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Potassium buffer capacity in subtropical soils with high organic matter content
Douglas Luiz Grando , Cauan Guerra Martins
, Lucas Peranzoni Deponti
, Marcos de Lima Rodrigues
, Gilmar Luiz Mumbach
, Djalma Eugênio Schmitt
, Diovane Freire Moterle
, Tadeu Luis Tiecher
, Luana Paula Garlet
, Laura Silva Dunker
, Daniele Gonçalves Papalia
, Gustavo Brunetto
07/out/2025

Potassium buffer capacity in subtropical soils with high organic matter content
Douglas Luiz Grando , Cauan Guerra Martins
, Lucas Peranzoni Deponti
, Marcos de Lima Rodrigues
, Gilmar Luiz Mumbach
, Djalma Eugênio Schmitt
, Diovane Freire Moterle
, Tadeu Luis Tiecher
, Luana Paula Garlet
, Laura Silva Dunker
, Daniele Gonçalves Papalia
, Gustavo Brunetto
07/out/2025
ABSTRACT Subtropical soils can have medium to high soil organic matter levels, which directly affects cation exchange capacity (CEC) and potassium (K) availability to plants. This generates the need to define K buffer capacity (KBC) values and K corrective rates to improve the fertilization recommendation system for these soils, ensuring high yields and reducing the likelihood of K losses in the environment. This study aimed to define KBC values and the K rates to be applied in corrective fertilization of […]
Phytolith records in organic soils: Evidence of environmental changes in the southern Brazilian highlands
João Pedro Comendouros Scott , Carlos Roberto Pinheiro Junior
, Melania Merlo Ziviani
, Marcos Gervasio Pereira
, Eduardo Carvalho da Silva Neto
07/out/2025

Phytolith records in organic soils: Evidence of environmental changes in the southern Brazilian highlands
João Pedro Comendouros Scott , Carlos Roberto Pinheiro Junior
, Melania Merlo Ziviani
, Marcos Gervasio Pereira
, Eduardo Carvalho da Silva Neto
07/out/2025
ABSTRACT Soils preserve numerous proxies for paleoenvironmental reconstruction, including phytoliths, which are highly resistant to weathering and can be preserved over long periods. This study investigates the environmental history and soil formation processes in the highlands of southern Brazil through the analysis of organic soils and phytolith records. Our research focuses on the Serra Geral formation, where soils are deeply influenced by environmental factors such as climate, vegetation, and human activities. Four soil profiles in the states of Santa Catarina […]
Simulation of soil organic carbon potential sequestration for high Andes Peruvian croplands
Carlos Carbajal , Jesús Vera
, Samuel Pizarro
, Carlos Mestanza
12/set/2025
RESUMO O sequestro de carbono orgânico do solo (COS) em terras agrícolas representa uma oportunidade significativa para mitigar as mudanças climáticas, removendo dióxido de carbono da atmosfera. Ferramentas de simulação são cada vez mais utilizadas para avaliar o impacto das mudanças climáticas e do manejo do solo na dinâmica dos estoques de carbono orgânico do solo. Embora os solos andinos normalmente armazenem grandes quantidades de carbono orgânico, práticas agrícolas, especialmente a aração, podem esgotar esses estoques, criando a necessidade de […]
Available phosphorus content in bare soil surface and soluble in water runoff under intense rainfall
Agna Letícia Botelho Figueiredo , Ildegardis Bertol
, Camilo Bertol
, Barbara Bagio
, Marco Segalla Prazeres
12/set/2025

Available phosphorus content in bare soil surface and soluble in water runoff under intense rainfall
Agna Letícia Botelho Figueiredo , Ildegardis Bertol
, Camilo Bertol
, Barbara Bagio
, Marco Segalla Prazeres
12/set/2025
ABSTRACT Available phosphorus (P) content on bare soil surface and in runoff varies with the variation in the dose and form of P application and soil management. Phosphorus applied to recently cultivated, bare soil with minimal roughness remains on the surface, increasing the element content in the runoff. This study was carried out under simulated rainfall in a recently cultivated, bare, and minimally rough Cambissolo Húmico Alumínico, or Aluminum Humic Distrudept. Efect of phosphorus dosage on the element content in […]
Impact of long-term soil management on epigeic soil fauna and soil properties of an Inceptisol with high organic matter
Neuro Hilton Wolschick , Ildegardis Bertol
, Pâmela Niederauer Pompeo
, Osmar Klauberg-Filho
, Loriane Bernardi
, Bárbara Bagio
12/set/2025

Impact of long-term soil management on epigeic soil fauna and soil properties of an Inceptisol with high organic matter
Neuro Hilton Wolschick , Ildegardis Bertol
, Pâmela Niederauer Pompeo
, Osmar Klauberg-Filho
, Loriane Bernardi
, Bárbara Bagio
12/set/2025
ABSTRACT Agricultural yield depends on a series of ecosystem services provided by soil biota, among other factors. Soil management systems that are more sustainable than conventional tillage mitigate harmful effects to soil, improving the structure and function of the soil biota and facilitating ecosystem services. This study aimed to evaluate the effect of soil management practices on epigeic soil fauna and soil physical, chemical and microbiological properties. The experimental design was completely randomized, with the following treatments: NT – no-tillage; […]
Soil-aggregate phosphorus and its correlation with edaphic properties in a mountainous agricultural area of southeastern Brazil
Silver Rodrigues Zandoná , Luiz Alberto da Silva Rodrigues Pinto
, Robert Ferreira
, Gabriel Coutinho Oliveira de Lemos
, Isabella Silva Lopes
, Matheus Corrêa de Oliveira
, Eduardo Carvalho da Silva Neto
, Marcos Gervasio Pereira
12/set/2025

