Critical soil bulk density and strength for pea seedling root growth as related to other soil factors

Pabin, J.; Lipiec, Jerzy; Włodek, S.; Biskupski, A.; Kaus, A.

doi:10.1016/s0167-1987(98)00098-1

Cited by 63 publications

(57 citation statements)

References 13 publications

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“…This confirms that θ and BD were the main factors influencing the PR values in both sampling positions, since there was no variation in soil composition used in this study. These results agree with arguments of several authors on the influence of these physical properties on PR (Camp & Lund, 1968;Campbell & O'Sullivan, 1991;Pabin et al, 1998). Thus, it can be stated that the proposed equipment was both sensitive to changes in soil moisture and structural conditions.…”

Section: Soil Resistance To Penetrationsupporting

confidence: 92%

Improvement of a testing apparatus for dynamometry: procedures for penetrometry and influence of strain rate to quantify the tensile strength of soil aggregates

Figueiredo

Silva

Tormena

et al. 2011

Rev. Bras. Ciênc. Solo

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SUMMARYSoil penetration resistance (PR) and the tensile strength of aggregates (TS) are commonly used to characterize the physical and structural conditions of agricultural soils. This study aimed to assess the functionality of a dynamometry apparatus by linear speed and position control automation of its mobile base to measure PR and TS. The proposed equipment was used for PR measurement in undisturbed samples of a clayey "Nitossolo Vermelho eutroférrico" (Kandiudalfic Eutrudox) under rubber trees sampled in two positions (within and between rows). These samples were also used to measure the volumetric soil water content and bulk density, and determine the soil resistance to penetration curve (SRPC). The TS was measured in a sandy loam "Latossolo Vermelho distrófico" (LVd) -Typic Haplustox -and in a very clayey "Nitossolo Vermelho distroférrico" (NVdf) -Typic Paleudalf -under different uses: LVd under "annual crops" and "native forest", NVdf under "annual crops" and "eucalyptus plantation" (> 30 years old). To measure TS, different strain rates were applied using two dynamometry testing devices: a reference machine (0.03 mm s -1 ), which has been widely used in other studies, and the proposed equipment

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Section: Soil Resistance To Penetrationsupporting

confidence: 92%

Improvement of a testing apparatus for dynamometry: procedures for penetrometry and influence of strain rate to quantify the tensile strength of soil aggregates

Figueiredo

Silva

Tormena

et al. 2011

Rev. Bras. Ciênc. Solo

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“…Assim, possivelmente, o crescimento de raízes foi restringido antes da Dsc de 1,63 Mg m -3 . Pabin et al (1998) afirmam que muitas vezes ocorrem mudanças e redução no comprimento do sistema radicular, que mantém, satisfatoriamente, o suprimento de água e nutrientes para a parte aérea, não refletindo em menor produtividade, sendo a redução de 40% do crescimento radicular crítica à produtividade plantas. Isso justifica a redução da produtividade do arroz a partir da densidade do solo crítica.…”

Section: Resultsunclassified

Compactação do solo e intervalo hídrico ótimo na produtividade de arroz de sequeiro

