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Melo W, Delarica D, Guedes A, Lavezzo L, Donha R, de Araújo A, de Melo G, Macedo F. Ten years of application of sewage sludge on tropical soil. A balance sheet on agricultural crops and environmental quality. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1493-1501. [PMID: 30189565 DOI: 10.1016/j.scitotenv.2018.06.254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/20/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Sewage sludge (SS) has been used in agriculture on a large scale in Europe. In tropical climate conditions, due to rapid organic matter degradation, SS can provide toxic elements that can cause damage to the environment. We evaluated an area that received doses of SS for 10 years compared to mineral fertilization. The biogeochemical parameters (amylase, cellulase, invertase and dehydrogenase activity, carbon microbial biomass, basal respiration, metabolic quotient, soluble carbohydrates, total carbohydrates and glucose) and maize agronomic performance were evaluated. There was no increase of organic matter in the area due to the SS application. However, the application of SS for 10 consecutive years influenced the biogeochemical parameters evaluated in a similar way to the area that received mineral fertilizer. The SS proved efficient in completely replacing P fertilization and micronutrients. SS can also partially replace N fertilization without reducing maize productivity.
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Affiliation(s)
- Wanderley Melo
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil; Brazil University, University Campus Descalvado - Hilário da Silva Passos Avenue, 950 - University Park, Descalvado, SP, Brazil
| | - Denise Delarica
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil.
| | - Ana Guedes
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil.
| | - Letícia Lavezzo
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil
| | - Riviane Donha
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil
| | - Ademir de Araújo
- Soil Quality Laboratory, Agricultural Science Center, Federal University of Piauí, 64000-000 Teresina, Brazil.
| | - Gabriel de Melo
- Brazil University, University Campus Descalvado - Hilário da Silva Passos Avenue, 950 - University Park, Descalvado, SP, Brazil
| | - Fernando Macedo
- São Paulo State University (Unesp), School of Agricultural and Veterinarian Sciences, Path of Access Prof. Paulo Donato Castellane, Km 5, 14884-900 Jaboticabal, SP, Brazil
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