Review
Agronomy
Alfassassi Arouna, Israel K. K. Dzomeku, Abdul-Ganiyu Shaibu, Abdul Rahman Nurudeen
Summary: Facing climate change and population growth, precision irrigation is crucial for conserving water resources, improving rice productivity, and promoting efficient rice cultivation. This paper reviews various technologies and approaches for assessing the water requirements of rice crops, aiming to contribute to water saving in irrigated rice production. The studies consulted show that irrigation water conservation includes a range of practices, from assessing crop water requirements to implementing water-saving practices in the field. Water-conserving irrigation systems, water-saving irrigation methods, and water-conserving agronomic practices are categorized as irrigation water conservation technologies. The influence of different tools for irrigation water use efficiency is highlighted. This paper provides researchers with knowledge on water-saving methods for estimating rice crop water requirements and contributes to improving the performance of irrigated rice cultivation systems using water conservation technologies.
Article
Environmental Sciences
Y. Xiao, L. Fang, K. W. Hipel
Summary: Two basin-wide hydrologic-economic optimization models were presented to estimate water conservation potential while maintaining the same economic output level, considering different interpretations of water consumption. The results show that substantial water can be conserved without sacrificing overall economic output, with irrigation users contributing the most to conservation and being compensated by benefits from municipal and industrial users. Considering interactions among users is crucial, as independent actions by industrial users limit overall water conservation. The implications of the study help policy makers understand current water usage and aid in making informed decisions for water demand management.
JOURNAL OF ENVIRONMENTAL INFORMATICS
(2021)
Article
Agronomy
Dillon Russell, Gurbir Singh, Nicolas Quintana-Ashwell, Gurpreet Kaur, Drew Gholson, L. Jason Krutz, Kelly A. Nelson
Summary: In order to conserve groundwater levels and maintain crop productivity, it is crucial to find more effective methods. This study aimed to determine the optimal combination of cover crop and irrigation sensor threshold for maximizing soybean yield, irrigation water use efficiency, water productivity, and farm profitability. The results showed that the highest soybean yield was achieved with hairy vetch cover crop under wet irrigation threshold in 2020, but no differences were observed in 2021. Water productivity was lower under the wet irrigation threshold compared to other treatments in 2020 and at least 23% lower in wet threshold treatments than dry threshold treatments in 2021. Irrigation water use efficiency was higher under the dry irrigation threshold than the wet irrigation threshold in 2020. When averaged over two years, economic returns were reduced with cover crops compared to no cover crop, except for the wheat-radish-turnip mix under the dry threshold treatments. These findings suggest the need for long-term evaluation of the impact of cover crops under different irrigation regimes.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Ratneswar Poddar, P. U. Acharjee, K. Bhattacharyya, S. K. Patra
Summary: This study compared the effects of three irrigation methods and three rice varieties on growth, yield, water and energy productivity, and economics of rice cultivation. The results showed that continuous ponding (CP) irrigation method resulted in the highest growth parameters, yield attributes, and yield, followed by alternate wetting and drying (AWD) method. Among the rice varieties, GB-1 had higher yields and yield variables. AWD irrigation coupled with the GB-1 variety yielded the highest grain yield with maximum water saving, water productivity, energy use efficiency, and benefit-cost ratio.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Green & Sustainable Science & Technology
Jin Guo, Lijian Zheng, Juanjuan Ma, Xufeng Li, Ruixia Chen, Jan Hopmans
Summary: This paper conducted a meta-analysis to investigate the effects of subsurface irrigation on crop yield, water productivity, and irrigation water productivity. The results showed that subsurface irrigation can increase crop yield, water productivity, and irrigation water productivity compared to surface irrigation. The study also found that factors such as environmental and management conditions, irrigation water volume, and fertilization have significant effects on the effectiveness of subsurface irrigation.
