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Enhancing rice yield, quality, and resource utilisation with slow-release fertiliser in alternate wetting and drying irrigation

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  • Keji Hua

    (Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei, P.R. China
    College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei, P.R. China)

  • Peng Yang

    (Zhangshu Agricultural and Rural Bureau, Zhangshu, Jiangxi, P.R. China)

  • Jieyu Zhou

    (Danjiangkou Hydropower Plant, Hanjiang Water Resources and Hydropower Group Co., Ltd., Danjiangkou, Hubei, P.R. China)

  • Wei Liao

    (Guangdong Zhonghao Survey and Design Consulting Co., Ltd., Guangzhou, Guangdong, P.R. China)

  • Jun He

    (Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei, P.R. China
    College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei, P.R. China)

  • Junlin Zheng

    (College of Water Conservancy, Shenyang Agricultural University, Shenyang, Liaoning, P.R. China)

  • Chi Tang

    (Hubei Zhanghe Hydraulic Project Administration Bureau, Jingmen, Hubei, P.R. China)

  • Yuqin Li

    (Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei, P.R. China
    College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei, P.R. China)

  • Baolong Zhang

    (Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei, P.R. China
    College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei, P.R. China)

Abstract

Partial slow-release fertiliser substitution for urea combined with water-saving irrigation may synergistically improve rice yield, quality, water, and nitrogen (N) utilisation. A field experiment to evaluate different combinations of irrigation regimes: alternate wetting and drying irrigation (AWD) and flooding irrigation (FI), and N strategies: N0 (no N fertiliser); N1 (100% conventional fertiliser); N2 (100% SCF - sulphur-coated fertiliser); N3 (70% SCF + 30% urea), and N4 (50% SCF + 50% urea) on efficient rice production. Results indicated that higher substitution rates of SCF (N2 and N3) increased total N and ammonia N in surface water, leachate, and soil while reducing nitrate N relative to N1. The N3 strategy showed the highest yields, dry matter, total N uptake, and water N utilisation due to a nutrient release pattern that matched rice growth requirements. AWD yielded 5% lower than FI, except for the N3 strategy, but protein content increased by 12%, and amylose content dropped by 17%. The structural equation model analysis suggested that SCF positively impacted yield by influencing surface water total N and soil total N. Our findings indicate that implementing AWD alongside a 70% SCF basal fertiliser and 30% urea topdressing can optimise rice yield and quality while effectively managing water and fertiliser resources in the middle-lower Yangtze River Basin.

Suggested Citation

  • Keji Hua & Peng Yang & Jieyu Zhou & Wei Liao & Jun He & Junlin Zheng & Chi Tang & Yuqin Li & Baolong Zhang, 2024. "Enhancing rice yield, quality, and resource utilisation with slow-release fertiliser in alternate wetting and drying irrigation," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 70(5), pages 253-262.
    • Handle: RePEc:caa:jnlpse:v:70:y:2024:i:5:id:450-2023-pse
    DOI: 10.17221/450/2023-PSE
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    References listed on IDEAS

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    1. Hua, Keji & He, Jun & Liao, Bin & He, Tianzhong & Yang, Peng & Zhang, Lei, 2023. "Multi-objective decision-making for efficient utilization of water and fertilizer in paddy fields: A case study in Southern China," Agricultural Water Management, Elsevier, vol. 289(C).
    2. Ishfaq, Muhammad & Akbar, Nadeem & Zulfiqar, Usman & Ali, Nauman & Ahmad, Mumtaz & Anjum, Shakeel Ahmad & Farooq, Muhammad, 2021. "Influence of water management techniques on milling recovery, grain quality and mercury uptake in different rice production systems," Agricultural Water Management, Elsevier, vol. 243(C).
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