Propriedades físicas do solo em função de manejos em lavouras de cafeeiro conilon

Effgen, Teóphilo André Maretto; Passos, Renato Ribeiro; Andrade, Felipe Vaz; Lima, Julião Soares de Souza; Reis, Edvaldo Fialho dos; Borges, Elias Nascentes

doi:10.1590/s0034-737x2012000300018

Cited by 13 publications

(15 citation statements)

References 14 publications

(11 reference statements)

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“…There are physical and chemical soil properties that interact with macrofaunal groups by influencing their metabolism, while, at the same time, responding to the behavior of soil invertebrates. The most cited physical properties are soil texture, porosity, and water retention capacity, which normally are not susceptible to rapid responses, while the chemical ones are linked to soil fertility and nutrient availability (Effgen et al 2008(Effgen et al , 2012, and may have a great impact on soil macrofauna. Among the most responsive ones, we cite the microbiological properties, which describe the microbial activity in soils (Maluche- Baretta et al 2006, Kaschuk et al 2010.…”

Section: Introductionmentioning

confidence: 99%

Soil macrofauna in organic and conventional coffee plantations in Brazil

et al. 2018

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Brazil has always been one of the most important coffee producing countries. Lately, there has equally been a renewed interest in alternative coffee production systems. The state of Espírito Santo is the second greatest coffee producer in Brazil; so, we used local coffee plantations to evaluate the relations between soil macrofauna and chemical and microbiological soil properties to identify which of these properties discriminate more effectively between the organic management system (OS) and the conventional management system (CS) of coffee plantations. For each of these two cultivation systems we chose three coffee farms who employed both cultivation systems and picked out the most similar fields from each property. At each site, first we sampled the litter at the soil surface. Afterwards, we sampled nine soil monoliths to evaluate the macrofauna, in summer and winter. We also collected nine supplemental soil samples, taken at a few centimeters from the soil monoliths, for chemical and microbiological analyses. Macrofauna density was evaluated by ANOVA and multivariate analysis. The chemical and microbiological properties are environmental variables, while the data on macrofauna are the explanatory variables. The total number of individuals recovered in this study was 3,354, and the climate, identified by the sampling season, was a great modulator of macrofauna, with higher numbers in winter. The principal components analysis showed that soil moisture, organic matter, nitrogen, phosphorus, boron, copper, pH, acid and alkaline phosphatases and microbial biomass carbon, were the most outstanding ones to discriminate both cultivation systems. We found no statistical significant differences in macrofauna density between OS and CS, probably due to a general great variability, since there was a tendency for much greater values in OS. We detected the interference of chemical and microbiological soil properties on the macrofauna community in both systems of coffee cultivation, and some results clearly correlated much better with climate data than with other factors. To our knowledge, this is the first time in which the data point to a clear separation between the more numerous and diversified soil macrofauna in coffee with organic cultivation from that with a conventional cultivation system.

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Section: Introductionmentioning

confidence: 99%

Soil macrofauna in organic and conventional coffee plantations in Brazil

et al. 2018

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“…Effgen et al (2012) determined that the value of 5.1 MPa in the 20-40 cm layer for coffee grown in dystrophic Red-Yellow Oxisols was restrictive to root development. Aguiar (2008) recorded a maximum RP of 3.8 and 4.5 MPa in the dry period for soils under agroforestry and conventional coffee, respectively, while in the soil under forest, the highest RP in the dry season was 2.1 MPa.…”

Section: Discussionmentioning

confidence: 99%

Soil aggregation and organic carbon of Oxisols under coffee in agroforestry systems

Guimarães

Mendonça²,

Passos³

et al. 2014

Rev. Bras. Ciênc. Solo

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Intensive land use can lead to a loss of soil physical quality with negative impacts on soil aggregates, resistance to root penetration, porosity, and bulk density. Organic and agroforestry management systems can represent sustainable, well-balanced alternatives in the agroecosystem for promoting a greater input of organic matter than the conventional system. Based on the hypothesis that an increased input of organic matter improves soil physical quality, this study aimed to evaluate the impact of coffee production systems on soil physical properties in two Red-Yellow Oxisols (Latossolos Vermelho-Amarelos) in the region of Caparaó, Espirito Santo, Brazil. On Farm 1, we evaluated the following systems: primary forest (Pf1), organic coffee (Org1) and conventional coffee (Con1). On Farm 2, we evaluated: secondary forest (Sf2), organic coffee intercropped with inga (Org/In2), organic coffee intercropped with leucaena and inga (Org/In/Le2), organic coffee intercropped with cedar (Org/Ced2) and unshaded conventional coffee (Con2). Soil samples were collected under the tree canopy from the 0-10, 10-20 and 20-40 cm soil layers. Under organic and agroforestry coffee management, soil aggregation was higher than under conventional coffee. In the agroforestry system, the degree of soil flocculation was 24 % higher, soil moisture was 80 % higher, and soil resistance to penetration was lower than in soil under conventional coffee management. The macroaggregates in the organic systems, Org/In2, Org/In/Le2, and Org/Ced2 contained, on average, 29.1, 40.1 and 34.7 g kg-1 organic carbon, respectively. These levels are higher than those found in the unshaded conventional system (Con2), with 20.2 g kg-1.

