Recent Advances and Innovations in Drip Irrigation Systems

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

Deadline for manuscript submissions: 25 July 2024 | Viewed by 2027

Special Issue Editors


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Guest Editor
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
Interests: irrigation engineering; drip irrigation; utilization of low-quality irrigation water; soil and water conservation engineering
College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
Interests: drip irrigation; fertigation; microbiology; fouling; water quality; crop yield and quality; wastewater reuse; environmental risk; emitter clogging

Special Issue Information

Dear Colleagues,

One of the greatest current challenges to the development of sustainable agriculture is in meeting the food needs of a global growing population while preserving minimum impacts on water shortage, land and environmental degradation. Sustainable agricultural practices using cleaner technologies, such as high-efficient irrigation methods and precisely controlled fertigation, benefit both crop production and environment protection. Moreover, water scarcity has become key obstacle threatening world food security, and sustainable social development around the world. Consequently, the shortages of water resources have accentuated our reliance on low-quality irrigation waters (brackish water, saline water, reclaimed water), which can be effectively utilized to address the irrigation water demands. Drip irrigation system, due to their characteristics of precise water distribution and prevention of aerosol release to plants and the environment, are highly recommended for low-quality water irrigation. Previous research results suggested drip irrigation also resulted in higher crop yield and irrigation water-use efficiency when compared to traditional irrigation methods. However, the presence of huge amounts of scaling ions (Ca2+, Mg2+, HCO3− , SO42− etc.), colloidal particles and natural organic matter in low-quality irrigation waters leads to multi-factor failure in drip irrigation systems. In addition, most synthetic fertilizers are incompatible in low-quality irrigation waters, which will further trigger the risk of failure of the drip irrigation system.

This Special Issue of Water intends to collect some of the latest research advancement and innovations in drip irrigation systems for effective management and sustainable utilization of low-quality irrigation waters in drip irrigation systems in order to alleviate the contradiction between supply and demand of agricultural water resources, ensure agricultural soil protection, crop yield and quality, and enhance the farmers’ enthusiasm for drip irrigation technology.

Dr. Tahir Muhammad
Dr. Yang Xiao
Guest Editors

Manuscript Submission Information

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Keywords

  • drip irrigation system
  • efficient utilization of low-quality irrigation water
  • integrated applications of irrigation water, fertilizer and oxygation
  • filter and emitters multifactorial failure
  • clogging intelligent control and system performance improvement

Published Papers (1 paper)

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Research

12 pages, 1041 KiB  
Article
Effects of Different Nitrogen Allocation Ratios and Period on Cotton Yield and Nitrogen Utilization
by Yujie Ren, Zeqiang Sun, Xinhui Hu, Quanru Liu, Qinqing Xu, Dulin Qin, Xuejun Wang, Shenglin Liu, Changjian Ma and Xuewen Wei
Water 2023, 15(16), 3011; https://doi.org/10.3390/w15163011 - 21 Aug 2023
Viewed by 1350
Abstract
Choosing the proper fertilizer regime for a crop in a given location remains challenging to increase yield, profitability, environmental growth protection, and sustainability. However, the nutrient demand characteristics of cotton in the North China Plain are different at various growth stages. Therefore, we [...] Read more.
Choosing the proper fertilizer regime for a crop in a given location remains challenging to increase yield, profitability, environmental growth protection, and sustainability. However, the nutrient demand characteristics of cotton in the North China Plain are different at various growth stages. Therefore, we choose the local superior cotton variety (Lumian 532) with high yield as the material, in the present study, we assessed the cotton yield, biomass accumulation and distribution, nitrogen absorption and utilization efficiency, and other parameters by setting four nitrogen allocation ratios (3:5:2, 0:10:0, 3:7:0, and 0:7:3) when the nitrogen application rates were 0, 150, 220, and 300 kg hm−2. The results showed that when the nitrogen application rate was 300 kg hm−2, the growth index, biomass, nitrogen content, and yield of Lumian 532 were the highest, while the nitrogen partial productivity (12.2 and 12.8) was the lowest. When the nitrogen application rate was 220 kg hm−2 and the nitrogen allocation ratio was 3:5:2, the agronomic nitrogen use efficiency (3.2 and 3.5) and nitrogen physiological (24.8 and 25.0) was achieved. When the nitrogen application rate was 150 kg hm−2, the nitrogen partial productivity (20.6 and 20.9) was the highest. In conclusion, the biomass accumulation and distribution, nitrogen use efficiency, yield, and yield composition of Lumian 532 could be effectively regulated by appropriate nitrogen application rate and nitrogen allocation ratio. Therefore, to optimize the yield and improve the nitrogen use efficiency, the optimal nitrogen application rate of Lumian 532 was 220 kg hm−2, and the optimal nitrogen allocation ratio was 3:5:2 in the North China Plain. The results provided practical basis for nutrient demand, cotton yield and ecological protection in different growth stages of cotton in North China Plain. Full article
(This article belongs to the Special Issue Recent Advances and Innovations in Drip Irrigation Systems)
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