Straw Returning with Decomposition Agent Enhanced Rice Yield and Decreased Yield-Scaled N2O Emissions in Tropical Paddy Fields DOI Creative Commons

Longwei Meng,

Qianwen Lu, Lin Tian

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(12), P. 3060 - 3060

Published: Dec. 22, 2024

Straw returning (R) combined with the application of a decomposition agent (RD) can increase crop yield and soil carbon (C) storage. However, effect RD on nitrous oxide (N2O) emissions in tropical areas remains poorly understood. In this study, an situ experiment was performed under different water management strategies (long-term flooding or alternate wetting drying) R treatments to evaluate N2O rice yield. The SOC TN contents were significantly lower treatment than treatment. increased yield; however, further yield-scaled higher no-straw-returning greatly reduced various compared those Moreover, control. distinctly drying long-term flooding. Our results indicated that straw agents effectively reduce areas.

Language: Английский

A global meta‐analysis of yield‐scaled N2O emissions and its mitigation efforts for maize, wheat, and rice DOI
Zhisheng Yao,

Haojie Guo,

Yan Wang

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(2)

Published: Feb. 1, 2024

Abstract Maintaining or even increasing crop yields while reducing nitrous oxide (N 2 O) emissions is necessary to reconcile food security and climate change, the metric of yield‐scaled N O emission (i.e., per unit yield) at present poorly understood. Here we conducted a global meta‐analysis with more than 6000 observations explore variation patterns controlling factors for maize, wheat rice associated potential mitigation options. Our results showed that average across all available data followed order (322 g Mg −1 , 95% confidence interval [CI]: 301–346) > maize (211 CI: 198–225) (153 144–163). Yield‐scaled individual crops were generally higher in tropical subtropical zones temperate zones, also trend towards lower intensities from low high latitudes. This was better explained by climatic edaphic fertilizer management, their combined effect predicted 70% variance. Furthermore, our analysis significant decrease use efficiency production systems cereal >10 ha (maize), 6.6 (wheat) 6.8 (rice), respectively. highlights indicators can be used as valuable proxies reconciling trade‐offs between mitigation. For three major staple crops, fertilization up 30%, optimizing timing placement application using enhanced‐efficiency fertilizers significantly reduced similar yields. data‐driven assessment provides some key guidance developing effective targeted adaptation strategies sustainable intensification production.

Language: Английский

Citations

26

The denitrification mechanism and microbial responses of oligotrophic aerobic denitrifying bacteria coupled with various sources biochar DOI

Yiling Di,

Rui Huo,

Wanying Li

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106983 - 106983

Published: Jan. 14, 2025

Language: Английский

Citations

1

Long-term saline water irrigation has the potential to balance greenhouse gas emissions and cotton yield in North China plain DOI Creative Commons
Shuang Zhou,

Guangshuai Wang,

Junpeng Zhang

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 352, P. 120087 - 120087

Published: Jan. 12, 2024

Saline water has proven to be one of the alternative sources freshwater for agricultural irrigation in water-scarce areas. However, changes farmland ecology caused by saline remain unclear. In this study, six salinities (CK: 1.3 dS m

Language: Английский

Citations

5

Optimizing water and nitrogen inputs for sustainable wheat yields and minimal environmental impacts DOI
Xiaomeng Huang,

Xinpeng Xu,

Qichao Zhu

et al.

Agricultural Systems, Journal Year: 2024, Volume and Issue: 220, P. 104061 - 104061

Published: July 17, 2024

Language: Английский

Citations

5

Deficit irrigation interacting with biochar mitigates N2O emissions from farmland in a wheat–maize rotation system DOI Creative Commons
Pengyan Zhang,

Jiangzhou Liu,

Haocheng Zhang

et al.

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 297, P. 108843 - 108843

Published: April 29, 2024

Biochar application to agricultural fields is an effective carbon sequestration measure that has the potential reduce N2O emissions and increase soil water holding capacity. However, interaction mechanisms of biochar under deficit irrigation on remain unclear. A two-year field experiment conducted in Guanzhong Plain, China, order quantify effects from winter wheat–summer maize crop rotation investigate nitrification denitrification. According combination actual evapotranspiration-based scheduling, four treatments are designed (B1W100: 30 t·ha−1 + ET; B1W80: t·ha−1+ 0.8 B0W100: no B0W80: 0.8ET). The flux, physical chemical properties, key functional gene abundance related denitrification at different growth stages investigated discussed. Results show between significantly reduces emissions. During wheat season, by average 12.9% 15.2%, respectively. Deficit also 17.4% 15.5%, Pearson correlation analysis shows correlated with water-filled pore space during phase intense Soil determined for both maize. Maximum observed time when enter stage their peak jointing stage. With addition irrigation, nirK nosZ genes increases AOB amoA decreases. These results suggest a better solution soils.