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“…Outro fator, segundo Effgen et al (2012), que afeta a Ds, são os ciclos de umedecimento e secagem, e o impacto das gotas de chuvas que favorecem a desagregação aumentando a dispersão de partículas finas causando o entupimento dos poros. Assim, em áreas de mata com dossel bem desenvolvido espera-se menores valores de Ds, conforme observado no presente trabalho.…”

Section: /9unclassified

“…Os valores de McP variaram de 0,38 a 0,23 cm 3 cm -3 (Tabela 2), sendo sempre superiores na condição de menor uso agrícola. Para Effgen et al (2012), as partículas dispersas pelo impacto das gotas de chuvas em solos desnudos são carregadas e rearranjadas nos poros maiores, reduzindo principalmente a macroporosidade. Os autores não encontram diferenças significativas para a microporosidade em diferentes manejos e relacionam esses resultados a influência da textura e não do manejo.…”

Section: /9unclassified

Latossolo húmico sob pastagem com diferentes intensidades de usos: atributos químicos e físico-hídricos

Bezerra

Souza

Corrêa

et al. 2019

Agraria

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AGRONOMIA (AGRONOMY) RESUMO: O município de Brejão possui condições especiais, com clima mais frio e chuvoso e solos mais profundos e bem estruturado, com ocorrência de latossolos de horizonte com A húmico. Assim o objetivo deste trabalho foi investigar as alterações nos atributos químicos, físicos e hídricos do horizonte superficial A húmico de um Latossolo Amarelo submetido a diferentes formas de uso no Agreste Meridional pernambucano, e investigar a repelência do solo a água. As amostras deformadas e indeformadas foram coletadas em uma área de mata nativa (MN), pasto de 5 anos (PA5) e pasto de 30 anos (PA30), em três camadas 0 a 10 cm, 10 a 20 cm e 20 a 30 cm e foram avaliados os atributos químicos, físicos e hídricos, e realizado um teste de infiltração com anel simples. Os atributos químicos apresentaram tipicidade de Latossolos Amarelo distróficos, e atributos relacionados com a acidez apresentando resultados significativos principalmente na camada superficial. Já os atributos físicos que mais sofreram alterações com o manejo inadequado foram a densidade do solo e a porosidade. Pelo teste de infiltração fica claro a presença de repelência do solo a água. Palavras-chave: curva de infiltração de água; pastagem; repelência a água; solos argilosos Latosol humic under different uses in agreste pernambuco southern: attributes chemical, physical and water ABSTRACT: The municipality of Brejão has special conditions with cooler and rainy weather and deeper soils and well structured, with occurrence horizon latosols with the humic. So the aim of this study was to investigate the changes in chemical, physical and water attributes of the surface horizon of a humic Oxisol subjected to different forms of use in the South Agreste Pernambuco, and investigate the repellency of the soil water. The disturbed and undisturbed samples were collected in a native forest (MN), pasture 5 years (PA5) and grazing 30 (PA30) in three layers 0 to 10 cm, 10 to 20 cm and 20 to 30 cm and evaluated the chemical, physical and water attributes, and realized an infiltration test with simple ring. Chemical attributes presented typicality dystrophic yellow latosols, and attributes related to the acidity showing significant results mainly in the surface layer. Have the physical attributes that most change with inadequate management are the bulk density (Ds) and porosity. For the infiltration test it is clear the presence of soil water repellency.

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Propriedades físicas do solo em função de manejos em lavouras de cafeeiro conilon

Cited by 13 publications

References 14 publications

Soil macrofauna in organic and conventional coffee plantations in Brazil

Soil macrofauna in organic and conventional coffee plantations in Brazil

Soil aggregation and organic carbon of Oxisols under coffee in agroforestry systems

Latossolo húmico sob pastagem com diferentes intensidades de usos: atributos químicos e físico-hídricos

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