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- Title
Microbiological Properties in Cropping Systems and Their Relationship with Water Erosion in the Brazilian Cerrado.
- Authors
Merlo, Marina Neves; Avanzi, Junior Cesar; Silva, Lucas de Castro Moreira da; Aragão, Osnar Obede da Silva; Borghi, Emerson; Moreira, Fatima Maria de Souza; Thebaldi, Michael Silveira; Resende, Álvaro Vilela de; Silva, Marx Leandro Naves; Silva, Bruno Montoani
- Abstract
Many researchers have reported relationships of physical and chemical properties with water erosion; however, little is known about microbiological properties in this context. Thus, the aim of this study was to evaluate soil properties in relation to erosion in areas with different cropping system practices under no-tillage in the Brazilian Cerrado. The experiment has been carried out since 2014 in a Typic Haplustox under soybean (S) and maize (M) monoculture, maize/soybean annual rotation (MS), maize/brachiaria/soybean/brachiaria rotation (MBSB), two of those treatments with high input of fertilizer (MBSB-HI and MS-HI), and bare soil (BS). Soil losses were quantified in erosion plots. The design was completely randomized. The greater vegetation cover crop, provided by intercropping/succession with brachiaria, increased microbial biomass carbon. The lack of vegetation cover affected the basal soil respiration and metabolic quotient. Basal soil respiration proved to be inversely related to soil and water losses. Vegetation cover was a key factor regulating water erosion. Penetration resistance and aggregate stability correlated with soil and water losses. Thus, not only physical and chemical, but also biological properties are deeply affected by erosion, aiding in early monitoring of water erosion. Soil quality improvement in ecologically supported management contributes to mitigating erosion.
- Subjects
CROPPING systems; NO-tillage; EROSION; SOIL erosion; SOIL respiration; COVER crops; GROUND vegetation cover
- Publication
Water (20734441), 2022, Vol 14, Issue 4, p614
- ISSN
2073-4441
- Publication type
Article
- DOI
10.3390/w14040614