Biochar application significantly increases soil organic carbon under conservation tillage: an 11-year field experiment

Biochar, Год журнала: 2023, Номер 5(1)

Опубликована: Май 19, 2023

Abstract Biochar application and conservation tillage are significant for long-term organic carbon (OC) sequestration in soil enhancing crop yields, however, their effects on native (native SOC) without biochar situ remain largely unknown. Here, an 11-year field experiment was carried out to examine different rates (0, 30, 60, 90 Mg ha −1 ) SOC pools labile pool I II, recalcitrant microbial activities calcareous across entire winter wheat–maize rotation. The proportions of C 3 4 -derived mineralization were quantified using basal respiration (SBR) combined with 13 natural isotope abundance measurements. results showed that 39–51% the remained top 30 cm after 11 years. significantly increased contents but decreased proportion [native dissolved (DOC), biomass (MBC)]. tended increase indicators associated degradation, such as SBR, fluorescein diacetate hydrolysis activity, metabolic quotient ( q CO 2 ). Meanwhile, higher (B60 B90) SBR enhanced mineralization. effect rate content fractions occurred 0–15 layer, there no differences at 15–30 cm. Soil depth also II . In conclusion, accumulation by SOC, collectively influenced seasonal turnover fractions, which has important implications agricultural sequestration. Graphical

Язык: Английский

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Soil organic carbon fractions in response to soil, environmental and agronomic factors under cover cropping systems: A global meta-analysis

Agriculture Ecosystems & Environment, Год журнала: 2023, Номер 355, С. 108591 - 108591

Опубликована: Май 23, 2023

Язык: Английский

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Integrating digital technologies in agriculture for climate change adaptation and mitigation: State of the art and future perspectives

Computers and Electronics in Agriculture, Год журнала: 2024, Номер 226, С. 109412 - 109412

Опубликована: Сен. 7, 2024

Язык: Английский

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Quantification of the effects of conservation practices on surface runoff and soil erosion in croplands and their trade-off: A meta-analysis

The Science of The Total Environment, Год журнала: 2022, Номер 864, С. 161015 - 161015

Опубликована: Дек. 19, 2022

Язык: Английский

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A global meta‐analysis of cover crop response on soil carbon storage within a corn production system

Agronomy Journal, Год журнала: 2023, Номер 115(4), С. 1543 - 1556

Опубликована: Март 22, 2023

Abstract By influencing soil organic carbon (SOC), cover crops play a key role in shaping health and hence the system's long‐term sustainability. However, magnitude by which impacts SOC depends on multiple factors, including type, climate, crop rotation, tillage growth, years under management. To elucidate how these factors influence relative impact of SOC, we conducted meta‐analysis within rotations that included corn ( Zea mays L.) accumulation. Information climatic conditions, characteristics, management, performance was extracted, resulting 198 paired comparisons from 61 peer‐reviewed studies. Over course each study, average increased 7.3% (95% CI, 4.9%–9.6%). Furthermore, crop–induced increases percent change evaluated across textures, types, rotations, biomass amounts, durations, practices, zones. Our results suggest current crop–based production systems are sequestering 5.5 million Mg per year United States have potential to sequester 175 globally. These findings can be used improve footprint calculations develop science‐based policy recommendations. Taken altogether, cropping is promising strategy atmospheric C make more resilient changing climates.

Язык: Английский

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Response of nitrate leaching to no‐tillage is dependent on soil, climate, and management factors: A global meta‐analysis

Global Change Biology, Год журнала: 2023, Номер 29(8), С. 2172 - 2187

Опубликована: Янв. 26, 2023

Abstract No tillage (NT) has been proposed as a practice to reduce the adverse effects of on contaminant (e.g., sediment and nutrient) losses waterways. Nonetheless, previous reports impacts NT nitrate () leaching are inconsistent. A global meta‐analysis was conducted test hypothesis that response under NT, relative tillage, is associated with type (inversion vs non‐inversion tillage), soil properties organic carbon [SOC]), climate factors (i.e., water input), management practices duration nitrogen fertilizer inputs). Overall, compared all forms combined, had 4% 14% greater area‐scaled yield‐scaled losses, respectively. The tended be 7% than inversion but comparable tillage. Greater most evident short‐duration (<5 years), where inputs were low (<2 mm day −1 ), in medium texture SOC (<1%) soils, at both higher (>200 kg ha ) lower (0–100 rates addition. Of these, important factor affecting risk NO 3 − Globally, average, amount leached mainly attributed corresponding increases drainage. percentage cropping land increased from years (31%) 15 (54%). This study highlighted benefits adoption for mitigating likely long‐term systems high‐SOC soils.

Язык: Английский

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Comparative analysis and prediction of cation exchange capacity via summation: influence of biochar type and nutrient ratios

Frontiers in Soil Science, Год журнала: 2024, Номер 4

Опубликована: Март 27, 2024

Introduction Enhancing soil cation exchange capacity (CEC) is of paramount importance for sustainable agriculture and ecosystem health. This study investigated the pivotal role biochar in altering CEC challenges conventional assumptions about universal effects application. Methods Contrasting types, one with a low ash content 4.4% (switchgrass-derived biochar, SGB) other high 45.9% (poultry litter-derived PLB) were used. Two experiments treated increasing application rates conducted: without plants grown ryegrass. Effective (summation method) was determined by two extraction methods: Mehlich-3 (M3) ammonium acetate (AA). Results discussion The SGB decreased 27% on average (from both experiments) from lowest to highest rate application, while PLB significantly increased 91%. highlights critical properties influencing dynamics. In second experiment, ryegrass cultivation revealed greater calcium magnesium/potassium ratio ([Ca+Mg]/K) than only plant growth biochar-amended soils. ratios optimum production ranged 82‒86 69‒74 (AA), which translated 88:11:1 Ca:Mg:K percent base saturation ratios. Moreover, predictive models estimation after successfully developed based initial CEC. However, M3 more reliable AA such predictions mainly because it successful predicting nutrient availability biochar. These offer promising tool informed management decisions. Conclusion research emphasizes feedstock, elucidates growth, provides practical means anticipate changes post-biochar

Язык: Английский

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Carbon sequestration potential of sustainable agricultural practices to mitigate climate change in Indian agriculture: A meta-analysis

Sustainable Production and Consumption, Год журнала: 2022, Номер 35, С. 697 - 708

Опубликована: Дек. 22, 2022

Язык: Английский

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Carbon sequestration potential of agroforestry systems in Indian agricultural landscape: A Meta-Analysis

Ecosystem Services, Год журнала: 2023, Номер 62, С. 101537 - 101537

Опубликована: Июнь 16, 2023

Язык: Английский

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Mapping of land degradation using spectral angle mapper approach (SAM): the case of Inaouene watershed (Northeast Morocco)

Modeling Earth Systems and Environment, Год журнала: 2023, Номер 10(1), С. 221 - 231

Опубликована: Фев. 25, 2023

Язык: Английский

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