Use of a penetration resistance characteristic to predict soil strength development during drying

Weaich, Karl

doi:10.1016/0167-1987(92)90108-n

Cited by 34 publications

(23 citation statements)

References 26 publications

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“…However, the magnitude of the effect increased with increasing soil resistance. Weaich et al (1992) found reduction in corn shoot elongation at high soil mechanical resistance. Vyn & Raimbult (1993) also observed a negative relationship between corn growth and bulk density and soil resistance.…”

Section: Resultsmentioning

confidence: 92%

“…Vyn & Raimbult (1993) also observed a negative relationship between corn growth and bulk density and soil resistance. Bristow & Abrecht (1989) and Weaich et al (1992) reported a negative relationship between corn shoot elongation and soil resistance. Moreover, Masle & Passioura (1987) and Passioura & Gardner (1990) observed a decrease in wheat shoot growth due to increase in soil resistance in experimental conditions with non-limiting conditions associated with water, nutrients and carbon supply.…”

Section: Resultsmentioning

confidence: 99%

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Plant response to mechanical resistance and air-filled porosity of soils under conventional and no-tillage system

Silva¹,

Imhoff²,

Kay³

2004

Sci. agric. (Piracicaba, Braz.)

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Roots may respond to restrictive soil physical conditions and send signals to shoots to control plant growth. Soil mechanical resistance and aeration can be managed to improve the soil physical conditions for plant growth by using different tillage systems. The objective of this study was to quantify the influence of no-tillage and conventional-tillage systems on plant response to soil mechanical resistance and aeration. The study was carried out on a farm, cultivated with corn, with a side-by-side comparison of no-tillage and conventional-tillage systems. Thirty-two paired sampling sites were located along two transects, located one in each treatment. Soil water content, bulk density, and plant growth were measured in each treatment. Based on the soil water and bulk density measurements, the air-filled porosity values were computed for each treatment. Soil water contents and bulk density values were converted to soil mechanical resistance by using the soil resistance curve. Plant growth varied positively with soil air-filled porosity, and negatively with soil mechanical resistance in both tillage systems. However, the decrease rates/increase rates were dependent on the tillage system. The no-tillage system somehow improved the soil physical conditions for the plants, especially when they were more restrictive, allowing them to attain greater values of growth. Key words: plant growth, plant height, soil physical properties, tillage system RESPOSTA DE PLANTAS À RESISTÊNCIA MECÂNICA E POROSIDADE DE AERAÇÃO DE SOLOS SOB PREPARO CONVENCIONAL E PLANTIO DIRETORESUMO: As raízes podem responder à ocorrência de condições físicas restritivas no solo e enviar sinais parte aérea para controlar o crescimento da planta. A resistência mecânica e a aeração do solo podem ser alteradas para melhorar as condições físicas do solo para o crescimento das plantas por meio do emprego de diferentes sistemas de preparo do solo. O objetivo deste trabalho foi quantificar a influência dos sistemas preparo convencional e plantio direto na resposta das plantas da cultura de milho à resistência mecânica e aeração do solo. O estudo foi desenvolvido numa fazenda que apresentava uma parcela com preparo convencional localizada ao lado de outra sob plantio direto.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Plant response to mechanical resistance and air-filled porosity of soils under conventional and no-tillage system

Silva¹,

Imhoff²,

Kay³

2004

Sci. agric. (Piracicaba, Braz.)

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“…Esse comportamento da resistência do solo é mencionado por vários autores, para solos e sistemas de manejo diferentes (Silva et al, 1994;Busscher et al, 1997;Tormena et al, 1998). (Taylor et al, 1966;Weaich et al, 1992;Silva et al, 1994), foi determinada rearranjando a equação (7) e inserindo o valor de 2 MPa para RP.…”

Section: Resultsunclassified

Quantificação de pressões críticas para o crescimento das plantas

Imhoff

Silva

Dias

et al. 2001

Rev. Bras. Ciênc. Solo

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“…Soil penetration resistance tests (MPa; Weaich et al 1992) were carried out in each pot using a portable penetrometer (Basic Force Gauge, Mecmesin, UK; cone diameter of 2.96 mm and cone angle of 30°) to quantify the hydrologic reinforcement in the soil due to transpiration-induced suction. Soil resistance was determined by penetrating the cone to 35 mm depth from the soil surface.…”

Section: Soil Penetration Resistancementioning

confidence: 99%

Correlating hydrologic reinforcement of vegetated soil with plant traits during establishment of woody perennials

2017

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Background and aims Vegetation stabilizes slopes via root mechanical reinforcement and hydrologic reinforcement induced by transpiration. Most studies have focused on mechanical reinforcement and its correlation with plant biomechanical traits. The correlations however generally ignore the effects of hydrologic reinforcement. This study aims to quantify the hydrologic reinforcement associated with ten woody species and identify correlations with relevant plant traits. Methods Ten species widespread in Europe, which belong to Aquifoliaceae, Betulaceae, Buxaceae, Celastraceae, Fabaceae, Oleaceae and Salicaceae families, were planted in pots of sandy loam soil. Each planted pot was irrigated and then left to transpire. Soil strength, matric suction and plant traits were measured. Results Transpiration-induced suction was linearly correlated with soil penetration resistance for the ten species due to their different transpiration rates i.e. both suction and soil penetration resistance induced by Hazel and Blackthorn (deciduous) were five times greater than those by Holly and European Box (evergreens). Specific leaf area and root length density correlated with hydrologic reinforcement. The root:shoot ratio correlated best with the hydrologic reinforcement. Conclusions Specific leaf area, root length density and root:shoot ratio explained the tenfold differences in hydrologic reinforcement provided by the ten different species.

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Use of a penetration resistance characteristic to predict soil strength development during drying

Cited by 34 publications

References 26 publications

Plant response to mechanical resistance and air-filled porosity of soils under conventional and no-tillage system

Plant response to mechanical resistance and air-filled porosity of soils under conventional and no-tillage system

Quantificação de pressões críticas para o crescimento das plantas

Correlating hydrologic reinforcement of vegetated soil with plant traits during establishment of woody perennials

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