Details
| Original language | English |
|---|---|
| Article number | 104109 |
| Journal | Environmental Technology and Innovation |
| Volume | 38 |
| Early online date | 25 Feb 2025 |
| Publication status | E-pub ahead of print - 25 Feb 2025 |
Abstract
This study investigated how fertilizer affects microbial communities and carbon storage in soils with contrasting organic carbon levels (16.3 % vs. 1 % SOC). Soils were incubated for 67 days (25°C, 60 % water-filled pores) under four treatments: (NH₄)₂SO₄, manure, (NH₄)₂SO₄ with garlic stalk (RGS), and manure with RGS. The results reveal that alone (NH₄)₂SO₄ increased Proteobacteria relative abundance by 129 % (significantly higher than alone manure's 51 %) in high SOC soil (16.3 %). Manure combined with RGS enhanced K-strategists (+33 %), reduced r/K ratio, stabilized carbon pools, and achieved the highest SOC increment (+21 mg g−1). In low SOC soil (1 %), RGS amended treatments triggered explosive growth of Firmicutes (+382–615 %), amplified r-strategists (+13 %) with elevated r/K ratios (39−47), driving soil organic carbon accumulation (+25 mg g−1). The findings demonstrate that coordinated manure application with residues optimizes soil carbon through divergent microbial strategies - reinforcing K-strategists for carbon stabilization in high-SOC soils while activating r-strategists for carbon formation in low-SOC soils, achieving soil carbon pool enhancement.
Keywords
- Fertilization, R- and K- strategists, Residue returning, SOC storage, Soil bacterial community, Soil bacterial diversity
ASJC Scopus subject areas
- Environmental Science(all)
- General Environmental Science
- Agricultural and Biological Sciences(all)
- Soil Science
- Agricultural and Biological Sciences(all)
- Plant Science
Sustainable Development Goals
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In: Environmental Technology and Innovation, Vol. 38, 104109, 05.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Manure-residue co-application drives SOC sequestration through differential microbial strategist selection
AU - Huang, Fan
AU - Wang, Hailun
AU - Raza, Sajjad
AU - Zamanian, Kazem
AU - Liang, Yinku
AU - Zhao, Xiaoning
N1 - Publisher Copyright: © 2025 The Authors
PY - 2025/2/25
Y1 - 2025/2/25
N2 - This study investigated how fertilizer affects microbial communities and carbon storage in soils with contrasting organic carbon levels (16.3 % vs. 1 % SOC). Soils were incubated for 67 days (25°C, 60 % water-filled pores) under four treatments: (NH₄)₂SO₄, manure, (NH₄)₂SO₄ with garlic stalk (RGS), and manure with RGS. The results reveal that alone (NH₄)₂SO₄ increased Proteobacteria relative abundance by 129 % (significantly higher than alone manure's 51 %) in high SOC soil (16.3 %). Manure combined with RGS enhanced K-strategists (+33 %), reduced r/K ratio, stabilized carbon pools, and achieved the highest SOC increment (+21 mg g−1). In low SOC soil (1 %), RGS amended treatments triggered explosive growth of Firmicutes (+382–615 %), amplified r-strategists (+13 %) with elevated r/K ratios (39−47), driving soil organic carbon accumulation (+25 mg g−1). The findings demonstrate that coordinated manure application with residues optimizes soil carbon through divergent microbial strategies - reinforcing K-strategists for carbon stabilization in high-SOC soils while activating r-strategists for carbon formation in low-SOC soils, achieving soil carbon pool enhancement.
AB - This study investigated how fertilizer affects microbial communities and carbon storage in soils with contrasting organic carbon levels (16.3 % vs. 1 % SOC). Soils were incubated for 67 days (25°C, 60 % water-filled pores) under four treatments: (NH₄)₂SO₄, manure, (NH₄)₂SO₄ with garlic stalk (RGS), and manure with RGS. The results reveal that alone (NH₄)₂SO₄ increased Proteobacteria relative abundance by 129 % (significantly higher than alone manure's 51 %) in high SOC soil (16.3 %). Manure combined with RGS enhanced K-strategists (+33 %), reduced r/K ratio, stabilized carbon pools, and achieved the highest SOC increment (+21 mg g−1). In low SOC soil (1 %), RGS amended treatments triggered explosive growth of Firmicutes (+382–615 %), amplified r-strategists (+13 %) with elevated r/K ratios (39−47), driving soil organic carbon accumulation (+25 mg g−1). The findings demonstrate that coordinated manure application with residues optimizes soil carbon through divergent microbial strategies - reinforcing K-strategists for carbon stabilization in high-SOC soils while activating r-strategists for carbon formation in low-SOC soils, achieving soil carbon pool enhancement.
KW - Fertilization
KW - R- and K- strategists
KW - Residue returning
KW - SOC storage
KW - Soil bacterial community
KW - Soil bacterial diversity
UR - http://www.scopus.com/inward/record.url?scp=85218999340&partnerID=8YFLogxK
U2 - 10.1016/j.eti.2025.104109
DO - 10.1016/j.eti.2025.104109
M3 - Article
AN - SCOPUS:85218999340
VL - 38
JO - Environmental Technology and Innovation
JF - Environmental Technology and Innovation
SN - 2352-1864
M1 - 104109
ER -