Biochar and compost addition increases soil organic carbon content and substitutes P and K fertilizer in three French cropping systems

Nobile, Cécile; Lebrun, Manhattan; Védère, Charlotte; Honvault, Nicolas; Aubertin, Marie-Liesse; Faucon, Michel‐Pierre; Girardin, Cyril; Houot, Sabine; Kervroëdan, Léa; Dulaurent, Anne‐Maïmiti; Rumpel, Cornélia; Houben, David

doi:10.1007/s13593-022-00848-7

Cited by 12 publications

(5 citation statements)

References 93 publications

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“…The results of this study indicated that the biochar types and application rates had significant impacts on the contents and stocks of SOC (Figures 1-4 and Table 2), which align with the results of some previous studies [18,22]. The application of biochar led to an increase in SOC contents and stocks, with a corresponding increase in application rates in the 0-10 cm soil profile, and the effects of the biochar application on SOC decreased with increasing soil depths.…”

Section: Effects Of Biochar Application On Soc Contents and Stocks In...supporting

confidence: 89%

“…Numerous studies have demonstrated that biochar can enhance soil organic matter content, improve soil physical and chemical properties, increase crop yield, and decrease soil greenhouse gas emissions [13][14][15][16][17]. In temperate planting systems, although composite biochar mixtures can replace mineral fertilizers and be directly used for crop growth and development [18], their potential to increase crop yield is relatively small [19]. As tropical soils are highly weathered, nutrient-poor, and have a low pH, biochar correction has more potential to improve soil fertility and quality.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Biochar Types and Rates on SOC and Its Active Fractions in Tropical Farmlands of China

Chen,

Liu,

Shao

et al. 2024

Agronomy

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To date, most studies have shown that biochar has great potential in carbon sequestration and reduction, as well as soil quality improvement. However, there is limited knowledge of its effect on soil organic carbon (SOC) fractions in tropical farmland. This study aimed to determine the impact of different types and rates of biochar applied in tropical farmlands on so SOC and its active fractions. The SOC, microbial biomass carbon (MBC), dissolved organic carbon (DOC), and soil mineralizable carbon (SMC) in the 0–30 cm soil layers under rice hull (R) and peanut shell (P) biochar treatments were measured. The results showed that the application of R and P biochar increased the contents, stocks, and cumulative stocks of SOC, MBC, and DOC in the 0–10 cm, 10–20 cm, and 20–30 cm soil layers. The contents, stocks, and cumulative stocks increased with increasing biochar application rates. Compared with CK, the ranges of the increased SOC, MBC, and DOC cumulative stocks were 10.76–46.36%, 30.04–195.65%, and 0.02–17.03%, respectively. However, the R60 and P60 had the lowest cumulative stocks of SMC, decreasing by 14.69% and 8.05%, respectively. The biochar treatment of more than 20 t ha−1 reduced the ratio of SMC:SOC and active fractions:SOC. Therefore, it can be inferred that the application of biochar improved the levels of SOC, MBC, and DOC, and the application of more than 20 t ha−1 biochar could decrease soil carbon mineralization, thus improving the stability of SOC in tropical farmlands.

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Section: Effects Of Biochar Application On Soc Contents and Stocks In...supporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Biochar Types and Rates on SOC and Its Active Fractions in Tropical Farmlands of China

Chen,

Liu,

Shao

et al. 2024

Agronomy

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“…The significant increase in TOC observed for the treatments with compost and biochar + AD compared to the control without fertilisation is undoubtedly due to the carbon provided by the organic products added to the soil as previously observed by [52] and [63]. The addition of biochar alone to the soil usually increases the TOC because it provides organic carbon [34]; consequently, there is an increase in the TOC value [52].…”

Section: Soil Chemical and Biological Parameterssupporting

confidence: 56%

Improved Organic Fertilisers Made from Combinations of Compost, Biochar, and Anaerobic Digestate: Evaluation of Maize Growth and Soil Metrics

