Improving border irrigation performance with predesigned varied-discharge

Liu, Kaihua; Jiao, Xiyun; Guo, Weihua; An, Yunhao; Salahou, Mohamed Khaled

doi:10.1371/journal.pone.0232751

Cited by 11 publications

(5 citation statements)

References 33 publications

(47 reference statements)

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“…This confirms that irrigation efficiency improvements could be an essential first step towards more sustainable agriculture in the region (Liu et al, 2019). For example, clear guidelines could be issued on cut‐off times and inflow control, border size and slope rationalization, and land levelling (Liu, Jiao, et al, 2020). However, our study also shows that the high inflow could result in fertilizer flushing to the bottom end of the field, where it was lost via deep percolation.…”

Section: Discussionmentioning

confidence: 99%

Assessment of farmers' water and fertilizer practices and perceptions in the North China Plain

Sun

Ritzema

Huang

et al. 2022

Irrigation and Drainage

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Irrigation and fertilization are vital to increasing crop yield, but their application often exceeds crop requirements. Excessive fertilization under inefficient irrigation depletes the already scarce water resources while contributing to water pollution. To overcome these problems, the introduction of fertigation in combination with modern irrigation technologies has been promoted in the North China Plain (NCP), but farmers have been reluctant to adopt such technologies. To better understand the current situation and farmers' perceptions, we performed a case study in the People's Victory Canal Irrigation District (PVCID) of NCP. A field survey was carried out using a participatory approach, and field monitoring was conducted on a representative farm. We found that

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Section: Discussionmentioning

confidence: 99%

Assessment of farmers' water and fertilizer practices and perceptions in the North China Plain

Sun

Ritzema

Huang

et al. 2022

Irrigation and Drainage

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“…Referring to existing research results [25,35,36], the deviation values were determined as +10%, +20%, −10%, and −20%. Given the correlation between the infiltration coefficient and the infiltration index, the deviation of the former can be used to represent the deviation of the infiltration parameters [37]. Table 3 lists the specific natural parameters of each simulation scenario.…”

Section: Sensitivity Analysis and Field Experimentsmentioning

confidence: 99%

Improving Irrigation Performance by Using Adaptive Border Irrigation System

Liu,

Jiao,

Guo

et al. 2023

Agronomy

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Shortages of water resources and labor make it urgent to improve irrigation efficiency and automation. To respond to this need, this study demonstrates the development of an adaptive border irrigation system. The inflow is adjusted based on the functional relationship between the advance time deviation and the optimal adjustment inflow rate, thereby avoiding the real-time calculation of infiltration parameters required by traditional real-time control irrigation systems. During the irrigation process, the inflow rate is automatically adjusted based only on the advance time deviation of the observation points. The proposed system greatly simplifies the calculation and reduces the requirements for field computing equipment compared with traditional real-time control irrigation systems. Field validation experiments show that the proposed system provides high-quality irrigation by improving the application efficiency, distribution uniformity, and comprehensive irrigation performance by 11.3%, 10.7%, and 11.0%, respectively. A sensitivity analysis indicates that the proposed system maintains a satisfactory irrigation performance for all scenarios of variations in natural parameters, flow rates, and border length. Due to its satisfactory irrigation performance, robustness, facile operation, and economical merit compared with traditional real-time control irrigation systems, the proposed system has the potential to be widely applied.

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“…Data from the International Commission on Irrigation and Drainage, published on the Food and Agriculture Organization's Aquastat website, show that surface irrigation is used on 97% of the irrigated area in India, 94% in China, 44% in the United States, and 100% in Pakistan (i.e., the 58% of the world's total irrigated area). In general, among the different types of surface irrigation, border irrigation is the most common method for watering row crops worldwide (Fadul et al 2020), especially in Australia (Kohec and Langat 2018), northern China (Liu et al 2020), and southern Europe (Masseroni et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Water Savings Potential of Optimized Surface Irrigation Management in Northern Italy

Masseroni

Gangi

Ghilardelli

et al. 2023

Preprint

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The effects of climate change on water availability affect the performance of surface irrigation, which is the oldest and most common method of water application to row crops worldwide. A paradigm shift towards strategies aimed at increasing flexibility of irrigation scheduling and improving the design and management of field layouts and irrigation practices should be explored to promote water savings at the farm scale. In this study, we investigate how adopting a more flexible irrigation scheduling and optimizing irrigation management variables and field layout it is possible to increase the efficiency of border irrigation and thus achieve water savings and improve quality of crop production. The analysis of the actual performance of border irrigation was carried out on two maize fields located in the Padana Plain (Northern Italy) in two years characterized by different rainfall patterns (i.e. 2021 and 2022). Based on this information, continuous monitoring of soil moisture status combined with the AquaCrop-OS agro-hydrological model was used to manage flexible irrigation scheduling over the experimental fields. While the optimization of irrigation management (flowrate per unit width and cutoff time) and field geometries (border width and slope) was studied using WinSRFR 5.1 USDA software, which was properly calibrated by measures of waterfront advance and recession. The results show that with flexible irrigation scheduling and proper irrigation management and field layout, significant water savings can be achieved. Specifically, in the case study, seasonal water savings of about 10% were obtained just by scheduling irrigation based on actual crop water needs in a very dry agricultural season, while water savings reached up to 60% in a wetter season. On average, an additional 7% of water savings was achieved over the agricultural season when the irrigation duration was correctly applied to each border of the experimental plots, while approximately 20% of water was saved when the border width was correctly designed based on inflow availability. These results provide useful information for improving the management of border irrigation in practice, both under current conditions and in the face of increasing freshwater scarcity in the future.

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Improving border irrigation performance with predesigned varied-discharge

Cited by 11 publications

References 33 publications

Assessment of farmers' water and fertilizer practices and perceptions in the North China Plain

Assessment of farmers' water and fertilizer practices and perceptions in the North China Plain

Improving Irrigation Performance by Using Adaptive Border Irrigation System

Assessing the Water Savings Potential of Optimized Surface Irrigation Management in Northern Italy

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