Interaction of soil compaction, phosphorus and zinc on clover growth and accumulation of phosphorus

Barzegar, A. Rahman; Nadian, H.; Heidari, Farrokh; Herbert, Stephen J.; Hashemi, A. M.

doi:10.1016/j.still.2005.03.004

Cited by 30 publications

(29 citation statements)

References 17 publications

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“…Others showed decreases in root length and biomasss in 0-0.15 m depth in wheel-tracks compared to row positions (Kaspar et al, 1991(Kaspar et al, , 1995. We reviewed the literature and found that even a small increase in soil resistance as low as 0.5 MPa by compaction would lead to a decrease in root length and biomass (Barzegar et al, 2006;Bingham et al, 2010). A previous study found a soil resistance up to 1 MPa under the wheel-track of the same orchard (Vogeler et al, 2006).…”

Section: Higher Carbon Inputs Under the Wheel-track?mentioning

confidence: 77%

Can minor compaction increase soil carbon sequestration? A case study in a soil under a wheel-track in an orchard

et al. 2012

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Section: Higher Carbon Inputs Under the Wheel-track?mentioning

confidence: 77%

Can minor compaction increase soil carbon sequestration? A case study in a soil under a wheel-track in an orchard

et al. 2012

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“…Similarly, Mariani et al reported that organic layer removal reduced abundance of herbs and shrubs [12]. Soil compaction can also severely reduce plant growth by restricting root growth may be due to oxygen stress and lower the percentage of water and air space in the soil [13]. Also, Kozlowski mentioned a reduced total photosynthesis when soils become increasingly compacted, as a result of smaller leaf areas [6].…”

Section: Resultsmentioning

confidence: 99%

Revegetated herbaceous plant species on a compacted skid road

Gungor

Makineci

Demir

2008

Journal of Terramechanics

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“…Quando a estrutura do solo se degrada pode haver, além do decréscimo da matéria orgânica, limitações quanto à resiliência do solo a processos erosivos; menor disponibilidade hídrica e de nutrientes para o desenvolvimento das plantas; redução da porosidade de aeração; aumento da resistência do solo à penetração das raízes e menor ciclagem e mineralização de nutrientes (Hamza & Anderson, 2005). Essas limitações propiciam o decréscimo do rendimento agrícola e aumentam os custos de produção (Santos et al, 2005;Barzegar et al, 2006).…”

Section: Introductionunclassified

Curvas de compactação de um Latossolo Vermelho-Amarelo: com e sem reúso de amostras

Ramos

Maia

et al. 2013

Rev. bras. eng. agríc. ambient.

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RESUMOA curva de compactação do solo é determinada pelo ensaio de Proctor, normal ou modificado, amplamente empregado na engenharia civil; entretanto, seu uso agronômico apresenta limitações já que a configuração da curva parte do reúso de uma única amostra, desconsiderando a estrutura original do solo. Diante disto, objetivou-se avaliar a configuração da curva de compactação a partir do reúso e não reúso de amostras de um Latossolo Vermelho-Amarelo considerando-se diferentes sistemas de manejo. Verificou-se, ao comparar o procedimento com e sem reúso da amostra que, independentemente dos manejos e camadas avaliadas, foram obtidas diferentes curvas de compactação do solo. Por outro lado, o procedimento com reúso aumenta os valores de densidade do solo pela fragmentação dos agregados e reorganização das suas partículas. Portanto, para fins agrícola a curva de compactação é adequadamente caracterizada sem reúso de amostras visto que, neste ensaio, os agregados da amostra não são totalmente fracionados, sejam eles oriundos do solo sob vegetação nativa ou de áreas antropizadas.Palavras-chave: umidade ótima de compactação, densidade máxima de compactação, Proctor normal, estabilidade de agregados, matéria orgânica do solo Soil compaction curves of an Oxissol:With and without reuse of samples ABSTRACT The soil compaction curve is determined by the Proctor test, normal or modified, widely used in civil engineering, however, its use has agronomic limitations, since the configuration of the curved part of the reuse of a single sample, disregarding the original soil structure. In this context, the objective of the study was to evaluate the configuration of the compaction curve based on with and without reuse of samples of an Oxissol, considering different management systems. While comparing the procedure with and without reuse of the sample, it was found that regardless of managements and layers evaluated, curves of soil compaction obtained were different. Furthermore, the procedure to reuse samples increases the density of the soil due to fragmentation of the aggregates and reorganization of its particles. Thus, for agricultural purposes, the compaction curve is suitably characterized without reuse of samples, since with this test, the aggregates of the sample, are not fully fractionated, both aggregates from soil under native vegetation or anthropized areas.

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Interaction of soil compaction, phosphorus and zinc on clover growth and accumulation of phosphorus

Cited by 30 publications

References 17 publications

Can minor compaction increase soil carbon sequestration? A case study in a soil under a wheel-track in an orchard

Can minor compaction increase soil carbon sequestration? A case study in a soil under a wheel-track in an orchard

Revegetated herbaceous plant species on a compacted skid road

Curvas de compactação de um Latossolo Vermelho-Amarelo: com e sem reúso de amostras

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