Aggregate stability under different soil management systems in a red latosol in the state of Parana, Brazil

Filho, C. Castro; Lourenço, Ana Carolina; Guimarães, María de Fátima; Fonseca, Inês Cristina de Batista

doi:10.1016/s0167-1987(01)00275-6

Cited by 267 publications

(100 citation statements)

References 5 publications

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“…Com referência ao grau de floculação, observa-se (Tabela 6) que os valores médios obtidos variam de 75% (manejo CAPM) a 86% (manejo CASDR) sendo o maior erro padrão da média para o manejo CAPM.Esses resultados estão em acordo com Castro Filho et al (2002) e a provável explicação para esta diferença entre manejos no grau de floculação da argila pode residir em uma hipótese de natureza mecânica devido ao preparo do solo o qual pode aumentar a dispersão do solo e reduzir na mesma proporção o grau de floculação da argila (Tavares Filho & Tessier, 1998;.…”

Section: Resultsunclassified

Morfologia e propriedades físicas de solo segundo sistemas de manejo em culturas anuais

Fuentes-Llanillo

Guimarães

Filho

2013

Rev. bras. eng. agríc. ambient.

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RESUMOQualidade física do solo é sua capacidade de sustentar o pleno desenvolvimento das plantas. O objetivo deste trabalho foi estudar diferentes sistemas de semeadura direta para a produção de grãos em áreas de agricultura familiar sob Latossolo Vermelho no norte do Paraná, Brasil, através do estudo da morfologia e de algumas propriedades físicas do solo. O estudo foi baseado na descrição da estrutura de solo de perfis culturais em áreas cultivadas com lavouras anuais sob diferentes sistemas de manejo de solo (semeadura direta com e sem rotação de culturas, semeadura direta com escarificação eventual e o cultivo mínimo). Concomitantemente à descrição dos perfis foi determinada a resistência do solo a penetração, a densidade do solo, a umidade do solo e o grau de floculação da argila. Cada manejo estudado foi caracterizado por um tipo de estrutura de solo a qualse correlacionou com os valores de resistência, densidade e grau de floculação e em todos os manejos estudados abaixo dos 0,30 m, os perfis analisados apresentavam condições estruturais satisfatórias ao desenvolvimento radicular. Palavras-chave: sustentabilidade, plantio direto, perfil cultural, densidade do solo, resistência a penetraçãoMorphology and physical properties of soil according to tillage systems in annual crops ABSTRACT Soil physical quality is the ability to sustain the full development of plants. The aim of this research was to study different tillage systems for grain production in family farming enterprises on an Oxisol in northern Parana, Brazil, through the study of morphology and physical properties of soil. The study was based on description of soil structure of soil profiles in cultivated areas with annual crops under different soil management systems (no-tillage with and without crop rotation, no-tillage with eventual chisel ploughing and minimum tillage). Simultaneously with the profiles' description some physical properties were determined such as resistance to penetration, bulk density, soil moisture and the degree of clay flocculation. Each studied soil tillage system was characterized by a type of soil structure and correlated with values of resistance to penetration, density and degree of flocculation, and for all studied profiles below 0.30 m of depth the soil had good structural conditions for root development.

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Section: Resultsunclassified

Morfologia e propriedades físicas de solo segundo sistemas de manejo em culturas anuais

Fuentes-Llanillo

Guimarães

Filho

2013

Rev. bras. eng. agríc. ambient.

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“…Soil samples were air dried for 24 h in shade (humidity 15 ± 2 %). Very dry aggregates can lead to a misleadingly high resistance to breakdown and result in higher stability indices (Castro Filho et al, 2002). Air-dried soil samples were placed in plastic bags and cardboard boxes and stored at ambient temperature until analysis in the lab.…”

Section: Soil Sampling and Analysesmentioning

confidence: 99%

“…Similarly, Gonçalves et al (2006) and Bordin et al (2008) reported that millet promoted soil aeration. Millet as a cover crop has great potential for reducing soil BD, due to its root growth, and for increasing organic matter content in the soil profile (Castro Filho et al, 2002;Gonçalves et al, 2006;Silveira Neto et al, 2006;Calonego and Rosolem, 2008).…”

Section: Soil Bulk Densitymentioning

confidence: 99%

“…Perennial forages used as cover crops have great potential for C storage and directly influence SOM levels and soil aggregation (Nascente et al, 2013). There are many studies regarding soil aggregation (Castro Filho et al, 2002;Ferreira et al, 2007;Calonego and Rosolem, 2008;Canton et al, 2009;Kasper et al, 2009;. However, there is little information relating soil aggregation with cover crops and crop rotations under field conditions, especially in the Cerrado region, which has two well-defined seasons, a rainy summer and dry winter (Garcia and Rosolem, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Soil Aggregation, Organic Carbon Concentration, and Soil Bulk Density As Affected by Cover Crop Species in a No-Tillage System

Nascente

Crusciol

2015

Rev. Bras. Ciênc. Solo

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Soil aggregation and the distribution of total organic carbon (toc) may be affected by soil tillage and cover crops. the objective of this study was to determine the effects of crop rotation with cover crops on soil aggregation, toc concentration in the soil aggregate fractions, and soil bulk density under a no-tillage system (NtS) and conventional tillage system (ctS, one plowing and two disking). this was a three-year study with cover crop/rice/cover crop/rice rotations in the brazilian cerrado. A randomized block experimental design with six treatments and three replications was used. the cover crops (treatments) were: fallow, Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and millet (Pennisetum glaucum). An additional treatment, fallow plus ctS, was included as a control. Soil samples were collected at the depths of 0.00-0.05 m, 0.05-0.10 m, and 0.10-0.20 m after the second rice harvest. the treatments under the NtS led to greater stability in the soil aggregates (ranging from 86.33 to 95.37 %) than fallow plus ctS (ranging from 74.62 to 85.94 %). fallow plus ctS showed the highest number of aggregates smaller than 2 mm. the cover crops affected soil bulk density differently, and the millet treatment in the NtS had the lowest values. the cover crops without incorporation provided the greatest accumulation of toc in the soil surface layers. the toc concentration was positively correlated with the aggregate stability index in all layers and negatively correlated with bulk density in the 0.00-0.10 m layer.

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“…SOC is an important index of soil quality because of its relationship with crop productivity (Lal, 1997). A decrease in SOC leads to a decrease in soil's structural stability (Castro Filho et al, 2002). Also restoration of SOC in arable lands represents a potential sink for atmospheric CO 2 (Lal and Kimble, 1997).…”

Section: Issn: 2319-7706 Volume 6 Number 7 (2017) Pp 785-809mentioning

confidence: 99%

Effect of INM on Soil Carbon Pools, Soil Quality and Sustainability in Rice-Brown Sarson Cropping System of Kashmir Valley

Khan¹,

Kirmani²,

Wani³

2017

Int.J.Curr.Microbiol.App.Sci

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Aggregate stability under different soil management systems in a red latosol in the state of Parana, Brazil

Cited by 267 publications

References 5 publications

Morfologia e propriedades físicas de solo segundo sistemas de manejo em culturas anuais

Morfologia e propriedades físicas de solo segundo sistemas de manejo em culturas anuais

Soil Aggregation, Organic Carbon Concentration, and Soil Bulk Density As Affected by Cover Crop Species in a No-Tillage System

Effect of INM on Soil Carbon Pools, Soil Quality and Sustainability in Rice-Brown Sarson Cropping System of Kashmir Valley

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