78 results

Soil physical, chemical and biological properties in Conilon coffee intercropping systems

Joabe Martins de Souza ORCID logo , Fábio Ribeiro Pires ORCID logo , José Ricardo Macedo Pezzopane ORCID logo , Kristhiano Chagas ORCID logo , Alex Favaro Nascimento ORCID logo , José de Oliveira Rodrigues ORCID logo , [...]

25/mar/2024

ABSTRACT Shaded coffee systems may offer a series of benefits, however, studies on shaded cultivation of Conilon coffee crops are still scarce in the literature. This study aimed to evaluate the soil physical, chemical, and biological properties of two Conilon coffee intercropping systems from southeastern Brazil. Two commercial coffee crops – one shaded by macadamia trees and the other by green dwarf coconut trees – were evaluated according to three treatments: coffee plants in the inter-row of the tree species; […]

Visual Abstract

Steady infiltration rate: Relation to antecedent soil moisture, soil permeability, and measurement method and period

Lucas Raimundo Rauber ORCID logo , Dalvan José Reinert ORCID logo , Paulo Ivonir Gubiani ORCID logo , Suelen Matiasso Fachi ORCID logo

16/jan/2024

ABSTRACT Soil steady water infiltration rate (SIR) is a key variable in hydrological modeling, but its relationship to antecedent soil moisture is not yet well understood. We tested the hypothesis that the SIR decreases with the increase in antecedent moisture, and that this relationship depends on permeability to water on the soil surface, the measurement method, and the measurement period. We conducted an experiment in an Argissolo Vermelho-Amarelo Distrófico abrúptico (Psammentic Paleudult – Soil Taxonomy), measuring infiltration in up to […]

Visual Abstract

Physiological and morphological responses of Arabica coffee cultivars to soil compaction

Elísia Gomes Ramos ORCID logo , Vanessa Maria de Souza Barros ORCID logo , José Danizete Brás Miranda ORCID logo , Laís Maria Rodrigues Silva ORCID logo , Júlio Cesar Lima Neves ORCID logo , Renata Maria Strozi Alves Meira ORCID logo , [...]

07/dez/2023

ABSTRACT Compaction caused by mechanization affects soil quality and, consequently, the development of crops. This study aimed to evaluate the effect of different degrees of soil compaction on the physiology, morphology, and anatomy of different coffee cultivars in a controlled environment. The experiment was carried out in a greenhouse, with randomized block design in a 5 × 5 factorial arrangement, with five coffee cultivars (Arara, Catuaí Amarelo IAC 62, Catuaí Vermelho 144, MGS Paraíso 2 and Mundo Novo IAC 379-19) […]

Visual Abstract

Cracking process in expansive soil with and without vegetation covers in dry and rainy seasons at field scale

Silvio Romero de Melo Ferreira ORCID logo , Arthur Gomes Dantas Araújo ORCID logo , Martha Maria Bezerra Santos ORCID logo

28/nov/2023

ABSTRACT The presence of desiccation cracks in the soil alters its hydromechanical behavior, increasing the soil’s water infiltration capacity, mobilizing the potential for expansion. This may affect the performance of the structural elements of the construction. This study aimed to evaluate the mechanics of expansion, contraction and cracking of the expansive soil of Paulista – Pernambuco, Brazil, through field trials, subject to wetting cycles and drying. The studied soil is a sandy silty clay of high compressibility with medium to […]

Visual Abstract

Changes in physical and hydraulic properties in sandy soils of the Pampa Biome under different uses

Rodrigo de Moraes Galarza ORCID logo , Rodrigo Pivoto Mulazzani ORCID logo , Daniel Boeno ORCID logo , Paulo Ivonir Gubiani ORCID logo

03/out/2023

ABSTRACT The naturally fragile sandy soils of the Pampa Biome (PB) may be degraded with the introduction of poorly managed agricultural crops. Anthropic use can markedly decrease vegetation cover on sandy soils, leaving them more exposed to erosive agents. Decreases in organic matter content, biodiversity, and nutrient availability, increased soil compaction, and decreased water availability are also some of the impacts caused on PB soils by implementing poorly managed agricultural crops. In Rio Grande do Sul, in areas with sandier […]

Visual Abstract

Conservation agriculture practices in a peanut cropping system: Effects on pod yield and soil penetration resistance

Olavo Betiol ORCID logo , Denizart Bolonhezi ORCID logo , Élcio Ríos Perez Leal ORCID logo , Chandler Edwin Gruener ORCID logo , Marcos Doniseti Michelotto ORCID logo , Carlos Eduardo Angeli Furlani ORCID logo , [...]

