37 results

No-tillage system combined with cover crops to improve phosphorus availability in the short term

Thassiany de Castro Alves ORCID logo , Priscila Silva Matos ORCID logo , Luiz Alberto da Silva Rodrigues Pinto ORCID logo , Eduardo Albano Gomes de Abreu ORCID logo , Mateus Belarmino da Silva ORCID logo , Jhulia Kathelen Carvalho de Oliveira dos Santos ORCID logo , [...]

30/Jun/2025

ABSTRACT Phosphorus (P) is an essential macronutrient for plant growth, and its availability is often influenced by management systems adopted over time. Adopting management systems, such as no-tillage, combined with cover crops, can influence soil P availability through factors including soil organic matter accumulation. This study aimed to evaluate how management systems and cover crops influence different P fractions and organic matter. Furthermore, the effect of the time since the implementation of management systems on phosphorus (P) availability and soil […]

Visual Abstract

Cropping and soil management systems effects on soil organic matter fractions in diversified agricultural fields in the Cerrado

Antonino José Jacques Gambôa Fernandez de Oliveira Netto ORCID logo , Lucas Medeiros Fagundes ORCID logo , Luiz Alberto da Silva Rodrigues Pinto ORCID logo , Emerson Trogello ORCID logo , Marcos Gervasio Pereira ORCID logo

25/Nov/2024

ABSTRACT Soil organic matter (SOM) dynamics can be significantly influenced by various cultivation practices, particularly under environmental and edaphic conditions that enhance and accelerate the transformations of organic materials such as straw, root biomass, and organic fertilizers. This study aimed to evaluate the impact of different cultivation and soil management systems on SOM fractions in agricultural areas of the Cerrado Goiano region. The research was conducted across three areas with diverse production systems: 1) BV area, including soybean monoculture (SM01), […]

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 […]

Visual Abstract

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 […]

Visual Abstract

Biological Properties and Organic Matter Dynamics of Soil in Pasture and Natural Regeneration Areas in the Atlantic Forest Biome

Leandro Ribeiro Nogueira, Cristiane Figueira da Silva, Marcos Gervasio Pereira, João Henrique Gaia-Gomes, Eliane Maria Ribeiro da Silva

05/Oct/2016

ABSTRACT The removal of original vegetation for crops and pasture production and then followed by natural regeneration is a standard practice in the Atlantic Forest, which has produced patches with different degrees of degradation and regeneration across the landscape. The aim of this study was to evaluate the effects of replacement of native forest by pasture and natural regeneration of vegetation on soil and on soil organic matter (SOM) dynamics in the dry and rainy season in an Atlantic Forest […]

Poultry Litter and Pig slurry Applications in an Integrated Crop-Livestock System

Paulo Hentz, Juliano Corulli Corrêa, Renato Serena Fontaneli, Agostinho Rebelatto, Rodrigo da Silveira Nicoloso, Claudio Eduardo Neves Semmelmann

13/Sep/2016

ABSTRACT Organic fertilizers derived from poultry litter and pig slurry are alternatives to mineral fertilizers in increasing soil nutrient availability. The aim of this study was to evaluate soil response, through characterization of organic C and available N, P, and K contents, and corn yield response to increasing amounts of poultry litter, pig slurry, and mineral fertilizers in an integrated crop-livestock production system (ICL) from 2011 to 2013. The experimental design consisted of randomized blocks in a 4 × 3 […]

NUTRIENT AVAILABILITY AND RECOVERY FROM CROP RESIDUES IN SOIL WITH DIFFERENT TEXTURES

Henrique José Guimarães Moreira Maluf, Emanuelle Mercês Barros Soares, Ivo Ribeiro da Silva, Júlio César Lima Neves, Mailson Félix de Oliveira Silva

01/Dec/2015

ABSTRACT Crop residues on the soil surface not only provide physical protection but may release significant amounts of nutrients to the soil through decomposition. However, the availability of these nutrients to plants has not been sufficiently studied. The aim of this study was to evaluate the total contents of organic C and N, pH, and the availability and recovery rate of P, K, Ca, Mg, and S from the biogeochemical cycling of different crop residues over time in built soils […]

ORGANIC MATTER FRACTIONS IN A QUARTZIPSAMMENT UNDER CULTIVATION OF IRRIGATED MANGO IN THE LOWER SÃO FRANCISCO VALLEY REGION, BRAZIL

José Alberto Ferreira Cardoso, Augusto Miguel Nascimento Lima, Tony Jarbas Ferreira Cunha, Marcos Sales Rodrigues, Luis Carlos Hernani, Andre Julio do Amaral, [...]

01/Jul/2015

Improper land use has lead to deterioration and depletion of natural resources, as well as a significant decline in agricultural production, due to decreased soil quality. Removal of native vegetation to make way for agricultural crops, often managed inadequately, results in soil disruption, decreased nutrient availability, and decomposition of soil organic matter, making sustainable agricultural production unviable. Thus, the aim of the present study was to evaluate the impact of growing irrigated mango (over a 20 year period) on the […]

SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME

Ricardo Fernandes de Sousa, Eliana Paula Fernandes Brasil, Cícero Célio de Figueiredo, Wilson Mozena Leandro

01/Jan/2015

Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief […]

Cover plants and mineral nitrogen: effects on organic matter fractions in an oxisol under no-tillage in the cerrado

Isis Lima dos Santos, Carla Ferreira Caixeta, Alex Antônio Torres Cortês de Sousa, Cícero Célio de Figueiredo, Maria Lucrécia Gerosa Ramos, Arminda Moreira de Carvalho

01/Dec/2014

Cover plants are essential for the sustainability of no-tillage systems in tropical regions. However, information on the effects of these plants and N fertilization on soil organic matter fractions is still scarce. This study evaluated the effect of cover crops with different chemical composition and of N topdressing on the labile and humified organic matter fractions of an Oxisol of the Cerrado (savanna-like vegetation). The study in a randomized complete block design was arranged in split-plots with three replications. Four […]

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