华北农学报 ›› 2026, Vol. 41 ›› Issue (1): 111-121. doi: 10.7668/hbnxb.20195954

所属专题: 水稻 土壤肥料 热点论文 栽培生理

• 资源环境·植物保护 • 上一篇    下一篇

长期施肥对双季晚稻产量形成和生理调控的影响

胡志华1,2, 吴建富2, 胡丹丹1, 宋惠洁1, 吴艳1, 柳开楼1, 程坤1, 李大明1, 徐小林1   

  1. 1 江西省红壤及种质资源研究所,江西 南昌 330046
    2 江西农业大学 国土资源与环境学院,江西 南昌 330045
  • 收稿日期:2025-05-26 出版日期:2026-02-28
  • 通讯作者:
    徐小林(1982—),男,江西乐平人,副研究员,硕士,主要从事土壤改良与培肥研究。
  • 作者简介:

    胡志华(1990—),男,江西贵溪人,副研究员,博士,主要从事植物营养与生态研究。

  • 基金资助:
    国家自然科学基金项目(42367051); 国家自然科学基金项目(42207398)

Effects of Long-term Fertilization on Yield Formation and Physiological Regulation of Double Cropping Late Rice

HU Zhihua1,2, WU Jianfu2, HU Dandan1, SONG Huijie1, WU Yan1, LIU Kailou1, CHENG Kun1, LI Daming1, XU Xiaolin1   

  1. 1 Jiangxi Institute of Red Soil and Germplasm Resources,Nanchang 330046,China
    2 College of Land Resources and Environment,Jiangxi Agricultrual University,Nanchang 330045,China
  • Received:2025-05-26 Published:2026-02-28

摘要:

为探明长期施肥对双季晚稻产量形成的影响及其生理调控机制,基于进贤红壤稻田化肥长期定位试验(1981年设),选取不施肥(CK)、单施氮磷钾肥(NPK)、两倍氮磷钾肥(HNPK)、有机无机配施(NPKM)4个典型处理,比较了长期施肥后第42年双季晚稻产量、干物质积累、叶绿素动态特征、齐穗期和灌浆期叶片基因表达差异。结果表明,长期施肥下晚稻产量表现为NPKM>HNPK>NPK>CK,其中HNPK和NPKM处理显著高于NPK处理,增幅分别为29.63%,57.18%。与NPK处理相比,NPKM和HNPK处理显著改善晚稻产量构成,有效穗、穗粒数和着粒密度分别增加了16.98%~46.42%,8.68%~15.26%,3.69%~7.37%。在干物质积累方面,与NPK相比,NPKM和HNPK均显著提高了晚稻各时期干物质质量,同时促进了齐穗期至成熟期茎叶干物质向穗的转运。NPKM和HNPK处理各时期叶绿素含量均显著高于CK和NPK处理,其中NPKM处理延缓了灌浆期至成熟期叶绿素的衰减;相关分析表明,长期施肥下晚稻产量与分蘖期至齐穗期干物质积累量(△DM1)和灌浆期至成熟期干物质积累量(△DM3)呈极显著正相关,与灌浆期至成熟期叶片叶绿素减少量(△S3)呈极显著负相关。叶片转录组分析结果表明,长期施肥显著影响晚稻齐穗期、灌浆期叶片基因表达,差异表达基因主要富集于光合作用、碳代谢、氮代谢、信号转导及逆境相关的代谢途径。综上所述,长期施肥调控双季晚稻基因表达,有机无机配施改善了产量构成,促进了早期干物质积累,增强了灌浆期至成熟期茎叶干物质向穗的转运,同时,提高了晚稻各时期叶片叶绿素含量,并延缓了灌浆期后叶片的衰老,对水稻增产起到强源(提高光合生产力)、扩库(增加干物质储存容量)和畅流(促进同化物转运)的作用。

关键词: 双季晚稻, 长期施肥, 产量, 干物质积累, 叶绿素, 差异表达基因

Abstract:

To investigate the effects of long-term fertilization on yield formation and its physiological regulation mechanisms in double cropping late rice,it utilized a long-term fertilization experiment(initiated in 1981)in red paddy soils of Jinxian.Four typical treatments were selected:no fertilization(CK),single application of nitrogen-phosphorus-potassium(NPK),double dose of NPK(HNPK),and combined organic-inorganic fertilization(NPKM).Comparisons were made on double cropping late rice yield,dry matter accumulation,chlorophyll dynamics,and differential gene expression in leaves at fullheading and filling stages in the 42nd year of long-term fertilization.Results showed that long-term fertilization resulted in yields ranked as NPKM>HNPK>NPK>CK,with HNPK and NPKM treatments significantly surpassing NPK,showing increases of 29.63% and 57.18% respectively.Compared with NPK,both NPKM and HNPK significantly improved yield components:effective panicles,grains per panicle,and grain density increased by 16.98%—46.42%,8.68%—15.26%,3.69%—7.37%,respectively.Regarding dry matter accumulation,NPKM and HNPK significantly enhanced dry matter weight at all growth stages and promoted translocation of stem-leaf dry matter to panicles from filling to maturity.The contents of chlorophyll in NPKM and HNPK treatments were significantly higher than those in CK and NPK treatments at all stages,and NPKM delayed the decay of chlorophyll from filling stage to maturity stage.Correlation analysis revealed significant positive relationships between yield and dry matter accumulation from tillering to heading(△DM1)and filling to maturity(△DM3),while showed extremely negative correlation with chlorophyll reduction from grain filling to maturity(△S3).Transcriptome analysis demonstrated that long-term fertilization significantly affected gene expression in leaves during fullheading and filling stages,with differentially expressed genes primarily enriched in photosynthesis,carbon/nitrogen metabolism,signal transduction,and stress-related pathways.In conclusion,long-term fertilization regulates gene expression and combined organic-inorganic fertilization improved yield components,enhanced early-stage dry matter accumulation,promoted assimilate translocation from vegetative organs to panicles during grain filling,maintain higher chlorophyll levels,and delayed leaf senescence post-grain filling.This comprehensive mechanism achieves yield enhancement through strengthening source(enhancing photosynthetic capacity),expanding sink(increasing dry matter storage),and facilitating flow(promoting assimilate transport).

Key words: Double cropping late rice, Long-term fertilization, Yield, Dry matter accumulation, Chlorophyll, Differently expressed genes(DEGs)

中图分类号: 

引用本文

胡志华, 吴建富, 胡丹丹, 宋惠洁, 吴艳, 柳开楼, 程坤, 李大明, 徐小林. 长期施肥对双季晚稻产量形成和生理调控的影响[J]. 华北农学报, 2026, 41(1): 111-121. doi: 10.7668/hbnxb.20195954.

HU Zhihua, WU Jianfu, HU Dandan, SONG Huijie, WU Yan, LIU Kailou, CHENG Kun, LI Daming, XU Xiaolin. Effects of Long-term Fertilization on Yield Formation and Physiological Regulation of Double Cropping Late Rice[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(1): 111-121. doi: 10.7668/hbnxb.20195954.