A quantitative understanding of the role of co-composted biochar in plant growth using meta-analysis

Wang, Yuchuan; Villamil, María B.; Davidson, Paul C.; Akdeniz, Neslihan

doi:10.1016/j.scitotenv.2019.06.244

Cited by 121 publications

(75 citation statements)

References 98 publications

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“…For example, Schulz et al [46] and Agegnehu et al [47] have found positive impact of the co-composted biochar on soil fertility mostly due to the supply of organic C and nutrients to the soil, but other researchers have not found any synergistic effect of the combination of biochar and compost on plant growth. Other authors [48,49] have recently reviewed the impact of co-composted biochar in plant growth and concluded that the improved plant growth was triggered by the addition of compost rather than the biochar.…”

Section: Biochar For Compostingmentioning

confidence: 99%

Role of biochar in promoting circular economy in the agriculture sector. Part 2: A review of the biochar roles in growing media, composting and as soil amendment

Jindo

Sánchez-Monedero

Mastrolonardo

et al. 2020

Chem. Biol. Technol. Agric.

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Biochar is utilized in modern society for multiple agricultural and environmental purposes in the framework of circular economy. The aims of this study were to review the leading edge of knowledge of studies where biochar was used in the agriculture sector, as an input for growing media, composting and to improve soil physical and chemical properties along with crop yield. Usage of biochar is promising as substitute for peat and in the composting as it reduces N losses, accelerates the process and improves the quality of final composts. The right selection of feedstock and optimization of pyrolysis conditions are key factors to tailor biochar thereby improving soil properties and increasing crop yield. Potential benefits and flaws for the usage of biochar technology in the agricultural domain are broadly reviewed and thoroughly discussed.

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Section: Biochar For Compostingmentioning

confidence: 99%

Role of biochar in promoting circular economy in the agriculture sector. Part 2: A review of the biochar roles in growing media, composting and as soil amendment

Jindo

Sánchez-Monedero

Mastrolonardo

et al. 2020

Chem. Biol. Technol. Agric.

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“…Discrepancies in nutrient content between biochar feedstocks call for the mixture of different available feedstocks as a possible alternative (Nair et al, 2017). Biochars with high C/N ratio, such as those from plant-based feedstocks (Table 2), still have the potential to act as a soil conditioner and to enhance N use efficiency when mixed with animal manure (Steiner et al, 2008(Steiner et al, , 2015Wang et al, 2019), and should still be considered despite low nutritional value. Nair et al (2017) suggest a mixture of different available feedstocks could be very important under smallholder farming systems, that can utilize agricultural residues to create a valuable product to achieve sustainable crop production.…”

Section: Other Physical and Chemical Properties Of Biocharsmentioning

confidence: 99%

Biochar as Influenced by Feedstock Variability: Implications and Opportunities for Phosphorus Management

Freitas

Nair

Harris

2020

Front. Sustain. Food Syst.

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Agricultural wastes from plant and animal operations are often land applied to recycle and manage residues. Compositional variability among these wastes is vast. Some waste components can potentially represent a threat to the environment and humans depending on their nature, application loads, and soil type. Biochar, the product obtained by biomass heating under oxygen-limited conditions, has the potential to minimize risks associated with waste characteristics while promoting soil health. However, variation in the residue wastes (feedstocks) used to produce biochar carries over to the resultant biochar. In this study, we compare the chemistry and composition of biochars representing two broadly defined sources-animal (poultry litter, biosolids) and plant (mixed hardwoods, pure maple, pine)-and highlight phosphorus (P) management implications and opportunities presented by the variability among them. We also evaluate P leaching patterns of four selected biochars (poultry litter, biosolids, hardwoods, and maple) as applied at an identical rate (1% w/w) to two soils differing in P retention capacities. Cumulative P release following poultry litter biochar application and 20 leaching events was much lower for the more P retentive soil. Total P release from biochar-amended soils did not differ between soils when biochar from biosolids or from plant sources were used as the soil amendment. However, the biosolids-biochar released higher levels of P initially from the Candler compared with the Apopka (more P retentive than the Candler) soils, similar to that of poultry litter biochar. Compositional variations in feedstocks and resultant biochars must be understood in order to judiciously use them as crop nutrient amendments. There is potential to minimize nutrient deficiencies and environmental liabilities of biochars by matching feedstocks, or mixtures of feedstocks, to the needs of specific crops, and by considering the P retentive capacity of the soil where the biochar is applied.

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“…El efecto alcalinizante de enmiendas orgánicas a menudo se ha registrado como uno de los principales mecanismos responsables del aumento de los rendimientos de los cultivos en suelos ácidos, además del mejoramiento de otras propiedades físicas, químicas y biológicas del suelo, que favorecen el desarrollo radical (Kätterer et al, 2019;Wang et al, 2019). En este mismo contexto, se ha comprobado que la aplicación de enmiendas cálcicas además de reducir la acidez del suelo, genera otros beneficios directos como el incremento en la concentración de bases, disponibilidad de nutrientes, fijación simbiótica de N2 y reducción de iones tóxicos para las plantas como Al, Fe y Mn, lo que finalmente se traduce en el incremento del crecimiento radical y rendimiento de los cultivos (Li et al, 2018;Ameyu et al 2019).…”

Section: Enmiendasunclassified

Efectividad de enmiendas sobre el crecimiento y rendimiento de fréjol común en suelo andisol ácido

et al. 2020

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El objetivo de la investigación fue evaluar el efecto de varias enmiendas sobre el crecimiento y rendimiento del fréjol común en un suelo andisol ácido de la zona de Santo Domingo de los Tsáchilas, Ecuador. Los tratamientos evaluados fueron T1 (Humus +harina de rocas), T2 (Humus + dolomita), T3 (Compost +harina de rocas), T4 (Compost + dolomita), T5 (Gallinaza +harina de rocas), T6 (Gallinaza + dolomita), T7(Fertilización convencional) y T8 (Control). El diseñoutilizado fue de bloques completos al azar con tres repeticiones. Las principales variables registradas fueron peso seco de planta (g), rendimiento de grano (kg ha-1) y pH del suelo. Los tratamientos de enmiendas influenciaron significativamente (p<0,05) el peso seco de planta, el rendimiento de grano y el pH del suelo. Los tratamientos más efectivos fueron las combinaciones de dolomita + gallinaza, compost y humus, que incrementaron el crecimiento en términos de peso seco en 22, 27 y 31%, respectivamente, en relación al tratamiento control. El mayor incremento en rendimiento de granos también fue alcanzado con dolomita + gallinaza, compost y humus, con 21, 28 y 30%, respectivamente, en relación al tratamiento testigo. El pH del suelo fue elevado hasta 5,74; 5,76 y 5,85 con dolomita + gallinaza, compost y humus, respectivamente. La aplicación de enmiendas alcalinizantes debe ser una práctica común para potenciar crecimiento, rendimiento y respuesta a la fertilización del frejol común en suelos andisoles ácidos.

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A quantitative understanding of the role of co-composted biochar in plant growth using meta-analysis

Cited by 121 publications

References 98 publications

Role of biochar in promoting circular economy in the agriculture sector. Part 2: A review of the biochar roles in growing media, composting and as soil amendment

Role of biochar in promoting circular economy in the agriculture sector. Part 2: A review of the biochar roles in growing media, composting and as soil amendment

Biochar as Influenced by Feedstock Variability: Implications and Opportunities for Phosphorus Management

Efectividad de enmiendas sobre el crecimiento y rendimiento de fréjol común en suelo andisol ácido

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