16/ago/2023

ABSTRACT Conservation agriculture principles applied to peanut can reduce soil erosion and production costs when cultivated in rotation with sugarcane. Still, the problem with soil compaction is the leading cause of skepticism about the efficacy of this practice. This research aimed to study the effect of three soil management strategies compared with conventional for peanut cv. IAC-OL3, cultivated in rotation with sugarcane using the MEIOSI (method of intercropping occurring simultaneously) system for agronomic practices with additional analysis on changes in […]

Visual Abstract

Inversion of soil moisture and its feedback on ecological restoration in arid and semi-arid areas of northwest China

Xin Liu ORCID logo , Yuanyuan Hao ORCID logo , Ziyan Zhou ORCID logo , Limin Hua ORCID logo , Wenxia Cao ORCID logo , Ruifang Zhang ORCID logo , [...]

12/dez/2022

ABSTRACT Soil moisture (SM) plays an important role in regulating the global water cycle, especially in arid areas, and is one of the main indicators of ecological environmental health. Although traditional methods can accurately measure SM at a single sample site, they are limited in large-scale and dynamic SM monitoring. Therefore, we used the Landsat images as the data source and the soil adjusted vegetation index (SAVI) to build the adjusted SAVI (aSAVI) index by modifying the soil adjustment parameter […]

Visual Abstract

Aggregation rate as a function of soil organic matter in heavy clayey Ferralsols

Thadeu Rodrigues de Melo ORCID logo , Marcos Gervasio Pereira ORCID logo , Gabriel Danilo Shimizu ORCID logo , Graziela Moraes de Cesare Barbosa ORCID logo , João Tavares Filho ORCID logo

16/set/2022

ABSTRACT Heavy clayey Ferralsols are known for their high capacity to form water-stable macroaggregates. However, little is known about how different size classes of macroaggregates exchange mass with increasing organic matter content. This study aimed to characterize and detail aggregation dynamics with increasing organic matter content in these soils. Profiles of three heavy clayey Ferralsols were sampled to isolate the role of organic matter on the stability of aggregates. In this sampling scenario, a conceptual model was established to calculate […]

Visual Abstract

Load-bearing capacity and critical water content of the coffee plantation soil with management in full sun and shaded

Kasé Santos Lacerda ORCID logo , Rafaela Carvalho Vargas ORCID logo , Kleber Mariano Ribeiro ORCID logo , Moacir de Souza Dias Junior ORCID logo , Kátia Daniela Ribeiro ORCID logo , Dorotéo de Abreu ORCID logo

06/set/2022

ABSTRACT New management practices applied to coffee crops may influence the soil’s capacity to tolerate vertical stresses. This paper aimed to evaluate the influence of two coffee crop management systems on the soil load-bearing capacity and critical soil water content to agricultural machinery traffic. This study was performed in the experimental area of the Federal Institute of the Southeast of Minas Gerais – Rio Pomba college, in Rio Pomba city, Minas Gerais, Brazil. Dystrophic Red-Yellow Oxisol (Latossolo Vermelho-Amarelo distrófico) (LVA7) […]

Visual Abstract

Different managements in conventional sugarcane reform in sandy soils: effects on physical properties and soil organic carbon

Lucas Augusto de Assis Moraes ORCID logo , João Tavares Filho ORCID logo , Thadeu Rodrigues de Melo ORCID logo

07/jun/2022

ABSTRACT Sugarcane culture in Brazil has expanded the planting area to degraded pastures and sandy soils. Sugarcane field reform is carried out after five or more harvest cycles, with conventional tillage, followed by planting sugarcane, or growing soybeans or a cover crop. This study aimed to analyze the effects of these different managements in the conventional sugarcane reform on the physical properties and organic carbon in an Argissolo Vermelho distrófico arênico (sandy Ultisol), located at latitude 21° 13’ 40” south, […]

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