华北农学报 ›› 2022, Vol. 37 ›› Issue (4): 182-189. doi: 10.7668/hbnxb.20193066

所属专题: 小麦 土壤肥料 热点文章

• 资源环境·植物保护 • 上一篇    下一篇

豫北潮土区轮耕模式对小麦光合特性、产量及土壤养分的影响

牛润芝, 朱长伟, 姜桂英 , 杨锦, 罗澜, 申凤敏, 刘芳, 刘世亮   

  1. 河南农业大学 资源与环境学院,河南 郑州 450002
  • 收稿日期:2022-03-26 出版日期:2022-08-28
  • 通讯作者: 姜桂英, 刘世亮
  • 作者简介:

    牛润芝(1998-),女,河南滑县人,在读硕士,主要从事土壤肥力培育与调控研究。

  • 基金资助:
    国家重点研发计划重点专项(2021YFD1700900); 国家自然科学基金(41401327); 河南省科技厅基金(192102110161); 河南省教育厅基金(20A210024)

Effects of Rotation Tillage Pattern on Wheat Photosynthetic Characteristics, Yield,and Soil Nutrients in Fluvo-aquic Soil in North Henan

NIU Runzhi, ZHU Changwei, JIANG Guiying , YANG Jin, LUO Lan, SHEN Fengmin, LIU Fang, LIU Shiliang   

  1. College of Resources and Environment,Henan Agricultural University,Zhengzhou 450002,China
  • Received:2022-03-26 Published:2022-08-28
  • Contact: JIANG Guiying, LIU Shiliang

摘要:

为探索豫北潮土地区适宜的耕作模式,在2016-2019年小麦季设置3 a一周期的5种耕作模式组合,即连续旋耕(RT-RT-RT)、深耕-旋耕-旋耕(DT-RT-RT)、深耕-旋耕-条旋耕(DT-RT-SRT)、深耕-条旋耕-条旋耕(DT-SRT-SRT)和深耕-条旋耕-旋耕(DT-SRT-RT),测定并分析不同耕作模式下小麦生育期光合特性、土壤速效养分含量及籽粒产量。结果表明,与RT-RT-RT相比,轮耕处理的小麦光合特性有所改善,净光合速率、气孔导度以DT-SRT-RT处理较佳,平均增幅分别为10.85%,7.83%;DT-SRT-RT叶绿素含量的增加随生育期的推进逐渐明显,在灌浆期较RT-RT-RT 显著提高16.52%;与RT-RT-RT相比,轮耕处理提高了0~50 cm土层土壤速效氮、磷、钾含量。此外,DT-SRT-RT小麦穗数、穗粒数、千粒质量和产量均高于RT-RT-RT,较RT-RT-RT增产14.64%。相关分析表明,小麦净光合速率与小麦产量呈正相关,在开花期达极显著水平;表层土壤硝态氮、铵态氮、有效磷和速效钾含量总体上均与小麦产量呈显著正相关。总的来说,在豫北潮土地区,实施轮耕可提高小麦生育期光合速率、土壤速效养分含量和产量及其构成因素,其中以DT-SRT-RT效果最佳。

关键词: 小麦, 轮耕, 光合特性, 产量, 土壤养分, 豫北潮土

Abstract:

To select the optimum tillage mode for the fluvo-aquic soil in North Henan,a three-year field experiment was carried out during 2016 to 2019. The experiment was designed with five combinations of three different tillage practices in wheat season as continuous rotary tillage(RT-RT-RT);deep tillage-rotary tillage-rotary tillage(DT-RT-RT);deep tillage-rotary tillage-strip rotary tillage(DT-RT-SRT);deep tillage-strip rotary tillage-strip rotary tillage(DT-SRT-SRT);deep tillage-strip tillage-rotary tillage(DT-SRT-RT). The photosynthetic indexes,soil available nutrients,and wheat yield were measured and analyzed under different treatments. The results showed that compared with RT-RT-RT,photosynthetic characteristics under different rotation tillage treatments improved. Compared with RT-RT-RT,the net photosynthetic rate,stomatal conductance under DT-SRT-RT increased by 10.85%,7.83%,respectively. The chlorophyll content increased gradually with the growth stage under DT-SRT-RT,and it was significantly higher than that under RT-RT-RT at the filling stage,with an increment of 16.52%. The content of available nitrogen,available phosphorus,and available potassium in the 0-50 cm soil layer increased under treatments with rotation tillage. Additionally,the spike number,grains per spike,1000-grain weight,and yield of wheat under DT-SRT-RT were higher than those under RT-RT-RT,therein,the yield under DT-SRT-RT was the highest with an increment of 14.64%. The correlation analysis showed that the net photosynthetic rate was positively correlated with wheat yield,which reached significant level at the flowering period. The contents of nitrate nitrogen,ammonium nitrogen,available phosphorus,and available potassium in surface soil were significantly positively correlated with wheat yield. Generally,for the fluvo-aquic soil area in North Henan,the photosynthetic characteristics of wheat,soil available nutrients content and the components of yield were improved by rotation tillage modes,and therein,the DT-SRT-RT was the optimum one.

Key words: Wheat, Rotation tillage, Photosynthetic characteristics, Yield, Soil nutrients, Fluvo-aquic soil in North Henan

引用本文

牛润芝, 朱长伟, 姜桂英, 杨锦, 罗澜, 申凤敏, 刘芳, 刘世亮. 豫北潮土区轮耕模式对小麦光合特性、产量及土壤养分的影响[J]. 华北农学报, 2022, 37(4): 182-189. doi: 10.7668/hbnxb.20193066.

NIU Runzhi, ZHU Changwei, JIANG Guiying, YANG Jin, LUO Lan, SHEN Fengmin, LIU Fang, LIU Shiliang. Effects of Rotation Tillage Pattern on Wheat Photosynthetic Characteristics, Yield,and Soil Nutrients in Fluvo-aquic Soil in North Henan[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(4): 182-189. doi: 10.7668/hbnxb.20193066.

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