Pedosphere 30(5): 597--606, 2020
ISSN 1002-0160/CN 32-1315/P
©2020 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Volatile organic compound emission and biochemical properties of degraded Ultisols ameliorated by no tillage and liming |
Laura GIAGNONI1 , Cosimo TAITI1, Paloma LEÓN2, Corrado COSTA3, Paolo MENESATTI3, Rafael ESPEJO2, Clara GÓMEZ-PACCARD2, Chiquinquirá HONTORIA2, Eduardo VÁZQUEZ4, Marta BENITO2, Stefano MANCUSO1, Giancarlo RENELLA5 |
1Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, P.le delle Cascine 18, Florence 50144 (Italy)
2Departamento de Producción Agraria, E.T.S.I. Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Avda. Complutense s/n, Madrid 28040 (Spain)
3Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria (CREA)-Unità di Ricerca per l'Ingegneria Agraria, via della Pascolare 16, Monterotondo Scalo, RM 00015 (Italy)
4Department of Soil Biogeochemistry and Soil Ecology, University of Bayreuth, Dr. Hans-Frisch-Straße 1-3, Bayreuth 95448 (Germany)
5University of Padua, Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), Viale dell'Università 16, Legnaro 35020 (Italy) |
| Corresponding Author:Laura GIAGNONI |
| ABSTRACT |
| The Ultisols in the Raña de Cañamero area in Southwest Spain showed aluminum (Al) phytotoxicity, and the clearance of natural vegetation and decades of intensive conventional agriculture caused the deplation of soil organic matter (SOM). Therefore, we studied the long-term effects of no tillage and liming using sugar beet foam (SF) and red gypsum (RG), alone or in combination, on the restoration of Ultisols affected by acidification, Al phytotoxicity, and SOM depletion. We measured the main soil chemical properties, soil microbial biomass, soil enzyme activities involved in carbon, nitrogen, phosphorus, and sulfur mineralization, and the emission of volatile organic compounds (VOCs). The results indicated that liming effectively neutralized the soil acidity in the long term and, in combination with no tillage, significantly increased soil microbial biomass and enzyme activities. Twenty-three VOCs were detected using the proton transfer reaction-time of flight (PTR-ToF) technique, and both liming and tillage changed the VOC emission patterns. The greatest difference in VOC emission pattern was observed between no-tilled un-amended soils and tilled lime-amended soils, suggesting the activation of different metabolic pathways within the microbial communities of soils under different management. Differences in VOC emission patterns could be attributed to the decomposition of carbohydrates, which were also sustained by the higher enzyme activities in the lime-amended soils. |
| Key Words: carbohydrate decomposition,degraded soils,long-term field trial,soil acidity,soil enzyme activities,soil microbial biomass,soil restoration |
| Citation: Giagnoni L, Taiti C, León P, Costa C, Menesatti P, Espejo R, Gómez-Paccard C, Hontoria C, Vázquez E, Benito M, Mancuso S, Renella G. 2020. Volatile organic compound emission and biochemical properties of degraded Ultisols ameliorated by no tillage and liming. Pedosphere. 30(5):597-606. |
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