Wheel-Induced Soil Physical Limitations to Root Growth

Voorhees, W. B.

doi:10.1007/978-1-4612-2894-3_4

Cited by 47 publications

(23 citation statements)

References 30 publications

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“…Similar findings were reported by Ishaq et al (2001) who recorded a 17% increase in BD of soil compacted below 15 cm depth. Voorhees (1992) and Oussible et al (1992) reported that subsurface compaction significantly increased the BD on a clay loam soil compared to that of the control, and the effect persisted for 1-4 years after compaction. Balbuena et al (2000) explained how BD increased with compaction and reported that traffic on freshly tilled soils produced, not only a modification in the distribution of macropores within the profile, but also a reduction of aggregate size.…”

Section: Effect On Bulk Density and Total Porositymentioning

confidence: 94%

Effects of subsoil compaction on yield and yield attributes of wheat in the sub-humid region of Pakistan

Hassan

Ahmad

et al. 2007

Soil and Tillage Research

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Section: Effect On Bulk Density and Total Porositymentioning

confidence: 94%

Effects of subsoil compaction on yield and yield attributes of wheat in the sub-humid region of Pakistan

Hassan

Ahmad

et al. 2007

Soil and Tillage Research

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“…There is extensive evidence to show that soil compaction limits root penetration and may restrict the ability of the plant to absorb water from the subsoil, particularly in semi-arid environments (Holloway, 1991;Voorhees, 1992). When roots cannot penetrate deeply because of compaction, crops are susceptible to drought and consequent yield reduction occurs (Hhkansson et al, 1987;Oussible et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of laboratory techniques for predicting the ability of roots to penetrate strong soil and of the influence of roots on water sorptivity

et al. 1993

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The ability of two laboratory screening techniques to predict the abilities of roots of eight crop species to penetrate a compacted soil were evaluated and compared in a field experiment. A soil tilled to remove the effects of mechanical resistance was planted with the same species to serve as a control. Depth of root penetration, root density and the influence of the roots on the sorptivity of water were measured.Roots of all species penetrated deeper in the deep tilled than compacted soils. There were differences in the ability of roots of the species to penetrate the compacted soil. Generally dicotyledonous species had more roots penetrating to depth in both the compact and deep tilled soils. Within the main species classifications, lupin and safflower (dicotyledons) and oats and barley (monocotyledons) had the highest penetration into the compacted soil.Water sorptivities in the deep tilled soils were higher than those of the compact soil. Soil from planted treatments had higher sorptivities than soil which had not been planted. This is attributed to biopores left by the roots. Sorptivities of soils which had dicotyledonous species were generally higher than those of monocotyledons. The soil planted with safflower produced the highest sorptivity in the compacted layer (0.1-0.3 m).A comparison of the accuracy of the two laboratory screening methods in predicting the field penetration of roots suggest that the method involving mechanical stress was better than that involving osmotic stress. Relative root diameter was found to be a better indicator of the penetration ability of roots than relative root elongation.

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“…A compactação pode modificar a estrutura, a forma e a continuidade dos poros, reduzindo principalmente a porosidade do solo, com reflexos negativos na produtividade agrícola. A compactação é dependente do teor de matéria orgânica, umidade, mineralogia do solo, tipo, quantidade e duração da pressão aplicada (VOORHEES, 1992), dimensões e pressão de inflação dos pneus (SOANE et al, 1981). Diferentes valores de pressão pneumática têm sido recomendados (ALAKUKKU et al, 2003).…”

Section: Significativas De Ic Nos Experimentos a E C (Figura 1)unclassified

Compressibilidade de um Argissolo sob plantio direto escarificado e compactado

Lima¹,

Reinert²,

Reichert³

et al. 2006

Cienc. Rural

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RESUMO A compressibilidade do solo é dependente do tipo, da intensidade, da freqüência da força aplicada por máquinas agrícolas e dos sistemas de manejo adotados. O objetivo deste estudo foi avaliar o efeito da intensidade do tráfego de máquinas 2001/ 2002, 2002/2003 e 2001/2002 -2002/2003 2001/2002, 2002 and 2001/2002-2002 (MCNABB & BOERSMA, 1993) is a potential tool to determine the bulk density of soils under no tillage, starting from the initial bulk density and the loads to be applied in the soil.

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Wheel-Induced Soil Physical Limitations to Root Growth

Cited by 47 publications

References 30 publications

Effects of subsoil compaction on yield and yield attributes of wheat in the sub-humid region of Pakistan

Effects of subsoil compaction on yield and yield attributes of wheat in the sub-humid region of Pakistan

Field evaluation of laboratory techniques for predicting the ability of roots to penetrate strong soil and of the influence of roots on water sorptivity

Compressibilidade de um Argissolo sob plantio direto escarificado e compactado

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