Soil-aggregate phosphorus and its correlation with edaphic properties in a mountainous agricultural area of southeastern Brazil
Silver Rodrigues Zandoná , Luiz Alberto da Silva Rodrigues Pinto
, Robert Ferreira
, Gabriel Coutinho Oliveira de Lemos
, Isabella Silva Lopes
, Matheus Corrêa de Oliveira
, Eduardo Carvalho da Silva Neto
, Marcos Gervasio Pereira
12/set/2025
ABSTRACT Dynamics of phosphorus (P) distribution, availability, and accumulation in reservoirs are influenced by land use and management. This study aimed to evaluate the total P (TP) content in soil aggregates formed under different vegetation cover types and agricultural crops, analyze the inorganic and organic forms of P with different degrees of lability, evaluate the percentage of P adsorbed (P ads), and, investigate the interactions between the soil aggregate P-fractions evaluated and their physical and chemical properties. Three different cultivated […]
Phosphorus fractions in a lowland production system in subtropical soil under no-tillage
Rogério Oliveira de Sousa , Juliana Brito da Silva
, Walkyria Bueno Scivittaro
, Ezequiel Helbig Pasa
, Filipe Selau Carlos
12/set/2025

Phosphorus fractions in a lowland production system in subtropical soil under no-tillage
Rogério Oliveira de Sousa , Juliana Brito da Silva
, Walkyria Bueno Scivittaro
, Ezequiel Helbig Pasa
, Filipe Selau Carlos
12/set/2025
ABSTRACT Phosphorus (P) is one of the most limiting elements for plant nutrition in tropical and subtropical soils due to its high binding energy on the surface of iron and aluminum oxides and hydroxides. Flooded rice cultivation occurs in lowlands, influencing redox reactions and P dynamics. This study aimed to evaluate the forms of phosphorus and their lability after soil reoxidation subsequent to a period of flooding for irrigated rice cultivation following four seasons of cultivation with soybean-ryegrass and corn-white […]
Struvite potential as a slow-release fertilizer for phosphorus sustainable management in Brazilian agriculture
Caio Teves Inácio , David Villas Boas de Campos
, Fabiane Antes Goldschmidt
, Rubia Mores
, Airton Kunz
, Gustavo Brunetto
, William Natale
, Lessandro De Conti
, Paola Daiane Welter
, Carina Marchezan
, June Faria Scherrer Menezes
, Ricardo de Castro Dias
, Bruno José Rodrigues Alves
12/set/2025

Struvite potential as a slow-release fertilizer for phosphorus sustainable management in Brazilian agriculture
Caio Teves Inácio , David Villas Boas de Campos
, Fabiane Antes Goldschmidt
, Rubia Mores
, Airton Kunz
, Gustavo Brunetto
, William Natale
, Lessandro De Conti
, Paola Daiane Welter
, Carina Marchezan
, June Faria Scherrer Menezes
, Ricardo de Castro Dias
, Bruno José Rodrigues Alves
12/set/2025
ABSTRACT Phosphorus in agriculture is an essential, limited, and strategic resource, and its sustainable management is a global challenge. Phosphorus (P) recovery as struvite (NH4MgPO4.6H2O) from manures and municipal and agro-industrial wastewaters has been considered one of the most sustainable technologies, based on the circular economy, to face challenges regarding P reserves and its use for conventional fertilizer production. Struvite is a slow-release P-fertilizer (5 % N, 12 % P, 10 % Mg), which could significantly reduce the Brazilian dependency […]
Phosphate fertilization strategies and placement effects on grain crop yields in subtropical no-till Oxisols
Andria Paula Lima , Sandra Mara Vieira Fontoura
, Renato Paulo de Moraes
, Cimélio Bayer
, Luke Gatiboni
, Tales Tiecher
06/ago/2025

Phosphate fertilization strategies and placement effects on grain crop yields in subtropical no-till Oxisols
Andria Paula Lima , Sandra Mara Vieira Fontoura
, Renato Paulo de Moraes
, Cimélio Bayer
, Luke Gatiboni
, Tales Tiecher
06/ago/2025
ABSTRACT Subtropical Oxisols have a high phosphate adsorption capacity and consequently lower phosphorus (P) availability. Therefore, correct management of phosphate fertilization in grain crop rotations is essential to increase the P-use efficiency and minimize potential environmental impacts. This study aimed to evaluate, in soils with medium and high initial P level, fertilization strategies (crop and system fertilization) and placement’s effects (banded P and broadcast) on soil available P, crop yield, and P use efficiency. Two field trials were installed on […]
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Solos Antrópicos - RBCS - Revista Brasileira de Ciência do Solo
www.rbcsjournal.org
Os solos são o palco das atividades humanas vinculadas à produção de alimentos, lugar de morada, assoalho das cidades, das indústrias e material construtivo. Eles também são repositório e dest...Share on Facebook Share on Twitter Share on Linked In Share by Email
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