136 results

Soil quality indicators for monitoring the short-term effects of mined soil rehabilitation strategies for bauxite

Douglas Monteiro Cavalcante ORCID logo , Ivo Ribeiro da Silva ORCID logo , Teógenes Senna de Oliveira ORCID logo

22/mar/2023

ABSTRACT Mining is a significant driver of soil mobilization, which impacts its physical, chemical, and biological properties. Changes in land-use affect the distribution of organic matter fractions in stable aggregates, a process that is still poorly understood, especially in drastically altered areas. Recovering and monitoring soil quality to ensure the sustainable development of agricultural crops in these areas after mining is challenging. This study aimed to evaluate the influence of agronomic practices in soil rehabilitation in a bauxite-mined area after […]

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Chemical, physical, and biological properties of soil with pastures recovered by integration crop-livestock system in Eastern Amazon

Carlos Augusto Rocha de Moraes Rego ORCID logo , Paulo Sérgio Rabello de Oliveira ORCID logo , Luciano Cavalcante Muniz ORCID logo , Jean Sérgio Rosset ORCID logo , Eloisa Mattei ORCID logo , Bruna Penha Costa ORCID logo , [...]

21/mar/2023

ABSTRACT Soil quality can be understood as its capacity to provide several essential services within the ecosystem and has been used to understand the impact of different managements, providing information that proves the benefits and your maintenance of the agroecosystem. To understand the impact of different managements, this study aimed to compare the chemical, physical, and biological soil properties in pasture areas managed with different recovery times in an integrated crop-livestock system about perennial pastures and secondary forest. The following […]

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Climate-smart agriculture and soil C sequestration in Brazilian Cerrado: a systematic review

Dener Márcio da Silva Oliveira ORCID logo , Rose Luiza Moraes Tavares ORCID logo , Arcângelo Loss ORCID logo , Beata Emoke Madari ORCID logo , Carlos Eduardo Pellegrino Cerri ORCID logo , Bruno Jose Rodrigues Alves ORCID logo , [...]

06/mar/2023

ABSTRACT Climate-smart agriculture (CSA) practices, mainly no-tillage (NT), cover cropping (CC), soil fertilization with organic amendments (OA), and crop-livestock (CL) and crop-livestock-forestry (CLF) systems, has been widely adopted in areas from Brazilian Cerrado. The CSA may partly offset former soil C losses and contribute to climate change mitigation. However, contradictory findings brought uncertainties about the effect of CSA on soil C. Here, by a systematic review of 87 papers and using 621 data pairs, we provided a pervasive biome-scale analysis […]

Stability, labile organic carbon, and glomalin of biogenic aggregates in sandy soils under management systems in the subtropical region of Brazil

Luiz Alberto da Silva Rodrigues Pinto ORCID logo , Cristiane Figueira da Silva ORCID logo , Thadeu Rodrigues de Melo ORCID logo , Jean Sérgio Rosset ORCID logo , Marcos Gervasio Pereira ORCID logo

21/nov/2022

ABSTRACT Soil aggregates and their stability affect a wide range of soil properties. This study aimed to (a) verify whether biogenic aggregation provides higher macro- and microaggregate stabilization, and (b) evaluate whether biogenic aggregates are associated with higher labile organic carbon and glomalin contents. Three management systems were evaluated (permanent pasture, PP; no-tillage system, NT; and no-tillage + Brachiaria system, NT+B) as well as a reference area (Atlantic Forest biome vegetation, NF). According to their origin or formation pathway, the […]

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Phosphorus lability in a subtropical Acrisol under long-term integrated crop-livestock system: impacts of grazing management and cropping system

Júlia de Assis ORCID logo , Luciano Pinzon Brauwers ORCID logo , Lóren Pacheco Duarte ORCID logo , Gian Ghisleni ORCID logo , Tales Tiecher ORCID logo , Paulo César de Faccio Carvalho ORCID logo , [...]

