Carbon decomposition in broiler litter-amended soils

Sissoko, Alassane; Kpomblekou-A, Kokoasse

doi:10.1016/j.soilbio.2009.10.007

Cited by 32 publications

(25 citation statements)

References 35 publications

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“…Results of correlation analysis show that there were no significant relationships between the textural properties of soils and CO 2 –C emissions in this study. This is opposed to previous findings by authors such as Sissoko and Kpomblekou-A (2010) which attribute finer soil textural components (clay and silt) with higher sorption capacity for soil and biochar-C, and lowered CO 2 emissions due to large surface area of their particles.…”

Section: Discussioncontrasting

confidence: 99%

An investigation of the effect of biochar application rates on CO2 emissions in soils under upland rice production in southern Guinea Savannah of Nigeria

Olaniyan

Isimikalu

Raji

et al. 2020

Heliyon

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Biochar is a chemically recalcitrant carbon-rich solid material used in soil for its potential to improve soil quality and sequester carbon. While the rate of application has implications for soil carbon dioxide (CO 2) emission and the overall benefits of biochar, its effects are yet to be fully understood. To evaluate the effect of application rates of rice husk biochar on CO 2 emissions, 91-day field experiments were conducted on three soil types (Anthraquic Ustorthent, Grossarenic Kandiustalf, and Ustic Quartzipsamment) in the southern Guinea Savannah of Nigeria, using three biochar application rates of 5, 15 and 25 t h À1 , and control. A two-way ANOVA showed that cumulative CO 2 emissions were significantly (p < 0.01) different between soil types and treatments, and soil type/treatment interactions were also significant at p ¼ 0.05. The highest cumulative CO 2-C emission of 2.77g/m 2 was recorded in the Grossarenic Kandiustalf, while the least value of 2.11g/m 2 was recorded in the Ustic Quartzipsamment. CO 2 emission increased with increasing biochar application rates, with the highest (3.06 CO 2-C g/m 2) value recorded at 25 t/ha compared to 2.78 g/m 2 and 1.52 g/m 2 values recorded for 5 t/ha and control treatments respectively. While CO 2 emissions increased with biochar application rate however, the percentage of biochar-C mineralized was higher at lower biochar rates, and differences were significant at p ¼ 0.01. While 0.63 % of biochar C was mineralized under 5 t/ha biochar treatment, 0.15 % was recorded for 25 t/ha treatment. Factors that had significant correlation with CO 2-C emission in the soils were biochar addition rate, soil pH, N, P, Ca, Mg and K. At day 91, there were no significant differences in CO 2 emissions between amended treatments and control, and only a small percentage (<1) of biochar C had been mineralized.

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Section: Discussioncontrasting

confidence: 99%

An investigation of the effect of biochar application rates on CO2 emissions in soils under upland rice production in southern Guinea Savannah of Nigeria

Olaniyan

Isimikalu

Raji

et al. 2020

Heliyon

View full text Add to dashboard Cite

show abstract

“…Sissoko and Kpomblekou-A (2010) [44] indicated that the stabilizing effect of organic matter in soils contributed to the encapsulation between clay particles and entrapment of organic matter in small pores of aggregates, which are inaccessible to microbes. Qauuym et al (2012) [11] revealed that charcoal is considerably more stable in Oxisol than in Alfisol, because Oxisol generally contains higher clay and Fe/Al oxide content.…”

Section: Effect Of Soil Type On Carbon Mineralization With Compost Anmentioning

confidence: 99%

Stabilization of Organic Matter by Biochar Application in Compost-amended Soils with Contrasting pH Values and Textures

et al. 2015

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Food demand and soil sustainability have become urgent concerns because of the impacts of global climate change. In subtropical and tropical regions, practical management that stabilizes and prevents organic fertilizers from rapid decomposition in soils is necessary. This study conducted a short-term (70 days) incubation experiment to assess the effects of biochar application on the decomposition of added bagasse compost in three rural soils with different pH values and textures. Two rice hull biochars, produced through slow pyrolization at 400 °C (RHB-400) and 700 °C (RHB-700), with application rates of 1%, 2%, and 4% (w/w), were separately incorporated into soils with and without compost (1% (w/w) application rate). Experimental results indicated that C mineralization rapidly increased at the beginning in all treatments, particularly in those involving 2% and 4% biochar. The biochar addition increased C mineralization by 7.9%-48% in the compost-amended soils after 70 days incubation while the fractions of mineralized C to applied C significantly decreased. Moreover, the estimated maximum of C mineralization amount in soils treated with both compost and biochar were obviously lower than expectation calculated by a double exponential model (two pool model). Based on the micromorphological observation, added compost was wrapped in the soil aggregates formed after biochar application and then may OPEN ACCESS Sustainability 2015, 7 13318 be protected from decomposing by microbes. Co-application of compost with biochar may be more efficient to stabilize and sequester C than individual application into the studied soils, especially for the biochar produced at high pyrolization temperature.

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“…Research on reducing CO 2 emissions, enhancing soil fertility, and increasing crop yields will become increasingly popular [3]. Chelation of C as biochar in the soil enables the increasing of soil fertility [17] and organic matter content, and the alleviating of repeated crop planting risk [18]. Biochar and other amendments favor carbon sequestration because they are made by waste that would normally be incinerated and emit gases and CO 2 into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Research and Application of Biochar in Soil CO2 Emission, Fertility, and Microorganisms: A Sustainable Solution to Solve China’s Agricultural Straw Burning Problem

et al. 2020

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This study aimed to explore a new way to address the burning of agricultural waste in China while achieving the sustainable use of it. Three agricultural wastes (Wheat straw, peanut shell, and rice husk) were slowly pyrolyzed into biochar, which was subsequently added to the soil to reduce CO2 emissions from the soil, and to improve soil fertility as well as microbial community structure. The biochar and raw materials were added to the soil and cultured under controlled conditions, and then the CO2 emissions produced from the mixing. At the same time, this study used pot experiments to determine the effects of biochar on tobacco soil physical and chemical properties and, therefore, the microbial communities of the soil. This study suggests that (1) biochar can effectively reduce soil CO2 emission rate. Compared with the control, peanut shell biochar could reduce the total CO2 emissions of soil by 33.41%, and the total CO2 emissions of wheat straw biochar treatment was 90.25% lower than that of wheat straw treatment. (2) The soil’s physical and chemical properties were improved. The soil bulk density of wheat straw biochar treatment kept 34.57% lower than that of the control as well as 21.15% lower than that of wheat straw treatment. The soil’s organic carbon of peanut shell biochar treatment was 87.62% more than that of peanut shell treatment. (3) Biochar changed soil microbial community structure. (4) Biochar is suitable for tobacco growth. Peanut husk biochar significantly increased the total biomass of tobacco, and wheat straw biochar significantly increased tobacco root vigor. This study concluded that processing Chinese agricultural waste into biochar and adding it to the soil instead of burning it directly would be an effective means to reduce greenhouse gas emissions, to improve soil, and to promote crop growth.

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Carbon decomposition in broiler litter-amended soils

Cited by 32 publications

References 35 publications

An investigation of the effect of biochar application rates on CO2 emissions in soils under upland rice production in southern Guinea Savannah of Nigeria

An investigation of the effect of biochar application rates on CO2 emissions in soils under upland rice production in southern Guinea Savannah of Nigeria

Stabilization of Organic Matter by Biochar Application in Compost-amended Soils with Contrasting pH Values and Textures

Research and Application of Biochar in Soil CO2 Emission, Fertility, and Microorganisms: A Sustainable Solution to Solve China’s Agricultural Straw Burning Problem

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