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Agricultural Utilization of Biochar: A Review of Production Technologies Texto completo
2025
Ammal Abukari | James Seutra Kaba | Akwasi Adutwum Abunyewa
Biochar production has gained significant attention lately due to its potential to sequester carbon, improve soil fertility and mitigate climate change. Various production technologies have been developed to convert biomass into biochar, each with its unique characteristics and advantages. This review provides a comprehensive overview of the current biochar production technologies aiming to synthesize existing knowledge and identify research gaps with a focus on their potential to contribute to the United Nations Sustainable Development Goals (SDGs) 2, 12, 13 and 15. The scope of this review encompasses various biochar production techniques including slow pyrolysis, fast pyrolysis, gasification and torrefaction. The effects of production conditions such as temperature, residence time, and feedstock types on biochar properties and yields are discussed. The prospects of using biochar in the agricultural system were discussed. Additionally, challenges and opportunities associated to scaling up biochar production technologies are highlighted. The findings of this review have implications for the development of sustainable biochar production practices and environmental management strategies.
Mostrar más [+] Menos [-]Agricultural Utilization of Biochar: A Review of Production Technologies Texto completo
2025
Ammal Abukari | James Seutra Kaba | Akwasi Adutwum Abunyewa
Biochar production has gained significant attention lately due to its potential to sequester carbon, improve soil fertility and mitigate climate change. Various production technologies have been developed to convert biomass into biochar, each with its unique characteristics and advantages. This review provides a comprehensive overview of the current biochar production technologies aiming to synthesize existing knowledge and identify research gaps with a focus on their potential to contribute to the United Nations Sustainable Development Goals (SDGs) 2, 12, 13 and 15. The scope of this review encompasses various biochar production techniques including slow pyrolysis, fast pyrolysis, gasification and torrefaction. The effects of production conditions such as temperature, residence time, and feedstock types on biochar properties and yields are discussed. The prospects of using biochar in the agricultural system were discussed. Additionally, challenges and opportunities associated to scaling up biochar production technologies are highlighted. The findings of this review have implications for the development of sustainable biochar production practices and environmental management strategies.
Mostrar más [+] Menos [-]Farmers Utilization of Climate Change Adaptation Strategies Across Selected Agro-Ecological Zones in Nigeria Texto completo
2021
Olufunmilayo Grace Adenaiye | Simeon Dada yomi Alfred | Oluwatosin Oluwasegun Fasina
Farmers Utilization of Climate Change Adaptation Strategies Across Selected Agro-Ecological Zones in Nigeria Texto completo
2021
Olufunmilayo Grace Adenaiye | Simeon Dada yomi Alfred | Oluwatosin Oluwasegun Fasina
This study examined farmers’ level of use of climate change adaptation strategies across selected agro-ecological zones in Nigeria. Edo and Ondo States were selected for the study with three major agro-ecological zones. A multi-stage sampling procedure was used. The correlation analysis revealed a significant relationship between year of education and level of use of adaptation strategies (r = 0.15, P = 0.02). The result of Analysis of Variance (ANOVA) revealed that significant differences existed in most of the adaptation strategies employed except planting different varieties (F = 1.672, P = 0.190), intercropping (F = 0.646, P = 0.525), crop rotation (F = 2.436, P = 0.090) and migration to different sites (F = 0.661, P = 0.517). The study recommended that the issue of climate change should not be taken lightly by all stakeholders as its effect differs among various agro-ecological zones.
Mostrar más [+] Menos [-]Densidades de siembra de dos variedades comerciales de crisantemo, Chrysantemum morifolium Ramat en Piendamo (Cauca) Texto completo
1986
Prieto C., Emilse | Escobar G., Jorge A. | Posada D., Adolfo
The behavior and agricultural characteristics of two kinds of Chrysanthemum (White Marble and Yellow Polaris) were evaluated in terms of yield and quality of the product. Two different kinds of planting systems were applied (single stem and pinched stem). The experimental design in randomized whole blocks for each variety and system including four density treatments (80, 90, 110 and 115 sterns per 1.05 m2) was repeated six times. The experimental unit was of 2.10 m2; 1.26 m2 were harvested. A strong discrepancy between the quantity and quality of the product was observed. The highest yields were obtained with densities of 110 and 115 stems per 1.05 m2. However, the experimental units dis not always met both requirements of a diameter greater than seven cm and three or more marketable flowers per stem. If maximizing production of acceptable bunches is taken as a decision variable, a density of 90 sterns per 1.05 m2 with a 3/3/2/2/2/3/3 arrangement with pinched stern for Yellow Polar is seems a better alternative. As for White Marble, it would be better to have 80 stems per 1.05 m2 with a 3/2/2/2/2/2/3 arrangement in the single stem, but the probability of acceptance is only 0.666. In addition, White Marble showed more susceptibility to dwarfism. | Se evaluó el comportamiento y características agronómicas asociadas con el rendimiento y la calidad del producto en las variedades White Marble y Yellow Polaris, en los sistemas de tallo único y tallo despuntado. El diseño experimental de bloques completos al azar para cada variedad y sistema incluía cuatro tratamientos de densidad (80, 90, 110 Y 115 tallos por 1.05 m2), con seis repeticiones. La unidad experimental fue de 2.10 m2, cosechando 1. 26m2(1.05 x 1.20). Se observó marcado antagonismo entre la cantidad y la calidad del producto comercial. Los mayores rendimientos se obtuvieron con densidades de 110 y 115 tallos por 1.05 m2, pero no siempre la producción cumplía con los requisitos de diámetro de la flor mayor de siete cm y tres ó más flores comerciales por tallo. Tomando como criterio de decisión maximizar la producción de ramos aceptables, se considera como mejor alternativa en la variedad Yellow Polaris la densidad de 90 tallos por 1.05 m2 en un arreglo 3/3/2/2/2/3/3 y con el sistema de tallo despuntado. Para White Marble sería preferible 80 tallos por 1_05 m2, con un arreglo 3/2/2/2/2/2/3 en el sistema de tallo único; pero la probabilidad de aceptación fue de sólo 0.666 y además presentó más susceptibilidad al enanismo.
Mostrar más [+] Menos [-]Farmers Utilization of Climate Change Adaptation Strategies Across Selected Agro-Ecological Zones in Nigeria Texto completo
2021
Olufunmilayo Grace Adenaiye | Simeon Dada yomi Alfred | Oluwatosin Oluwasegun Fasina
This study examined farmers’ level of use of climate change adaptation strategies across selected agro-ecological zones in Nigeria. Edo and Ondo States were selected for the study with three major agro-ecological zones. A multi-stage sampling procedure was used. The correlation analysis revealed a significant relationship between year of education and level of use of adaptation strategies (r = 0.15, P = 0.02). The result of Analysis of Variance (ANOVA) revealed that significant differences existed in most of the adaptation strategies employed except planting different varieties (F = 1.672, P = 0.190), intercropping (F = 0.646, P = 0.525), crop rotation (F = 2.436, P = 0.090) and migration to different sites (F = 0.661, P = 0.517). The study recommended that the issue of climate change should not be taken lightly by all stakeholders as its effect differs among various agro-ecological zones.
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