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中国农学通报 ›› 2025, Vol. 41 ›› Issue (17): 78-87.doi: 10.11924/j.issn.1000-6850.casb2025-0211

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

耕作方式对土壤团聚体稳定性、土壤质量和玉米产量的影响

顾嘉诚1,2(), 王家平1, 张增成1,2, 蒋贵菊2,3, 李鲁华1(), 程志博1,2()   

  1. 1 石河子大学农学院,新疆石河子 832003
    2 石河子大学新疆博乐玉米科技小院,新疆博乐 833400
    3 博乐市农业农村机械化发展服务中心,新疆博乐 833400
  • 收稿日期:2025-03-11 修回日期:2025-05-22 出版日期:2025-06-15 发布日期:2025-06-15
  • 通讯作者:
    李鲁华,女,1967年出生,新疆额敏人,教授,硕士,主要从事绿洲生态农业与绿洲农作制度研究。通信地址:832099 新疆石河子市北五路 新疆石河子市石河子大学北苑新区,Tel:0993-2055018,E-mail:
    程志博,男,1988年出生,甘肃平凉人,副教授,博士,主要从事农田养分循环与调控机制研究。通信地址:832099 新疆石河子市北五路 新疆石河子市石河子大学北苑新区,Tel:0993-2057990,E-mail:
  • 作者简介:

    顾嘉诚,男,1999年出生,江苏南通人,硕士研究生,研究方向:保护性耕作与土壤养分循环。通信地址:832099 新疆石河子市北五路 新疆石河子市石河子大学北苑新区,Tel:0993-2057990,E-mail:

  • 基金资助:
    2025兵团科普发展专项“博乐玉米小院科技赋能与社会服务计划”(S2025H41459); 国家自然科学基金“绿洲棉田间作体系土壤磷素生物有效性及其根际微生态机制”(32001488)

Effect of Tillage Practices on Soil Aggregate Stability, Soil Quality and Maize Yield

GU Jiacheng1,2(), WANG Jiaping1, ZHANG Zengcheng1,2, JIANG Guiju2,3, LI Luhua1(), CHENG Zhibo1,2()   

  1. 1 Agricultural College of Shihezi University, Shihezi, Xinjiang 832003
    2 Corn Science and Technology Backyard, Bole, Xinjiang 833400
    3 Bole Mechanization Development Service Center for Agriculture, Bole, Xinjiang 833400
  • Received:2025-03-11 Revised:2025-05-22 Published:2025-06-15 Online:2025-06-15

摘要:

本研究旨在探讨耕作方式对土壤理化性质、团聚体稳定性和土壤质量的影响,为新疆滴灌玉米农田土壤肥力和产量提升提供参考依据。于2022—2023年在新疆博乐市阿热勒托海牧场开展田间定位试验,供试玉米品种为‘金粒1702’,设置翻耕+覆膜(CT)、翻耕+不覆膜(BT)、免耕(NT)和浅耕(ST) 共4个处理,测定分析不同耕作方式下土壤理化性质、团聚体组成和玉米产量的变化。结果表明:与CT相比,NT和ST处理显著提高了>2 mm团聚体的百分含量、平均重量直径(MWD)、几何平均直径(GMD)和R0.25值(P<0.05),说明免耕和浅耕能够提高土壤团聚体稳定性;CT处理的温度和含水率均显著高于NT和ST处理,土壤容重的变化介于1.35~1.70 g/cm3,NT和ST中速效磷、全氮和有机碳含量较CT均显著提高;NT和ST的土壤质量指数较CT分别增加了19.82%和15.29%;NT和ST处理玉米产量显著高于CT和BT处理,分别达到20.67 t/hm2和19.84 t/hm2,穗粒数在各处理之间无显著差异,而NT处理千粒重显著高于其他处理(P<0.05)。Mantel分析表明产量与团聚体稳定性指数(MWD、GMD、D和R0.25)、理化性质和土壤质量指数呈显著正相关关系;结构方程模型表明,耕作方式通过改变土壤团聚体稳定性和土壤理化性质来影响土壤质量,而间接影响玉米产量。研究发现,在新疆滴灌玉米农田耕作方式中,免耕和浅耕相较于常规耕作增产9.13%和4.75%,对于土壤结构稳定、土壤质量和玉米产量的提升效果显著。

关键词: 耕作方式, 团聚体, 土壤质量, 玉米产量, 土壤理化性质, 免耕, 浅耕, 保护性耕作

Abstract:

The aim of this study is to investigate the effects of tillage practices on soil properties, aggregate stability and soil quality, providing references for improving soil fertility and yield in drip-irrigated maize fields in Xinjiang. A field positioning experiment was conducted in Areoletuohai Ranch, Bole City, Xinjiang from 2022-2023 with the maize variety ‘Jinli1702’ as the test material. Four tillage treatments were set up, including conventional tillage with plastic film (CT), conventional tillage without plastic film (BT), no-tillage (NT) and shallow tillage (ST). The changes in soil properties, aggregate fractions and maize yield were analyzed to evaluate the effects of tillage practices on soil quality and maize yield. The results showed that compared with CT, both NT and ST significantly increased >2 mm aggregate contents, mean weight diameter (MWD), geometric mean diameter (GMD), and R0.25 (P<0.05), indicating improved soil aggregate stability. Under the CT, soil temperature and moisture content were significantly higher than that in the NT and ST. Soil bulk density ranged from 1.35 to 1.70 g/cm3, with NT and ST showing significantly higher levels of available phosphorus, total nitrogen and organic carbon compared to CT. The soil quality index (SQI) in NT and ST increased by 19.82% and 15.29%, respectively, compared to CT. Maize yield under NT and ST was significantly higher than under CT and BT, reaching 20.67 t/hm2 and 19.84 t/hm2, respectively. But, there were no differences in ear grain number across four treatments, while the thousand-grain weight of NT was significantly higher than that of the others (P<0.05). Mantel analysis revealed significant positive correlations between yield and aggregate stability indices (MWD, GMD, D and R0.25), soil properties, and SQI. Structural equation modeling showed that tillage practices affected soil quality by altering soil aggregate stability and soil properties, thereby indirectly influencing maize yield. The results showed that the yield of NT and ST increased by 9.13 % and 4.75 % compared with conventional tillage in drip irrigation maize farmland in Xinjiang, which had a significant effect on soil structure stability, soil quality and maize yield.

Key words: tillage practices, aggregates, soil quality, maize yield, soil physical and chemical properties, no-tillage, shallow tillage, conservation tillage