Combined application of chemical fertilizer with green manure increased the stabilization of organic carbon in the organo-mineral complexes of paddy soil

Xu, Peidong; Wu, Jian; Wang, Hui; Tang, Shan; Cheng, Wen‐Long; Li, Min; Bu, Rongyan; Han, Shang; Geng, Meiyu

doi:10.1007/s11356-022-22315-2

Cited by 13 publications

(4 citation statements)

References 44 publications

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“…The difference was that we found that FMS had an increasing effect on the NLOC concentrations, but the improvement effect was less and less significant from 2018 to 2020. Xu et al [15] noted the combined utilization of CF with MV and RS largely promoted organic carbon stabilization because carbonyl C and aromatic C were associated with Fe/Al oxides. The higher NLOC concentrations and proportions of LOC were found in the organic material treatments than in the F treatments, which was confirmed by the CMI.…”

Section: Effects Of Chinese Milk Vetch and Rice Straw On Soc And Its ...mentioning

confidence: 99%

“…Therefore, labile and non-labile SOC fractions are important indicators of C turnover and accumulation, and it is thus essential to understand their changes in reply to the synergistic utilization of MV and RS. However, the co-incorporation of MV and RS into paddy fields for soil C sequestration and rice yield depends on the combined amounts of chemical fertilizers, especially N application [14,15]. The report pointed out that if full N fertilizer was used together with green manure, it might lead to a decrease in microbial network complexity, reducing the types and quantities of microorganisms.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Effects of Reducing Nitrogen Fertilizer: Stabilizing Yield and Carbon Sequestration by Synergistic Utilization of Chinese Milk Vetch and Rice Straw in Double-Cropping Rice Area

Xie,

Liao,

et al. 2024

Agronomy

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The excessive application of chemical fertilizers in rice fields exacerbates soil degradation and poses a threat to food security. Achieving an increase in rice production and minimizing environmental costs are inevitable requirements for achieving sustainable rice production. The synergistic utilization of rice straw (RS) and Chinese milk vetch (MV) is a sustainable measure to improve soil quality in Southern China. How this management strategy impacts agricultural productivity and soil carbon (C) sequestration under different fertilization conditions is unclear. Several treatments, including only chemical fertilizer (F), F + MV (FM), F + RS (FS), and F + MV + RS (FMS) under a standard rate of nitrogen (N100) and 40% reduced nitrogen (N60) levels were designed to explore changes in rice yields and soil organic carbon (SOC) concentrations, stocks, and soil labile organic C fractions (permanganate oxidizable C) during 2018–2020 in a double-rice-cropping system. The results show that the FMS treatment reduced soil bulk density to alleviate soil compaction and improved the soil carbon management index. The synergistic utilization of MV and RS replacing 40% of the chemical N fertilizer could still maintain the rice yield. Compared to the F treatment, the average annual grain yield was significantly increased by 9.82% and 5.84% in the FMS treatment; SOC concentration was increased by 16.05% and 19.98% on average (p < 0.05), and SOC stock was increased by 1.78 Mg C ha−1 and 2.37 Mg C ha−1 under the N60 and N100 levels, respectively. The random forest regression model and correlation analysis demonstrated that the inputs of chemical N, organic N and C, and appropriate C/N ratio promoted soil C accumulation. Furthermore, the structural equation model analysis exhibited that the C input affects the highly labile organic carbon (HLOC) and total labile organic carbon (LOC); the HLOC had a positive effect on SOC (p < 0.05). N input had a significant effect on LOC and yield. Our results suggest that the synergistic utilization of MV and RS plays an important role in ensuring stable grain production, improving soil C sequestration capacity, and maintaining soil environmental health in Southern China.

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Section: Effects Of Chinese Milk Vetch and Rice Straw On Soc And Its ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the Effects of Reducing Nitrogen Fertilizer: Stabilizing Yield and Carbon Sequestration by Synergistic Utilization of Chinese Milk Vetch and Rice Straw in Double-Cropping Rice Area

Xie,

Liao,

et al. 2024

Agronomy

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“…The long-term eld experiment was started in 2008 in the town of Tongcheng, Anhui Province, China (117º04 '43.62"E, 31º06'26.46"N). The soil is classi ed as a typical Inceptisol developed from river alluvium and the predominant clay minerals are kaolinite, vermiculite, and illite (Xu et al 2023). The initial soil (0-20 cm) properties were as follows: sand, 15.82%; silt, 58.69%; clay, 25.49%; soil organic matter (SOM), 27.09 g kg − 1 ; total N (TN), 1.72 g kg − 1 ; total P (TP), 0.73 g kg − 1 ; AP, 8.87 mg kg − 1 ; available K (AK), 79.49 mg kg − 1 ; and pH 5.52.…”

