Straw-derived biochar optimizes water consumption, shoot and root characteristics to improve water productivity of maize under reduced nitrogen

Guo, Ru; Qian, Rui; Du, Luning; Sun, Weili; Wang, Jinjin; Cai, Tie; Zhang, Peng; Jia, Zhikuan; Ren, Xiaolong; Chen, Xiaoli

doi:10.1016/j.agwat.2024.108722

Agricultural Water Management

2024

DOI: 10.1016/j.agwat.2024.108722

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Straw-derived biochar optimizes water consumption, shoot and root characteristics to improve water productivity of maize under reduced nitrogen

Ru Guo,

Rui Qian,

Luning Du

et al.

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Cited by 3 publications

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Straw return rearranges soil pore structure improving soil moisture memory in a maize field experiment under rainfed conditions

Wang,

Sun,

Zhang

et al. 2024

Agricultural Water Management

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Straw return rearranges soil pore structure improving soil moisture memory in a maize field experiment under rainfed conditions

Wang,

Sun,

Zhang

et al. 2024

Agricultural Water Management

View full text Add to dashboard Cite

Biochar application improves maize yield on the Loess Plateau of China by changing soil pore structure and enhancing root growth

Ruan,

Zhang,

Lambers

et al. 2024

Science of The Total Environment

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Effects of Different Straw Return Methods on Farmland Carbon Footprint and Water Footprint

Hua,

Gao,

et al. 2024

Agriculture

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Straw return is an effective agricultural measure that influences the ecological environment. In the context of global climate change and the need for sustainable development, it is essential to explore how straw return methods affect the environment. This study conducted a two-year field experiment comparing different straw return treatments: no straw return (CK), straw return directly (SR), and straw returned in deep ditches (ISR). The results showed that SR treatment increased soil dissolved organic carbon (DOC) (21.7~25.8%) and dissolved organic nitrogen (DON) (8.5~43.8%) compared to CK. The ISR treatment significantly enhanced DOC (13.1~33.0%) and DON (14.2~50.8%). Both SR and ISR treatments also improved maize growth indicators, such as leaf area index (LAI), stem biomass, leaf biomass, and grain biomass. In terms of environmental effects, the ISR measure reduced N2O emissions and significantly lowered the carbon footprint (CF) and water footprint (WF). Specifically, the yield-scale carbon footprint (CFy) and yield-scale water footprint (WFy) of ISR were reduced by 12.0% and 9.1%, respectively, in 2023. Correlation analysis revealed that soil DON and DOC were key factors in these environmental benefits. Furthermore, the reduction in WF and CF was closely linked to the increased SWC and higher biomass in all maize organs. Therefore, we demonstrated that the ISR measure not only promotes maize biomass accumulation but also effectively mitigates carbon emissions and water consumption on farmland. It may be related to the boosting soil DON and DOC levels. Overall, the ISR method holds promise for supporting sustainable farming practices.

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Straw-derived biochar optimizes water consumption, shoot and root characteristics to improve water productivity of maize under reduced nitrogen

Cited by 3 publications

References 74 publications

Straw return rearranges soil pore structure improving soil moisture memory in a maize field experiment under rainfed conditions

Straw return rearranges soil pore structure improving soil moisture memory in a maize field experiment under rainfed conditions

Biochar application improves maize yield on the Loess Plateau of China by changing soil pore structure and enhancing root growth

Effects of Different Straw Return Methods on Farmland Carbon Footprint and Water Footprint

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