Biochar combined with N fertilization and straw return in wheat-maize agroecosystem: Key practices to enhance crop yields and minimize carbon and nitrogen footprints

被引:48
作者
Bai, Jinze [1 ,2 ]
Song, Jiajie [1 ,2 ]
Chen, Danyang [1 ,2 ]
Zhang, Zhihao [1 ,2 ]
Yu, Qi [1 ,2 ]
Ren, Guangxin [1 ,2 ]
Han, Xinhui [1 ,2 ]
Wang, Xiaojiao [1 ,2 ]
Ren, Chengjie [1 ,2 ]
Yang, Gaihe [1 ,2 ]
Wang, Xing [1 ,2 ]
Feng, Yongzhong [1 ,2 ]
机构
[1] Northwest A&F Univ, Coll Agron, Yangling 712100, Shaanxi, Peoples R China
[2] Res Ctr Recycle Agr Engn & Technol Shaanxi Prov, Yangling 712100, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Agricultural inputs; Greenhouse gas emissions; Greenhouse gas intensity; Carbon footprint; Nitrogen footprint; GREENHOUSE-GAS EMISSIONS; ORGANIC-CARBON; CLIMATE-CHANGE; LOESS PLATEAU; SOIL CO2; CHINA; PRODUCTIVITY; TILLAGE;
D O I
10.1016/j.agee.2023.108366
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Straw incorporation is widely applied to improve crop productivity, and biochar amendment may be an effective countermeasure for mitigating greenhouse gas (GHG) emissions; however, the comprehensive evaluation of straw return and biochar amendment coupled with different N application rates on soil organic carbon (SOC) sequestration rate, GHG emissions, and reactive N losses have been inadequately recorded. Consequently, the field experiment had six treatments and three replications including two mineral N fertilization rates (conven-tional N fertilizer application (N1) and 30% reduced N fertilizer application (N0.7)) and three types of straw and biochar management variations (no straw incorporation (S0), straw incorporation (S), and straw incorporation with biochar amendment (SB)) and the results were based on three years of soil SOC and GHGs emission data in wheat-maize agroecosystem. Our finding revealed that N0.7 reduced the GHG emissions (CO2: 13.9%; N2O: 34.2%; CH4: 32.5%), greenhouse gas intensity (GHGI; 32.7%), carbon footprint (CF; 35.1%) and nitrogen footprint (NF; 24.5%), but had no significantly different crop yields compared with N1 (p > 0.05). Straw incorporation had no significant impact on CF and yield-scaled CF but increased NF (29.7%) because the stimulated GHG emissions would be offset by SOC sequestration. Under S, the wheat and maize yields increased by 9.7% and 5.4%, respectively, whereas the GHGI increased by 59.6% compared with S0. Biochar amendment reduced GHG emissions (CO2: 19.9%; N2O: 29.9%), GHGI (32.7%), CF (26.7%) and yield-scaled CF (29.2%), while improving crop yields (wheat: 5.8% (p < 0.05); maize: 1.5% (p > 0.05)) and SOC sequestration rate (74.5%) compared with that under S. Overall, N0.7SB exhibited enormous potential for enhancing wheat-maize agroecosystem productivity and drastically mitigating their CF and NF in the semi-arid conditions of the Guanzhong Plain.
引用
收藏
页数:11
相关论文
共 45 条
  • [1] Effects of long-term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta-analysis
    Berhane, Medhn
    Xu, Miao
    Liang, Zhiying
    Shi, Jianglan
    Wei, Gehong
    Tian, Xiaohong
    [J]. GLOBAL CHANGE BIOLOGY, 2020, 26 (04) : 2686 - 2701
  • [2] Biochar and organic substitution improved net ecosystem economic benefit in intensive vegetable production
    Bi, Ruiyu
    Zhang, Qianqian
    Zhan, Liping
    Xu, Xintong
    Zhang, Xi
    Dong, Yubing
    Yan, Xiaoyuan
    Xiong, Zhengqin
    [J]. BIOCHAR, 2022, 4 (01)
  • [3] Environmental science - Nitrogen oxides and tropical agriculture
    Bouwman, AF
    [J]. NATURE, 1998, 392 (6679) : 866 - 867
  • [4] Effects of straw and plastic film mulching on greenhouse gas, emissions in Loess Plateau, China: A field study of 2 consecutive wheat-maize rotation cycles
    Chen, Haixin
    Liu, Jingjing
    Zhang, Afeng
    Chen, Jing
    Cheng, Gong
    Sun, Benhua
    Pi, Xiaomin
    Dyck, Miles
    Si, Bingcheng
    Zhao, Ying
    Feng, Hao
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2017, 579 : 814 - 824
  • [5] Global food system emissions could preclude achieving the 1.5° and 2°C climate change targets
    Clark, Michael A.
    Domingo, Nina G. G.
    Colgan, Kimberly
    Thakrar, Sumil K.
    Tilman, David
    Lynch, John
    Azevedo, Ines L.
    Hill, Jason D.
    [J]. SCIENCE, 2020, 370 (6517) : 705 - +
  • [6] Effect of tillage systems and different rates of nitrogen fertilisation on the carbon footprint of irrigated maize in a semiarid area of Castile and Leon, Spain
    Dachraoui, Maroua
    Sombrero, Aurora
    [J]. SOIL & TILLAGE RESEARCH, 2020, 196
  • [7] Organic carbon and total nitrogen stocks in a Vertisol following 40 years of no-tillage, crop residue retention and nitrogen fertilisation
    Dalal, R. C.
    Allen, D. E.
    Wang, W. J.
    Reeves, S.
    Gibson, I.
    [J]. SOIL & TILLAGE RESEARCH, 2011, 112 (02) : 133 - 139
  • [8] Reducing soil CO2 emission and improving upland rice yield with no-tillage, straw mulch and nitrogen fertilization in northern Benin
    Dossou-Yovo, Elliott Ronald
    Brueggemann, Nicolas
    Jesse, Naab
    Huat, Joel
    Ago, Expedit Evariste
    Agbossou, Euloge Kossi
    [J]. SOIL & TILLAGE RESEARCH, 2016, 156 : 44 - 53
  • [9] Calculation of organic matter and nutrients stored in soils under contrasting management regimes
    Ellert, BH
    Bettany, JR
    [J]. CANADIAN JOURNAL OF SOIL SCIENCE, 1995, 75 (04) : 529 - 538
  • [10] Assessing the environmental benefit of a new fertilizer based on activated biochar applied to cereal crops
    Gonzalez-Cencerrado, Ana
    Pallares Ranz, Javier
    Lopez-Franco Jimenez, Maria Teresa
    Rebolledo Gajardo, Boris
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2020, 711 (711)