use efficiency; modeling water and energy transport; solute transport

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Guest Editor Assistant
Plant and Environmental Sciences Department, New Mexico State University, Las Cruces, NM, USA
Interests: ecohydrology; stable isotopes; HYDRUS; electrical resistivity

Special Issue Information

Dear Colleagues,

Irrigated agriculture is the primary water user, consuming about 90% of all consumptive water use in water-scarred regions. Consequently, there is growing interest in finding ways to save water from irrigated lands, especially in arid and semi-arid areas. Using the tools of soil moisture sensors, weather forecasting, GIS, and remote sensing, as well as wastewater treatment systems, could create a highly efficient and precise agricultural water management system. The approaches of applying water-saving irrigation systems (drip/sprinkler irrigation), selecting drought-resistent crops, and soil amendment practices such as conservation tillage and cover crops could not only significantly reduce water usage but also improve soil health and help retain soil moisture. These methods and tools, when integrated, can significantly enhance the sustainability of agricultural water management, ensuring that water resources are used efficiently and responsibly. Therefore, this Special Issue aims to discuss the latest advances in methods and tools for sustainable agricultural water management.

All manuscripts related to the proposed aspects are welcome. The Special Issue may include, but is not limited to, the following topics:

(1) Monitoring and modeling crop water use in cultivated fields;

(2) Crop water relations, crop yields and quality, and water productivity;

(3) Deficit irrigation and salinity management strategies for improving water use efficiency in agriculture;

(4) Conservation tillage and cover crops;

(5) Farm-level and regional water management in agriculture;

(6) Use of brackish water or RO concentrate in agriculture;

(7) Other tools and methods for sustainable agricultural water management.

We look forward to receiving your submissions.

Dr. Hui Yang
Prof. Dr. Manoj K. Shukla
Guest Editors

Dr. Yusen Yuan
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • crop water relations
  • water productivity
  • deficit/salinity irrigation
  • conservation agriculture
  • regional water management

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Published Papers (1 paper)

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Research

18 pages, 4757 KiB  
Article
Determination of Crop Coefficients for Flood-Irrigated Winter Wheat in Southern New Mexico Using Three ETo Estimation Methods
by Hui Yang, Manoj K. Shukla, Adam Gonzalez and Yusen Yuan
Water 2024, 16(17), 2463; https://doi.org/10.3390/w16172463 - 30 Aug 2024
Viewed by 491
Abstract
Crop coefficient (Kc), the ratio of crop evapotranspiration (ETc) to reference evapotranspiration (ETo), is used to schedule an efficient irrigation regime. This research was conducted to investigate variations in ETc and growth-stage-specific Kc in flood-irrigated [...] Read more.
Crop coefficient (Kc), the ratio of crop evapotranspiration (ETc) to reference evapotranspiration (ETo), is used to schedule an efficient irrigation regime. This research was conducted to investigate variations in ETc and growth-stage-specific Kc in flood-irrigated winter wheat as a forage crop from 2021 to 2023 in the Lower Rio Grande Valley of southern New Mexico, USA, and evaluate the performances of two temperature-based ETo estimation methods of Hargreaves–Samani and Blaney–Criddle with the widely used Penman–Monteith method. The results indicated that the total ETc over the whole growth stage for flood-irrigated winter wheat was 556.4 mm on a two-year average, while the average deep percolation (DP) was 2.93 cm and 2.77 cm, accounting for 28.8% and 27.2% of applied irrigation water in the 2021–2022 and 2022–2023 growing seasons, respectively. The ETo over the growing season, computed using Penman–Monteith, Hargreaves–Samani, and Blaney–Criddle equations, were 867.0 mm, 1015.0 mm, and 856.2 mm in 2021–2022, and 785.6 mm, 947.0 mm, and 800.1 mm in 2022–2023, respectively. The result of global sensitivity analysis showed that the mean temperature is the main driving factor for estimated ETo based on Blaney–Criddle and Hargreaves–Samani methods, but the sensitivity percentage for Blaney–Criddle was 76.9%, which was much higher than that of 48.9% for Hargreaves–Samani, given that Blaney–Criddle method is less accurate in ETo estimation for this area, especially during the hottest season from May to August. In contrast, wind speed and maximum temperature were the main driving factors for the Penman–Monteith method, with sensitivity percentages of 70.9% and 21.9%, respectively. The two-year average crop coefficient (Kc) values at the initial, mid, and late growth stage were 0.54, 1.1, and 0.54 based on Penman–Monteith, 0.51, 1.0 and 0.46 based on Blaney–Criddle, and 0.52, 1.2 and 0.56 based on Hargreaves–Samani. The results showed that the Hargreaves–Samani equation serves as an alternative tool to predict ETo when fewer meteorological variables are available. The calculated local growth-stage-specific Kc can help improve irrigation water management in this region. Full article
(This article belongs to the Special Issue Methods and Tools for Sustainable Agricultural Water Management)
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