28/out/2022

ABSTRACT Studies on lability of soil phosphorus (P) under integrated crop-livestock systems (ICLS) are still scarce, especially for deep soil layers (more than 0.20 m depth) and different managements in the crop and livestock phase. Distinct management in these phases may lead to a different distribution of soil P pools according to its lability (labile, moderately labile, less labile and residual) and, consequently, the P availability for plant nutrition. This study aimed to determine the soil P pools, by P […]

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Chemical features of floodplain soils under different land-uses in the Solimões/Amazon River basin

Sonia Sena Alfaia ORCID logo , Marta Iria da Costa Ayres ORCID logo , Acácia Lima Neves ORCID logo , Katell Uguen ORCID logo , Robert Pritchard Miller ORCID logo , Juan Daniel Villacis Fajardo ORCID logo , [...]

22/jun/2022

ABSTRACT Most studies regarding the impacts of agricultural systems on soils of the Amazon region of Brazil have been carried out on upland soil, locally known as terra firme. Information regarding the impacts of different land-use systems on floodplain soil properties is still scarce. There is a need to broaden this knowledge to understand this Amazonian ecosystem better, especially how its soils respond to human interventions. This study aimed to describe the major chemical features of floodplain soils along the […]

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Physical quality of sandy soils under orange orchards in Southern Brazil

Jonez Fidalski ORCID logo , Cássio Antonio Tormena ORCID logo

22/jun/2022

ABSTRACT Sandy soils are characterized by low organic matter content and soil water retention and availability. Conventional tillage has been used for the implementation of orange orchards, but it exposes the soil to erosion and promotes accelerated oxidation of organic matter with negative impacts on the soil’s physical quality. The objective of this study was to evaluate the soil physical quality of sandy soils influenced by two soil tillage practices for planting the orange trees in areas after long-time under […]

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Cover crops and controlled-release urea decrease nitrogen mobility and improve nitrogen stock in a tropical sandy soil with cotton cultivation

Carlos Felipe dos Santos Cordeiro ORCID logo , Daniel Rodela Rodrigues ORCID logo , Ana Flávia de Souza Rorato ORCID logo , Fábio Rafael Echer ORCID logo

02/fev/2022

ABSTRACT Sandy soil often has low nitrogen (N) stock. Thus, crops grown in sandy soil rely on high levels of N fertilization. The use of cover crops and efficient fertilizers can increase N stock in the soil and N availability in the topsoil, and reduce overall fertilizer costs. The objective of this study was to evaluate the effects of cover crops (fallow, a single grass species (ruzigrass), two grass species (ruzigrass + millet), one grass species (millet) with legumes [lime-yellow […]

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Rainfall erosivity estimation: Comparison and statistical assessment among methods using data from Southeastern Brazil

Dione Pereira Cardoso ORCID logo , Junior Cesar Avanzi ORCID logo , Daniel Furtado Ferreira ORCID logo , Salvador Francisco Acuña-Guzman ORCID logo , Marx Leandro Naves Silva ORCID logo , Fábio Ribeiro Pires ORCID logo , [...]

02/fev/2022

ABSTRACT Rainfall erosivity (R factor) is one of the six factors of the Universal Soil Loss Equation, being calculated based on the product of rainfall kinetic energy multiplied by its 30-minute maximum intensity. However, the lack of detailed and reliable rainfall data in many parts of the world has driven the use of other methods to estimate rainfall erosivity based on daily, monthly or annual data. These methods still need to be assessed to determine if their estimates are consistent […]

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Adoption of the no-tillage system in Paraná State: A (re)view

Edivan José Possamai ORCID logo , Paulo Cesar Conceição ORCID logo , Caroline Amadori ORCID logo , Marie Luise Carolina Bartz ORCID logo , Ricardo Ralisch ORCID logo , Marcelo Vicensi ORCID logo , [...]

13/jan/2022

ABSTRACT The concept of a no-tillage system (NTS), or “Sistema Plantio Direto,” was established in Brazil from the evolution of no-tillage (NT) or “Plantio Direto,” given the edaphoclimatic conditions and the need to promote chemical, physical and biological improvements in cultivated soils. While “Plantio Direto” is a conservationist practice, “Sistema Plantio Direto” presents itself as an agricultural production system based on the simultaneous adoption of minimum soil disturbance, maintenance of permanent soil cover and crop rotation. This study reviews the […]

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