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Your search keyword '"Sánchez-Rodríguez, Antonio R."' showing total 18 results
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18 results on '"Sánchez-Rodríguez, Antonio R."'

1. Photocatalytic fixation of NOx in soils

Author

Sánchez-Rodríguez, Antonio R., Gómez-Álvarez, Elena, Méndez, José M., Skiba, Ute M., Jones, Davey L., Chadwick, Dave R., del Campillo, María C., Fernandes, Raphael BA., Kleffmann, Jörg, and Barrón, Vidal

Published
2023
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4. Photochemical emission and fixation of NOX gases in soils

Author

Barrón, Vidal, Méndez, José M., Balbuena, José, Cruz-Yusta, Manuel, Sánchez, Luis, Giménez, Carmen, Sacristán, Daniel, González-Guzmán, Adrián, Sánchez-Rodríguez, Antonio R., Skiba, Ute M., Inda, Alberto V., Marques, José, Jr., Recio, José M., Delgado, Antonio, del Campillo, María C., and Torrent, José

Published
2020
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15. Photochemical emission and fixation of NOX gases in soils

Author

Universidad de Sevilla. Departamento de Agronomía, Barrón, Vidal, Méndez, Jose M., Balbuena, José, Cruz Yusta, Manuel, Sánchez, Luis, Giménez, Carmen, Sacristán , Daniel, González-Guzmán, Adrián, Sánchez-Rodríguez, Antonio R., Skiba, Ute M., Inda, Alberto V., Marques, José, Recio, José M., Delgado García, Antonio, Campillo, María C. del, Torrent, José, Universidad de Sevilla. Departamento de Agronomía, Barrón, Vidal, Méndez, Jose M., Balbuena, José, Cruz Yusta, Manuel, Sánchez, Luis, Giménez, Carmen, Sacristán , Daniel, González-Guzmán, Adrián, Sánchez-Rodríguez, Antonio R., Skiba, Ute M., Inda, Alberto V., Marques, José, Recio, José M., Delgado García, Antonio, Campillo, María C. del, and Torrent, José

Abstract

Gaseous nitrogen oxides (NOx), which result from the combustion of fossil fuels, volcanic eruptions, forest fires, and biological reactions in soils, not only affect air quality and the atmospheric concentration of ozone, but also contribute to global warming and acid rain. Soil NOx emissions have been largely ascribed to soil microbiological processes; but there is no proof of abiotic catalytic activity affecting soil NO emissions. We provide evidence of gas exchange in soils involving emissions of NOx by photochemical reactions, and their counterpart fixation through photocatalytic reactions under UV–visible irradiation. The catalytic activity promoting NOx capture as nitrate varied widely amongst different soil types, from low in quartzitic sandy soils to high in iron oxide and TiO2 rich soils. Clay soils with significant amounts of smectite also exhibited high rates of NOx sequestration and fixed amounts of N comparable to that of NO (nitric oxide) losses through biotic reactions. In these soils, a flux of 100 mg NNO m2 h1 , as usually found in most ecosystems, could be reduced by these photochemical reactions by more than 60%. This mechanism of N fixation provides new insight into the nitrogen cycle and may inspire alternative strategies to reduce NO emissions from soils.

Published
2019

17. Chromium from Hydrolyzed Leather Affect Soybean Growth and Nodulation

Author

BAVARESCO, Jovana, FINK, Jessé R., MORAES, Moacir T., SÁNCHEZ-RODRÍGUEZ, Antonio R., and ANGHINONI, Ibanor

Abstract

Hydrolyzed leather is an organic nitrogenous fertilizer with a high chromium (Cr) content obtained from industrial leather waste. Soybean crops can be adversely affected by the presence of residual Cr present in soil after application of hydrolyzed leather fertilizer. The aim of this work was to assess the effect of hydrolyzed leather on Cr absorption, root development and symbiotic nodulation of soybean plants grown on three different soils including two Lixisols and a Gleysol. These soils were previously fertilized with hydrolyzed leather at three different rates (viz., 0, 0.1 and 0.8 kg m−2). Soybean shoot height, root growth, nodulation and mineral nutrient concentrations in plant tissues were determined after 45 days of crop. The application of hydrolyzed leather significantly increased Cr contents in soil and Cr uptake by plants. Surprisingly, Cr was stored mainly in the aerial part of the plants. The presence of Cr had an adverse impact on shoot dry matter (41% reduction) and number of nodules (49% reduction) per plant grown on the soil with the lowest cation exchange capacity. However, no other significant effect was observed in nodule weight, diameter, or in any other measured parameters.

Published
2024
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