Response of soil organic carbon to straw return in farmland soil in China: A meta-analysis

Journal of Environmental Management, Год журнала: 2024, Номер 359, С. 121051 - 121051

Опубликована: Май 1, 2024

Язык: Английский

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Straw addition and low soil moisture decreased temperature sensitivity and activation energy of soil organic matter

Geoderma, Год журнала: 2024, Номер 442, С. 116802 - 116802

Опубликована: Фев. 1, 2024

Incorporating straw into soils is an effective and cost-efficient method for sequestering organic carbon (C) enhancing soil quality. However, the interactive effects of moisture temperature on matter (SOM) mineralization have remained unclear in presence plant residues. We assessed impacts 13C-labeled maize (Zea mays) SOM two with contrasting C content (3.0 % 6.8 %) under levels (45 or 65 water holding capacity (WHC)) temperatures (12 °C 22 °C) through experimental incubation. In absence addition, CO2 production at was 2–3 times more than 12 °C, 31–40 higher WHC 45 both soils. Soil interactively affected decomposition. After a 66-day incubation, approximately 7–11 decomposed to CO2, contributing 44–67 total production. Straw addition increased across all levels, resulting positive priming effect (PE). The highest PE observed 22℃ sensitivity (Q10 value) native decreased due quality (i.e., basal microbial respiration rate per unit 0 DOC/SOC) compared control (no addition). Q10 values decomposition WHC, indicating that drought conditions potential dampen also discovered correlation between activation energy negative quality, providing support hypothesis. summary, our findings contribute advancing understanding how dynamics respond exogenous inputs environment change.

Язык: Английский

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Straw Soil Conditioner Modulates Key Soil Microbes and Nutrient Dynamics across Different Maize Developmental Stages

Microorganisms, Год журнала: 2024, Номер 12(2), С. 295 - 295

Опубликована: Янв. 30, 2024

Soil amendments may enhance crop yield and quality by increasing soil nutrient levels improving absorption efficiency, potentially through beneficial microbial interactions. In this work, the effects of amending with straw-based carbon substrate (SCS), a novel biochar material, on nutrients, communities, maize were compared those amendment conventional straw. The diversity abundance bacterial fungal communities significantly influenced both growth period treatment used. Regression analysis community variation indicated that Rhizobiales, Saccharimonadales, Eurotiales taxa exhibited positive response to SCS during stages maize. Members these break down organic matter release nutrients promote plant yield. seedling vegetative growth, Rhizobiales is positively correlated total nitrogen (TN) content in soil. During tasseling physiological maturity corn, Saccharimonadales (TC), phosphorus (TP), available (AP) results suggest specific microorganisms are recruited at different supply required each stage. This targeted recruitment strategy optimizes availability plants ultimately leads higher yields. identification key provide theoretical basis for improvement quality. study demonstrates enhances straw incorporation sheds light amendment, providing valuable insights future implementation material.

Язык: Английский

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Enhancing Sustainable Agriculture in China: A Meta-Analysis of the Impact of Straw and Manure on Crop Yield and Soil Fertility

Agriculture, Год журнала: 2024, Номер 14(3), С. 480 - 480

Опубликована: Март 16, 2024

As the main organic materials, straw and manure play a critical role in soil carbon (SOC) sequestration crop yield China. This meta-analysis evaluated impact of amendments, both individually combined, on yield, SOC, nutrients China by collecting 173 studies. The findings this study revealed that return application increased yields 14.4% 70.4%, respectively, overall. Combined gained better improvement effect than alone but was less effective alone. Regarding results, rice 3000–6000 kg ha−1 returning quantity improved available phosphorus (AP), potassium (AK), total nitrogen (TN) most; regarding form, incorporated into biochar SOC more, respectively; <5 years ≥5 treatment TN respectively. application, pig chicken 50–80% substitution ratio 10–20 duration were best for improving AP, AK, TN. highlights importance optimal amendment through or applications to achieve win–win between fertility under requirement sustainable agriculture.

Язык: Английский

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Establishment and validation the DEM-MBD coupling model of flexible straw-Shajiang black soil-walking mechanism interactions

Computers and Electronics in Agriculture, Год журнала: 2024, Номер 224, С. 109203 - 109203

Опубликована: Июнь 27, 2024

Язык: Английский

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Dramatical variation in rill erosion resistance during two-year continuous straw incorporation on sloping farmland

Agriculture Ecosystems & Environment, Год журнала: 2025, Номер 382, С. 109500 - 109500

Опубликована: Янв. 21, 2025

Язык: Английский

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Unraveling carbon mineralization patterns and mechanisms in conservation agriculture: A global synthesis and multi-point experiment

Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 144900 - 144900

Опубликована: Янв. 1, 2025

Язык: Английский

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Carbon dioxide fluxes and carbon budget of a sugarcane ecosystem with crop residue returning in South China

Field Crops Research, Год журнала: 2025, Номер 322, С. 109744 - 109744

Опубликована: Янв. 9, 2025

Язык: Английский

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Improved estimation of soil organic carbon stock in subtropical cropland of Southern China based on digital soil mapping and multi-sources data

Geo-spatial Information Science, Год журнала: 2025, Номер unknown, С. 1 - 24

Опубликована: Март 12, 2025

Язык: Английский

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Straw Returning Amount and Duration Influence Paddy Soil Organic Carbon Sequestration by Regulating Plant‐ and Microbe‐Derived Carbon Accumulation

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

ABSTRACT Straw‐returning‐driven sequestration of soil organic carbon (SOC) is critical for cropland (C) storage and stability. However, the effects plant‐ microbe‐derived C accumulation in SOC remain unclear rice systems. Herein, this study synthetically explored response microbial necromass lignin phenols to straw return assessed their contributions under two application amounts durations. The field‐based experiment was established 1982. results indicated that returning paddy fields significantly increased content by 7%–46%, with a higher rate longer duration yielding greater increases. Fungal (FNC) showed (3.8–5.9 g kg −1 ) proportion (20%–25%) than bacterial (BNC; 1.6–2.5 9%–11%). amount returns had small influence on proportions FNC BNC SOC. Accumulation (0.2–0.8 soils (1%–3%) were lower those amino sugars (0.7–1.1 3.8%–4.5%) not affected or duration. Soil closely associated available nitrogen (AN), biomass (MBC), (MBN) contents, whereas strong link AN MBC contents. phenol related AN, potassium, accumulations positively contributed SOC, MBC, MBN contents indirectly regulating C. These highlight benefits sequestration, linked positive accumulation.

Язык: Английский

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