氮素养分形态配合对水稻生长发育和品质影响的整合分析
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(1.海南大学三亚南繁研究院,海南 三亚 572000;2.海南大学热带作物学院,海南 海口 570228; 3.中国农业科学院作物科学研究所,北京 100081)

作者简介:

李精华(1995-),硕士研究生,研究方向为植物营养。 E-mail:ljh18708926530@163.com。

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基金项目:海南省院士创新平台科研专项基金项目(YSPTZX 202019);海南省重大科技计划(ZDKJ2021008);海南省市厅级 项目[农减项目 -2021-1(2)];海南省张福锁院士创新平台资金 项目;海南省院士创新平台科研专项(SQ2020PTZ0004)。


Integrative analysis of effects of nitrogen nutrient form coordination on rice growth and quality
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Affiliation:

(1.Sanya Nanfan Research Institute of Hainan University,Sanya Hainan 572000;2.College of Tropical Crops,Hainan University, Haikou Hainan 570228;3.Institute of Crops Seiences,Chinese Academy of Agricultural Sciences,Beijing 100081)

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    摘要:

    作物对氮素形态有不同程度的偏好,一直以来研究者认为水稻是典型的喜铵作物,也有研究指出增加硝 态氮能促进水稻根系的发育和产量的提升,但尚未明确协同多指标增效的最适铵硝配比。有机无机配合施用也是 有效增加稻米品质的重要营养调控手段,但有机养分占比过高会降低水稻产量。整合现有的研究结果,定量分析 铵硝态氮的配合和有机无机氮的配合对水稻生长发育及产量、品质的影响,以明确水稻最佳铵硝配比和有机替代 方案。采用 Meta 分析方法,收集了 2000—2021 年间发表的 48 篇文章,将养分形态配比分类,研究不同分类条 件下水稻生长发育、产量和品质的差异。与纯铵态氮供应相比,适宜配比的铵硝混合营养显著改善水稻干物质 累积、生长发育和光合特性,其中最佳配比为 75∶25,可分别增加水稻地上部、地下部干物质量和总干物质量 36.2%、19.5% 和 26.0%,分别增加生长发育指标叶面积、分蘖数、根长、根体积、根表面积、氮素积累量 17.9%、 28.8%、209.5%、60.5%、139.5%、30.6%,分别显著提高硝酸还原酶活性、净光合速率、叶绿素 56.5%、16.3%、 21.9%。但当硝态氮比例增加到 50% 时,上述指标无法得到显著提升甚至下降。与纯无机氮供应相比,<40% 的有 机氮替代下水稻产量、整精米率、直链淀粉含量分别提升 8.9%、4.5%、1.4%,稻米垩白度和蛋白质含量分别下降 19.7%、0.7%,但有机替代比例超过 40% 则无显著改善效果。合理铵硝配比和有机肥替代比例可进一步实现水稻 增产、提质、增效。

    Abstract:

    Crops have different degrees of preference for nitrogen forms. Researchers have always believed that rice is a typical ammonium loving crop,and some studies have pointed out that increasing nitrate nitrogen can promote the development of rice root system and the improvement of rice yield,but the optimal ammonium and nitrate ratio for synergistic multi-index synergistic efficiency has not been clarified. Organic and inorganic combined application is also an important nutrient control method to increase rice quality effectively,but the high proportion of organic nutrients will reduce rice yield. The aim of this study was to integrate the existing research results and quantitatively analyze the effects of the combination of ammonium nitrate nitrogen and organic and inorganic nitrogen on the growth and development,yield and quality of rice,so as to determine the optimal ammonium to nitrate ratio and organic alternative for rice. A total of 48 articles published from 2000 to 2021 were collected by Meta-analysis,and the nutrient form ratio was classified to study the differences in rice growth and development,yield and quality under different classification conditions. Compared with pure ammonium nitrogen supply, ammonium and nitrate mixed nutrition with appropriate ratio significantly improved dry matter accumulation,growth and photosynthetic characteristics of rice. The optimal ratio of 75∶25 increased dry matter weight of rice shoot and underground root,total dry matter weight of rice by 36.2%,19.5% and 26.0%,respectively. Leaf area,number of tillers,root length, root volume,root surface area and nitrogen accumulation were increased by 17.9%,28.8%,209.5%,60.5%,139.5% and 30.6%,respectively. The nitrate reductase activity,net photosynthetic rate and chlorophyll were significantly increased by 56.5%,16.3% and 21.9%,respectively. However,when the ratio of nitrate nitrogen increased to 50%,the above indexes were not significantly improved or even decreased. Compared with pure inorganic nitrogen supply,the rice yield,whole milled rice rate and amylose content increased by 8.9%,4.5% and 1.4%,respectively,while the chalkiness and protein content of rice decreased by 19.7% and 0.7%,respectively,under organic nitrogen replacement of <40%,but there was no significant improvement effect when organic nitrogen replacement ratio exceeded 40%. Reasonable ratio of ammonium and nitrate and organic fertilizer replacement ratio can further achieve rice yield increase,quality improvement and efficiency improvement.

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李精华,陈嘉涛,李冉,李伟芳,樊帆,阮云泽,李婷玉.氮素养分形态配合对水稻生长发育和品质影响的整合分析[J].中国土壤与肥料,2023,(10):193-200.

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  • 收稿日期:2022-09-13
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  • 录用日期:2022-10-02
  • 在线发布日期: 2024-01-16
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