Journal of Integrative Agriculture ›› 2025, Vol. 24 ›› Issue (6): 2123-2137.DOI: 10.1016/j.jia.2023.12.037

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华北平原不同灌溉和氮肥分施模式对滴灌冬小麦花后粒重变化、产量和品质的耦合效应

  

  • 收稿日期:2023-08-24 修回日期:2024-01-03 接受日期:2023-11-17 出版日期:2025-06-20 发布日期:2025-05-12

The coupled effects of various irrigation schedules and split nitrogen fertilization modes on post-anthesis grain weight variation, yield, and grain quality of drip-irrigated winter wheat (Triticum aestivum L.) in the North China Plain

Abdoul Kader Mounkaila Hamani1, 2*, Sunusi Amin Abubakar3*, Yuanyuan Fu4, Djifa Fidele Kpalari2, Guangshuai Wang2, Aiwang Duan2, Yang Gao2#, Xiaotang Ju1#   

  1. 1 School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China

    2 Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture and Rural Affairs/Institute of Farmland Irrigation, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China

    3 Department of Agricultural and Bioresource Engineering, Abubakar Tafawa Balewa University, Bauchi 740272, Nigeria

    4 College of Agronomy, Tarim University, Alar 843300, China

  • Received:2023-08-24 Revised:2024-01-03 Accepted:2023-11-17 Online:2025-06-20 Published:2025-05-12
  • About author:#Correspondence Yang Gao, E-mail: gaoyang@caas.cn; Xiaotang Ju, E-mail: juxt@cau.edu.cn * These authors contributed equally to this study.
  • Supported by:
    This work was supported by the China Agriculture Research System of MOF and MARA (CARS-03-19), the National Natural Science Foundation of China (51879267), and the Agricultural Science and Technology Innovation Program (ASTIP), Chinese Academy of Agricultural Sciences.

摘要:

灌溉方式和施氮方式对小麦的生理、生长发育有着复杂的影响,进而影响小麦的产量和品质。然而,滴灌冬小麦的最优水氮组合仍不清楚。为评价不同氮施肥和水分制度对小麦开花后粒重变化、产量、籽粒NPK含量和籽粒品质的影响,开展了为期两年的田间试验。试验设置2个因素,分别是2个灌溉定额:I45(当ETa-P达到45mm时灌溉)和I30(当ETa-P达到30mm时灌溉);六个施氮量:N0-100(拔节孕穗期施肥100%)、N25-75(播种时施肥25%,拔节孕穗期施75%)、N50-50(播种时施肥50%,拔节孕穗期施肥50%)、N75-25(播种时施肥75%,拔节孕穗期施肥25%)、N100-0(播种时施肥100%)和SRF100(播种后100%缓释肥料)。试验结果表明,不同灌溉方式和施肥式对花后粒重变化、产量、籽粒NPK含量和籽粒品质有显著影响。两个小麦季中,不论灌溉方式如何, N50-50处理对冬小麦花后粒重变化的影响大于N100-0N0-100处理。在2020-2021年和2021-2022年,I45N50-50处理产量最高,分别是9.72和9.94 t ha−1。两季中,I45SRF100处理的籽粒粗蛋白含量均较高。在2021-2021年,与I45N0-100和I30N0-100处理相比,I45N100-0显著提高了7.30%和8.23% (P<0.05) 的粮食总淀粉含量。在2021-2022季节,与I45N0-100、I30N0-100和I30N25-75处理相比,I45N100-0显著提高了7.77%7.62%7.88% (P<0.05)。并且通过主成分分析发现(PCL),N50-50分氮灌溉模式可能是农民在冬小麦生产期间的最优选择。

Abstract:

Irrigation methods and nitrogen (N) fertilization modes have complicated impacts on wheat physiology, growth, and development, leading to the regulation of wheat grain yield and quality.  However, the optimal water-N combination for drip-irrigated winter wheat remains unclear.  A two-year field study was conducted to evaluate the influences of various N-fertigation and water regimes on wheat post-anthesis grain weight variation, yield, grain NPK content, and grain quality.  The two irrigation quotas were I45 (irrigation when crop evapotranspiration reduced by effective rainfall (ETa-P) reaches 45 mm) and I30 (irrigation when ETa-P reaches 30 mm), while the six N application rates were N0–100 (100% at jointing/booting), N25–75 (25% at sowing and 75% at jointing/booting), N50–50 (50% at sowing and 50% at jointing/booting), N75–25 (75% at sowing and 25% at jointing/booting), N100–0 (100% at sowing), and SRF100 (100% of slow-release fertilizer at sowing).  The experimental findings showed that post-anthesis grain weight variation, grain yield, grain NPK content, and grain quality were all markedly influenced by the various irrigation schedules and N-fertilization modes.  The N50–50 treatment was more beneficial for winter wheat post-anthesis grain weight variation than the N100–0 and N0–100 treatments under the two irrigation quotas and during the two seasons.  The highest grain yields of 9.72 and 9.94 (t ha−1) were obtained with the I45N50–50 treatment in 2020–2021 and 2021–2022, respectively.  The grain crude protein was higher in the I45SRF100 treatment during the two seasons.  The I45N100–0 combination significantly (P<0.05) enhanced the content of grain total starch by 7.30 and 8.23% compared with the I45N0–100 and I30N0–100 treatments, respectively, during the 2021–2021 season.  The I45N100–0 treatment significantly (P<0.05) enhanced the content of grain total starch concentration by 7.77, 7.62 and 7.88% compared with the I45N0–100, I30N0–100, and I30N25–75 treatments, respectively, in the 2021–2022 season.  The principal component analysis (PCA) indicated that the N50–50 split N-fertigation mode could be the optimal choice for farmers during winter wheat production via drip irrigation.  

Key words: winter wheat ,  drip fertigation ,  split N application ,  post-anthesis grain weight variation ,  grain quality