Language: Английский

Citations

4

Coated and un-coated urea incorporated with organic fertilizer improves rice nitrogen uptake and mitigates gaseous active nitrogen loss and microplastic pollution DOI
Yajun Zhang,

Wenli Tao,

Kuanyu Zhu

et al.

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 375, P. 109201 - 109201

Published: July 26, 2024

Language: Английский

Citations

3

Co-incorporation of wheat straw and hairy vetch reduced soil N2O emission via regulating nitrifier and denitrifier structure on the Qinghai plateau DOI
Rui Liu, Peng Jiang, Guopeng Zhou

et al.

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 202, P. 105574 - 105574

Published: Aug. 14, 2024

Language: Английский

Citations

3

Straw Incorporation Mitigating Fertiliser‐Induced Nitrous Oxide Emissions in Intensively Managed Protected Vegetable Soils DOI
Wenchao Cao, Yajing Wang, Xiaomin Sun

et al.

Soil Use and Management, Journal Year: 2025, Volume and Issue: 41(2)

Published: April 1, 2025

ABSTRACT The impact of straw incorporation on nitrous oxide (N 2 O) emissions has long been a research focus. However, N O from protected vegetable soils with and their response to increased nitrogen (N) input are not well understood. To address this knowledge gap, greenhouse without 6‐year were studied in laboratory experiment aerobic incubations. Urea‐N solutions applied achieve contents 0, 20, 40, 80, 120 mg urea‐N kg −1 soil. Soil O, carbon dioxide (CO ) oxygen (O dynamics monitored using robotized incubation system, while ammonium (), nitrite nitrate () measured. Straw significantly reduced decreased emission fluxes. Cumulative exponentially rising rates, but lowered mean cumulative fertiliser‐induced factors at all rates. CO linearly elevated average fluxes, regardless addition. also accelerated depletion across content emerged as the most important predictor irrespective incorporation. findings show that decreases accumulation mitigates intensively managed soils. This study provides sustainable agricultural management approach balances soil fertility enhancement gas reduction.

Language: Английский

Citations

0

Influence of woodchip size and nitrogen fertilization on carbon dioxide and nitrous oxide emissions from soils amended with orchard biomass DOI
Suduan Gao,

Aileen Hendratna,

Touyee Thao

et al.

Soil Science Society of America Journal, Journal Year: 2024, Volume and Issue: 88(3), P. 803 - 815

Published: Feb. 25, 2024

Abstract Incorporating large amounts of woody biomass into soil, such as in whole orchard recycling (WOR), can promote carbon sequestration, nutrient recycling, and ecosystem health agricultural fields. Yet uncertainty regarding the effects WOR on soil (C) nitrogen (N) dynamics influences management decisions. The objective this research was to evaluate woodchip (WC) size interaction with N fertilization dioxide (CO 2 ) nitrous oxide (N O) emissions. An 8‐month incubation experiment incorporating WC (4% w/w, equivalent ∼40 tons per acre) four sieved sizes (0.2–1.6, 1.6–3.2, 3.2–6.4, 6.4–12.7 mm) without applications conducted. All treatments showed that CO emission peaked within first week, then decreased drastically afterward. peak delayed value (WC increased). finest (<1.6 yielded lowest total emissions resulted greatest increase C at end incubation. Nitrogen application reduced by 1% smallest 8%–9% for those larger than 1.6 mm. O spiked following each fertilizer from size, suggesting substantial immobilization. results imply delay mineralization reduce initial immobilization risks, but may have stabilized increased organic carbon. This our understanding be used management.

Language: Английский

Citations

2

Low-carbon transformation of China’s smallholder agriculture: exploring the role of farmland size expansion and green technology adoption DOI
Dongying Xie, Weilong Gao

Environmental Science and Pollution Research, Journal Year: 2023, Volume and Issue: 30(48), P. 105522 - 105537

Published: Sept. 16, 2023

Language: Английский

Citations

5