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Article

Physicochemical Changes in Loam Soils Amended with Bamboo Biochar and Their Influence in Tomato Production Yield

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School of Agricultural Engineering, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
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School of Chemistry, Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
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Centro de Investigación y de Servicios Químicos y Microbiológicos (CEQIATEC), Instituto Tecnológico de Costa Rica, Cartago 159-7050, Costa Rica
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Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma Group (GI-1645), Facultad de Farmacia and Health Research, Institute of Santiago de Compostela (IDIS), Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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Institute for Plant Nutrition and Soil Science, Christian-Albrechts University Kiel, Hermann Rodewaldstr. 2, 24118 Kiel, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Lukas Trakal
Agronomy 2021, 11(10), 2052; https://doi.org/10.3390/agronomy11102052
Received: 7 August 2021 / Revised: 6 October 2021 / Accepted: 7 October 2021 / Published: 13 October 2021
Soil degradation and water stress in Costa Rica challenge the production of highly sensitive crops. This work is aimed at evaluating the physical and chemical changes in sandy loam (SL) and a silt loam (SiL) soil when amended with bamboo biochar while estimating the enhancement of tomato productivity. Biochar, obtained from Guadua Angustifolia bamboo feedstock, was mixed into sieved bulk soil substrate from the topsoil, from Andosol and Umbrisol groups, at application rates of 1, 2.5, and 5% (dry mass). Physicochemical and morphological properties of biochar such as pH, hydrophobicity, scanning electron microscopy images, helium picnometry, specific surface area by the Brunauer–Emmett–Teller (BET) method, CHNS, and ash content were determined. Soil hydrophobicity, acidity, electrical conductivity, cation exchange capacity and water retention, available water content, and air capacity were analyzed for the amended soils. Tomato yield was quantified after a harvest period of two months. The admixture of biochar did not significantly increase soil cation exchange capacity but increased water retention in the range of available water content. Class A (>200 g) tomato yield increased 350% in the SL and 151% in the SiL. Class B (100–200 g) tomato yields increased 27% in the SL but decreased about 30% in the SiL. Tomato yield response seems attributable to variation of water retention capacity, available water content, and air capacity. These results support the use of adapted water management strategies for tomato production based on soil physical changes of biochar. View Full-Text
Keywords: bamboo biochar; loam soil; particle size distribution; available water content; air capacity; soil physical quality indexes; tomato yield bamboo biochar; loam soil; particle size distribution; available water content; air capacity; soil physical quality indexes; tomato yield
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MDPI and ACS Style

Villagra-Mendoza, K.; Masís-Meléndez, F.; Quesada-Kimsey, J.; García-González, C.A.; Horn, R. Physicochemical Changes in Loam Soils Amended with Bamboo Biochar and Their Influence in Tomato Production Yield. Agronomy 2021, 11, 2052. https://doi.org/10.3390/agronomy11102052

AMA Style

Villagra-Mendoza K, Masís-Meléndez F, Quesada-Kimsey J, García-González CA, Horn R. Physicochemical Changes in Loam Soils Amended with Bamboo Biochar and Their Influence in Tomato Production Yield. Agronomy. 2021; 11(10):2052. https://doi.org/10.3390/agronomy11102052

Chicago/Turabian Style

Villagra-Mendoza, Karolina, Federico Masís-Meléndez, Jaime Quesada-Kimsey, Carlos A. García-González, and Rainer Horn. 2021. "Physicochemical Changes in Loam Soils Amended with Bamboo Biochar and Their Influence in Tomato Production Yield" Agronomy 11, no. 10: 2052. https://doi.org/10.3390/agronomy11102052

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