Estrutura de um nitossolo vermelho latossólico eutroférrico sob sistema plantio direto, preparo convencional e floresta

Domingos, Mausy Marchel Marques; Gasparetto, Nelson Vicente Lovatto; Nakashima, Paulo; Ralisch, Ricardo; Filho, João Tavares

doi:10.1590/s0100-06832009000600001

Cited by 9 publications

(4 citation statements)

References 10 publications

(7 reference statements)

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“…These results are in line with Neves et al (2003), Benito et al (2008), Domingos et al (2009) and Tavares Filho & Tessier (2009 and show the differences in soil structure of the two management systems. Conventional tillage of this area with a plow and one or two leveling disk harrows and no-tillage cultivation induced considerable changes in the soil structure between 0 and 0.5 m in comparison to the soil under native forest, with increasingly compacted structures and root growth predominantly in the cracks.…”

Section: Visual Assessment Of Soil Morphologysupporting

confidence: 85%

Soil aggregation under different management systems

Portella¹,

Guimarães

Feller

et al. 2012

Rev. Bras. Ciênc. Solo

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Section: Visual Assessment Of Soil Morphologysupporting

confidence: 85%

Soil aggregation under different management systems

Portella¹,

Guimarães

Feller

et al. 2012

Rev. Bras. Ciênc. Solo

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“…The different HMUs had no significant influence on WRC or SRC, probably because Bd incorporated the effect of the HMU. The results obtained by Fregonezi et al (2001), Neves et al (2003), and Domingos et al (2009) indicate that the levels of compaction described by the HMUs were captured by Bd. The positive coefficient for Bd in the WRC indicates that soil water retention is positively related to Bd (Table 4), as previously identified in tropical Oxisols (Tormena et al, 1998).…”

Section: Rev Bras Cienc Solo 2018;42:e0160393mentioning

confidence: 76%

Is Structural Quality as Assessed by the "Profil Cultural" Method Related to Quantitative Indicators of Soil Physical Quality?

Watanabe

Tormena

Guimarães

et al. 2018

Rev. Bras. Ciênc. Solo

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Soil and crop management systems change the soil structure, thereby affecting soil quality. The "profil cultural" method (PCM) has been used to identify the effects of management systems on soil structure; however, few studies relate the structures identified by the PCM to quantitative indicators of soil structural quality. This study aimed to quantify soil structures using the PCM and relate these structures to bulk density (Bd), critical bulk density (Bdc), soil aeration capacity (ε a ), least limiting water range (LLWR), and soil air permeability (K a ) under different soil and crop management systems. The study was developed in a long-term experiment (24 years) involving two systems of soil management (no-tillage and conventional tillage) and two systems of crop management (rotation and succession), resulting in four treatments: no-tillage with crop rotation (NTr), no-tillage with crop succession (NTs), conventional tillage with heavy harrowing and crop rotation (CTr) and conventional tillage with heavy harrowing and crop succession (CTs). The PCM was used to identify the different homogeneous morphological units (HMUs) in the soil profile. Undisturbed soil samples were collected for the HMUs that were most represented in the profiles to determine K a , LLWR, Bd, and ε a . ). The proportion of samples where Bd > Bdc was 23 % under CTs, 77 % under CTr, 32 % under NTs, and 39 % under NTr. The structures that were most restrictive to root development (CΔ, CΔμ, FmtΔμ, and FmtμΔ) show a lower K a and greater soil penetration resistance as the soil dries. Pores are more continuous and the structure is less restrictive to plant development in no-tillage than in conventional tillage.

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“…The lowest soil density in areas occupied by native forests has already been found in different Brazilian Biomes [15,17,19,[30][31][32][33][34][35][36][37]. In the same watershed, Flores et al [32] found in Argissolo Vermelho, that the density of native forest and native field soil was lower than in the cultivation areas, with greater differences in the layer of higher organic matter intake (0 a 0.05 m).…”

Section: Tablementioning

confidence: 86%

Physical Quality of Soils in a Toposequence of a Forest Fragment under Livestock Activity in a Watershed in South Brazil

Miguel¹,

Venzke²,

Pagani³

et al. 2023

Sustainable Development

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The conservation of native forests is fundamental to the preservation of hydric resources in the landscape. The use of animals in forest fragments has resulted in degradations in the soil, resulting in the grating of these. Thus, soil classes were studied and physical parameters of forest soils were evaluated in areas without and with cattle grazing in the “Arroio Pelotas” watershed, Pelotas, Rio Grande do Sul, extreme south of Brazil. The results were submitted to statistical analysis with the Kruskal–Wallis nonparametric test with a significance level of 5%. The means of the physical parameters of soil in the same toposequence and layers with and without the presence of livestock were compared. By analyzing soil physical attributes (density, macroporosity, and microporosity) it can be seen that the structural quality of the soil is affected by the access of animals inside the forest fragments, especially in the upper layer of the soil (0–5 cm deep). In forest fragments without access to animals, the physical structure of the soil presented the best conditions of macroporosity and, consequently, greater protection of nutrients, microorganisms, and water resources. Therefore, it is concluded that conservation by the isolation of protective forests in rural property planning benefits the quality of forest soils.

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Estrutura de um nitossolo vermelho latossólico eutroférrico sob sistema plantio direto, preparo convencional e floresta

Cited by 9 publications

References 10 publications

Soil aggregation under different management systems

Soil aggregation under different management systems

Is Structural Quality as Assessed by the "Profil Cultural" Method Related to Quantitative Indicators of Soil Physical Quality?

Physical Quality of Soils in a Toposequence of a Forest Fragment under Livestock Activity in a Watershed in South Brazil

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