Article
Agronomy
Haijun Liu, Congyan Yin, Zhuangzhuang Gao, Lizhu Hou
Summary: In a cucumber irrigation experiment conducted in greenhouses in North China, optimizing irrigation scheduling by controlling soil water conditions with an SMP threshold between -15 and -20 kPa, and a wetting depth of 20 cm, can be recommended for improving cucumber yields and water productivity.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Plant Sciences
Kulvir Singh, Prabhsimran Singh, Manpreet Singh, Sudhir Kumar Mishra, Rana Rashid Iqbal, Ibrahim Al-Ashkar, Muhammad Habib-ur-Rahman, Ayman El Sabagh
Summary: In India, adopting the sub-surface drip fertigation method can save irrigation water and increase cotton yield.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Kiranmoy Patra, C. M. Parihar, H. S. Nayak, Biswajit Rana, D. R. Sena, Anjali Anand, K. Srikanth Reddy, Manojit Chowdhury, Renu Pandey, Atul Kumar, L. K. Singh, M. K. Ghatala, H. S. Sidhu, M. L. Jat
Summary: The combination of conservation agriculture (CA) and sub-surface drip (SSD) irrigation, specifically CA+ and PCA+, showed significant advantages in terms of yield, water use efficiency, and profitability in maize cultivation. These findings highlight the potential of this technology in addressing the declining groundwater issue in the Indo-Gangetic Plains.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agronomy
Mohamed O. A. Rady, Wael M. Semida, Saad. M. Howladar, Taia A. Abd El-Mageed
Summary: Irrigation water scarcity is a main constraint affecting global crop production. The study showed that raised bed planting under deficit irrigation can compensate for the negative effects of water stress on wheat plants. Combining raised beds with 80% crop evapotranspiration significantly increased growth characteristics, photosynthetic efficiency, yield, and irrigation crop water productivity of wheat plants.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Water Resources
Upali A. Amarasinghe, Alok Sikka, Vidya Mandave, R. K. Panda, Sunil Gorantiwar, K. Chandrasekharan, Sunil K. Ambast
Summary: The study reveals that there is little gap between the irrigation potential created and utilized within the canal command area. However, the consumptive water use of irrigation is higher in the expanded water influence zone due to the reuse of return flows. Future investments should focus on enhancing economic water productivity to improve resilience in the farming community affected by water scarcity.
Article
Green & Sustainable Science & Technology
Jiali Xing, Wenjiao Shi, Xiangzheng Deng, Changhe Lu, Lijun Zuo, Shaoqiang Wang, Minglei Wang, Xiaoqing Wang, Bojie Yan
Summary: Maximizing resource use efficiency is a key strategy for developing an environment-friendly agricultural system. This study proposes a comprehensive assessment framework to estimate resource use efficiency and its environmental impacts in a rice-production system. The study compares the results with both domestic and global excellent levels and provides insights for improvement in resource use efficiency and environmental impacts mitigation.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Multidisciplinary Sciences
Mojgan Radmanesh, Seyed Hamid Ahmadi, Ali Reza Sepaskhah
Summary: The SIRMOD and WinSRFR models were used to model and assess the irrigation performance under different irrigation strategies. The results showed that both models had excellent accuracy in simulating advance-recession times, infiltrated water depth, and runoff volume. It was found that surge irrigation improved irrigation management performance and irrigation method performance compared to continuous irrigation. Longer furrow lengths increased irrigation efficiency and deep percolation, while increasing the stream size decreased irrigation efficiency and deep percolation. The study demonstrated that these models are reliable tools for evaluating furrow irrigation strategies and can be used to improve water management in arid and semi-arid areas.
SCIENTIFIC REPORTS
(2023)
Article
Agronomy
Ana Cristina Garcia-Vasquez, Esmaiil Mokari, Zohrab Samani, Alexander Fernald
Summary: The objective of this study is to calculate real-time pecan water use and improve irrigation efficiency using UAV thermal imaging when the canopy cover is variable. The proposed methodology successfully calculated ETa and on-farm irrigation efficiency in the area.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Plant Sciences
Wael M. Semida, Abdelsattar Abdelkhalik, Gamal F. Mohamed, Taia A. Abd El-Mageed, Shimaa A. Abd El-Mageed, Mostafa M. Rady, Esmat F. Ali
Summary: The use of ZnO NP as a novel fertilization strategy has been shown to alleviate drought stress effects on eggplant, improving fruit yield and water productivity. By applying ZnO NP, significant increases in relative water content and membrane stability index were observed, along with enhanced anatomical structures and photosynthetic efficiency.
Article
Agronomy
Harjeet Singh Brar, Pritpal Singh
Summary: The establishment of growth stage specific irrigation scheduling is considered crucial for enhancing cotton productivity in north-western India. This study found that a deeper pre-sowing irrigation depth of 120mm significantly increased seed cotton yield and water productivity compared to a depth of 75mm. Cotton sown on April 30th showed improved phenological development and higher yields. For the 75mm pre-sowing irrigation treatment, the optimal post-sowing first irrigation period was between 21-35 days, while for the 120mm treatment, it was between 28-42 days.
AGRICULTURAL WATER MANAGEMENT
(2022)
