Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems
Enhancing the anti-clogging efficacy of emitters within drip irrigation systems through dynamic pressure (DP) is gaining attention. However, DP may affect the irrigation uniformity and fertigation uniformity. The laboratory experiment on irrigation and fertigation uniformity was conducted using the...
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Elsevier
2025-05-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377425001325 |
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| author | Shaobo Xing Kexin Du Ningning Liu Miao Li Wenhao Li Jihong Zhang Feihu Yin Jinzhu Zhang Zhenhua Wang |
| author_facet | Shaobo Xing Kexin Du Ningning Liu Miao Li Wenhao Li Jihong Zhang Feihu Yin Jinzhu Zhang Zhenhua Wang |
| author_sort | Shaobo Xing |
| collection | DOAJ |
| description | Enhancing the anti-clogging efficacy of emitters within drip irrigation systems through dynamic pressure (DP) is gaining attention. However, DP may affect the irrigation uniformity and fertigation uniformity. The laboratory experiment on irrigation and fertigation uniformity was conducted using the Non-axisymmetric Venturi Injector and urea. The amplitude, cycle time, and waveform of DP were utilized to establish pressure schemes and compared with the constant pressure (CP) of 100 kPa, to evaluate the irrigation and fertigation uniformity of three types of drip tapes. Results indicate that the type of drip tapes has a very significant effect on irrigation uniformity (p < 0.01) and significantly affects the fertilizer application rate uniformity (p < 0.05). The amplitude, cycle time, and waveform of DP don't significantly affect the irrigation uniformity. The irrigation emission uniformity under DP relative to CP exhibited variations from −3.118 % to 1.055 %. Only 4/27 of DP schemes failed to achieve a WEU that classified as 'Excellent', but were still classified as 'Good' when CP was rated as 'Excellent'. DP has a slight effect on the flow rate. The cycle time, and waveform of DP significantly affect the uniformity of fertilization concentration and application rate (p < 0.05). DP enhanced the concentration emission uniformity by 49.885 % and the fertilizer application rate emission uniformity of by 51.629 %, albeit requiring 4.612 % more fertigation time. DP can enable drip systems to maintain good irrigation uniformity while achieving superior fertigation uniformity. To achieve a more uniform irrigation and fertilization, utilizing appropriate parameter combinations of DP tailored to different drip tape types is recommended. |
| format | Article |
| id | doaj-art-678200eeb413409281d176d5913fc9aa |
| institution | OA Journals |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-678200eeb413409281d176d5913fc9aa2025-08-20T02:13:11ZengElsevierAgricultural Water Management1873-22832025-05-0131210941810.1016/j.agwat.2025.109418Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systemsShaobo Xing0Kexin Du1Ningning Liu2Miao Li3Wenhao Li4Jihong Zhang5Feihu Yin6Jinzhu Zhang7Zhenhua Wang8College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR ChinaXinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, ChinaCollege of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR China; Corresponding authors at: College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China.College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; Key Laboratory of Modern Water-Saving Irrigation of Xinjiang Production & Construction Group, Shihezi University, Shihezi, Xinjiang 832000, China; Technology Innovation Center for Agricultural Water and Fertilizer Efficiency Equipment of Xinjiang Production & Construction Corps, PR China; Key Laboratory of Northwest Oasis Water-Saving Agriculture, Ministry of Agriculture and Rural Affairs, PR China; Corresponding authors at: College of Water Conservancy & Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China.Enhancing the anti-clogging efficacy of emitters within drip irrigation systems through dynamic pressure (DP) is gaining attention. However, DP may affect the irrigation uniformity and fertigation uniformity. The laboratory experiment on irrigation and fertigation uniformity was conducted using the Non-axisymmetric Venturi Injector and urea. The amplitude, cycle time, and waveform of DP were utilized to establish pressure schemes and compared with the constant pressure (CP) of 100 kPa, to evaluate the irrigation and fertigation uniformity of three types of drip tapes. Results indicate that the type of drip tapes has a very significant effect on irrigation uniformity (p < 0.01) and significantly affects the fertilizer application rate uniformity (p < 0.05). The amplitude, cycle time, and waveform of DP don't significantly affect the irrigation uniformity. The irrigation emission uniformity under DP relative to CP exhibited variations from −3.118 % to 1.055 %. Only 4/27 of DP schemes failed to achieve a WEU that classified as 'Excellent', but were still classified as 'Good' when CP was rated as 'Excellent'. DP has a slight effect on the flow rate. The cycle time, and waveform of DP significantly affect the uniformity of fertilization concentration and application rate (p < 0.05). DP enhanced the concentration emission uniformity by 49.885 % and the fertilizer application rate emission uniformity of by 51.629 %, albeit requiring 4.612 % more fertigation time. DP can enable drip systems to maintain good irrigation uniformity while achieving superior fertigation uniformity. To achieve a more uniform irrigation and fertilization, utilizing appropriate parameter combinations of DP tailored to different drip tape types is recommended.http://www.sciencedirect.com/science/article/pii/S0378377425001325Dynamic pressureDrip irrigationDrip tape typeIrrigation uniformityFertigation uniformity |
| spellingShingle | Shaobo Xing Kexin Du Ningning Liu Miao Li Wenhao Li Jihong Zhang Feihu Yin Jinzhu Zhang Zhenhua Wang Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems Agricultural Water Management Dynamic pressure Drip irrigation Drip tape type Irrigation uniformity Fertigation uniformity |
| title | Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| title_full | Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| title_fullStr | Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| title_full_unstemmed | Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| title_short | Effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| title_sort | effect of dynamic pressure and emitter type on irrigation and fertigation uniformity of drip irrigation systems |
| topic | Dynamic pressure Drip irrigation Drip tape type Irrigation uniformity Fertigation uniformity |
| url | http://www.sciencedirect.com/science/article/pii/S0378377425001325 |
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