Section: Site and Soil Descriptionmentioning

confidence: 99%

Long-term application of Chinese milk vetch return altered the distribution and species of phosphorus associated with soil aggregates in double-rice cropping system

Wang

Tang

Han

et al. 2023

Preprint

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Purpose Chinese milk vetch (MV) as green manure is utilized to improve rice yield and paddy soil fertility in China. However, the long-term effects of MV on the distribution and species of phosphorus (P) in soil aggregates is poorly understood. Methods There were four treatments including with (1) no chemical fertilizer and no MV (CK); (2) chemical fertilizer alone (F1); (3) 70% of chemical fertilizer alone (F2); and (4) 70% of chemical fertilizer and MV (F2M). The content and fractions of P in soil aggregates, and the mechanisms underlying relationships among MV, chemical fertilizer, and P species in paddy soil were investigated. Results The proportion in > 2 mm aggregates positively responded to MV, also enhancing soil aggregate stability. MV applied improved P content and storage in > 2 mm aggregates and increased the available P (AP) in all soil aggregates compared with F2. The MV applied increased significantly NaHCO3-P (NaHCO3-Pi and NaHCO3-Po) and reduced the residue-P (Res-P), and there were negative correlation between Res-P and MV in all aggregates. Furthermore, MV influenced the P species by influencing soil organic matter, total nitrogen and total P in aggregates. Conclusions Although the input of chemical fertilizer played more important role on the P species, yet the reduction of Res-P was attributed to MV applied. Therefore, the co-incorporation of MV and chemical fertilizer improved the aggregate distribution and the availability and supply of P effectively in the double rice-MV cropping system.

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“…MOC is the carbon in the organo‐mineral complexes. Further deposition changes the carbon into inorganic carbonate, and it is stably deposited in the soil in this form (Georgiou et al, 2022; Xu et al, 2022). The ratio of the COC to TOC can be used to measure the proportion of organic matter in the sediments (Vivian, 1987).…”

Section: Introductionmentioning

confidence: 99%

Temporal variation in soil carbon in various paddy soil types in a cold temperate continental monsoon climate

Wang

Liu

et al. 2022

Soil Use and Management

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Soil organic carbon (SOC) is the most important carbon pool in the terrestrial ecosystem. However, temporal variations in paddy SOC under a temperate continental monsoon climate are poorly understood. Here, we demonstrate that significant SOC variations occur in meadow soil (MS), black soil (BS) and planosol (PS) paddy soils. Several soil samples were collected from different regions where rice was cultivated for 1, 6, 10, 23 and 40 years for MS samples; for 1, 6, 10, 20 and 35 years for BS samples and 1, 5, 10, 15 and 25 years for PS samples. The total organic carbon (TOC) content and humus organic carbon (HOC) content were found to increase as the rice cultivation duration increased, while the mineralizable organic carbon (MOC) content and carbohydrate organic carbon (COC) content exhibited the opposite trend. The relationships between the relative carbon accumulation (Y) in the three soil types and time (X) were consistent with the following models: Y TOC = 0.9973X 0.0245 , Y HOC = 0.9936X 0.0457 , Y MOC = 1.023X −0.073 , and Y COC = 1.040X −0.059 , describing the temporal variation in the various forms of organic carbon in paddy soils under a temperate continental monsoon climate.The results of this study provide a reference for soil carbon pool management and fertilization management.

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Combined application of chemical fertilizer with green manure increased the stabilization of organic carbon in the organo-mineral complexes of paddy soil

Cited by 13 publications

References 44 publications

Study on the Effects of Reducing Nitrogen Fertilizer: Stabilizing Yield and Carbon Sequestration by Synergistic Utilization of Chinese Milk Vetch and Rice Straw in Double-Cropping Rice Area

Study on the Effects of Reducing Nitrogen Fertilizer: Stabilizing Yield and Carbon Sequestration by Synergistic Utilization of Chinese Milk Vetch and Rice Straw in Double-Cropping Rice Area

Long-term application of Chinese milk vetch return altered the distribution and species of phosphorus associated with soil aggregates in double-rice cropping system

Temporal variation in soil carbon in various paddy soil types in a cold temperate continental monsoon climate

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