Ortiz-Liébana,

Crespo-Barreiro,

Mazuecos-Aguilera

et al. 2023

Agriculture

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Treated bio-residues can be used as biostimulants in crops within the circular economy approach to reduce the use of traditional fertilisers. In this work, we optimised the combination rates for three types of treated bio-residues (compost, biochar, and anaerobic digestate (AD)) in two microcosm trials, one with a combination of compost and biochar and other with biochar and AD. The crop used was maize, and the variables analysed were plant growth, and soil chemical and biological properties. The combination of bio-residues improved plant growth and soil biological activity to a greater extent than one product alone; that is, compost and biochar performed better than compost alone and biochar, and AD performed better than biochar alone. However, while the concentration in the plant biomass of several essential nutrients for crops increased in the treatments with compost and biochar, and with biochar and AD, compared to the untreated controls, the nitrogen concentration was reduced. This was due to the competition for nitrogen between the plant and the soil microbiome, whose activity was activated. Due to the importance of nitrogen in plant growth, the increase in biomass production could be explained not only by the higher availability of other nutrients but also by the plant-growth-promoting activity exerted by the more active soil microbiome. Further research should focus on validating this hypothesis and unravelling the mechanisms involved. From the environmental site, the presence of biochar in the mixtures of organic residues reduced the soil nitrogen at risk of lixiviation and sequestered carbon, which partially compensated for the increased CO2 emissions because labile forms of carbon were present in the remaining organic residues.

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“…After preparing the eld for planting, fertilizer compounds were applied based on the studied treatments. Bch was mixed with the soil at the rate of 4 tons per hectare [44]. The AMF that was obtained through planting of sorghum with AMF spores was obtained from the soil biology research department of Iran Soil and Water Research Institute.…”

Section: Experiments Executionmentioning

confidence: 99%

Improvement of Nutrient Content, Physiological Traits and Grain Yield of Maize Varieties Grown in Saline Soil by Combining Biochar, Mycorrhizal Fungi and Silicon Foliar Application

Kachouei,

Madandoust,

Dejam

et al. 2024

Silicon

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In the studies that have been conducted on resources that increase tolerance to salt stress, their individual use has often been considered. There is little evidence of their synergistic effects, especially for plants grown in saline soil conditions. In this research, a factorial experiment was conducted in the randomized complete block design in 2020 and 2021. The rst factor was 3 maize varieties including 704, 604 and 370 and the second factor was resources ameliorating the adverse effcts of salinity including control, single, dual and combined use of biochar (Bch), arbuscular mycorrhizal fungus (AMF) and silicon foliar application (SiFA). The results showed that leaves sodium concentration in the combined treatment of Bch + AMF + SiFA decreased by 13% compared to the control. In 704 the concentration of potassium and nitrogen in the combination of Bch + AMF + SiFA respectively showed an increase of 25 and 22% compared to the control. Also, dual consumption of ameliorating resources caused an increase in leaf iron, zinc, copper and manganese. Combined use of ameliorating resources decreased ion leakage and increased the relative water content and the photosynthetic pigments. In 604 and 370, the grain yield was respectively increased by 10 and 18% in the combination of Bch + AMF + SiFA compared to the control. Considering the positive effect of ameliorating resources in improving seed yield and seed oil percentage, the combination of biochar + mycorrhiza + silicon can be recommended under salt stress.

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Biochar and compost addition increases soil organic carbon content and substitutes P and K fertilizer in three French cropping systems

Cited by 12 publications

References 93 publications

Effect of Biochar Types and Rates on SOC and Its Active Fractions in Tropical Farmlands of China

Effect of Biochar Types and Rates on SOC and Its Active Fractions in Tropical Farmlands of China

Improved Organic Fertilisers Made from Combinations of Compost, Biochar, and Anaerobic Digestate: Evaluation of Maize Growth and Soil Metrics

Improvement of Nutrient Content, Physiological Traits and Grain Yield of Maize Varieties Grown in Saline Soil by Combining Biochar, Mycorrhizal Fungi and Silicon Foliar Application

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