Beutler

Centurion

Silva³

et al. 2004

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi determinar o intervalo hídrico ótimo e sua relação com a produtividade de grãos de arroz de sequeiro em um Latossolo Vermelho de textura média. Os tratamentos foram 0, 1, 2, 4 e 6 passadas de um trator, lado a lado, na superfície do solo, com quatro repetições. O delineamento experimental foi inteiramente casualizado. Foram coletadas amostras indeformadas de solo nas camadas de 0,02-0,05, 0,07-0,10 e 0,15-0,18 m para determinação da resistência do solo à penetração, densidade do solo, intervalo hídrico ótimo, densidade do solo crítica e da curva de retenção de água no solo. Em parcelas de 3,6 m 2 foi semeado arroz de sequeiro (cv. Caiapó) e a sua produtividade foi avaliada em parcelas úteis de 1,80 m 2 . O intervalo hídrico ótimo foi reduzido a partir da densidade do solo de 1,30 Mg m -3 pela resistência do solo à penetração. A partir do valor de 1,82 MPa ocorreu decréscimo da produtividade de arroz. A densidade do solo crítica ao desenvolvimento radicular no intervalo hídrico ótimo foi de 1,63 Mg m -3 , equivalente a 1,62 Mg m -3 que foi limitante na produtividade de arroz. O monitoramento da compactação do solo é necessário para prevenir perdas na produtividade de arroz de sequeiro.Termos para indexação: Oryza sativa, resistência do solo à penetração, água no solo, qualidade física do solo. Soil compaction and least limiting water range in dryland rice yieldAbstract -The objective of this work was to determine the least limiting water range and its relation with dryland rice yield in a medium texture Oxisol. The treatments were 0, 1, 2, 4 and 6 passed of a tractor, side by side, on soil surface. The experimental design was a completely randomized, with four repetitions. Indeformed soil samples were collected in the layers 0.02-0.05, 0.07-0.10 and 0.15-0.18 m for determination of soil resistance to penetration, bulk density, least limiting water range, critical bulk density and soil water retention curve. In 3.6 m 2 plots dryland rice (cv. Caiapó) was sown and its yield in useful parcels of 1.80 m 2 was evaluated. The least limiting water range was reduced from bulk density of 1.30 Mg m -3 by soil resistance to penetration. From 1.82 MPa on decrease of rice yield occurred. Critical bulk density to root development in the least limiting water range was 1.63 Mg m -3 , equivalent to 1.62 Mg m -3 of bulk density, that is critical to rice yield. The monitoring of soil compaction is necessary to prevent losses in dryland rice yield.

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“…Any resistance over 2.0 MPa can significantly reduce root growth and development (Oussible et al 1992, Ishaq et al 2001. The optimum soil bulk density for growth and yield was detected to be between 1.40 and 1.68 mg/m 3 (Czyż 2004) for spring barley, and varied from 1.55 mg/m 3 to 1.77 mg/m 3 for pea roots at different field water capacity and soil textures (Pabin et al 1998). In the present study, 0.025 MPa (P 1 ) soil contact pressure caused less than 1.10 MPa penetration resistance and 1.33 mg/m 3 soil bulk density at the 0-10 cm soil depth, and less than 1.70 MPa penetration resistance and 1.43 mg/m 3 soil bulk density at the 10-20 cm soil depth, within the compaction treatments.…”

Section: Soil Bulk Density and Penetration Resistancementioning

confidence: 96%

Silage maize (Zea mays L.) seedlings emergence as influenced by soil compaction treatments and contact pressures

Taşer¹,

Kara²

2005

Plant Soil Environ.

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Soil compaction caused by mechanical force affects the vegetative and generative plant growth. Field experiments were conducted to study the effects of soil compaction treatments and soil contact pressures on bulk density, penetration resistance and silage maize emergence in a clay-loam soil. Soil compaction treatments were applied while planting as follows: Compaction on furrow surface (F-surface), compaction on furrow bo�om (F-bo�om), compaction on inter row (I-row), and non-extra compaction as a control (C). The soil contact pressures of 0.025, 0.051 and 0.076 MPa were applied while the control was 0.0085 MPa. Significant differences between soil compaction treatments and contact pressures were recorded in bulk density, penetration resistance and silage maize emergence. Percentage of emerged seedlings increased as the soil contact pressure was increased slightly. The lowest mean percentage of emerged seedlings (52.63%) was obtained with 0.076 MPa contact pressure in F-surface treatment and the highest mean value (81.58%) was obtained with 0.025 MPa contact pressure in F-bo�om compaction treatment. The control treatment gave the 69% mean value under the non-irrigated condition.Keywords: soil compaction treatments; soil contact pressures; soil physical properties; maize emergence 290PLANT SOIL ENVIRON., 51, 2005 (7): 289-295 through August rainfall was less than 360 mm in Minnesota (USA). A similar study was performed by Gameda et al. (1983) who found that when May through September rainfall was less than 360 mm in Quebec (Canada), corn yield increased as tire-soil contact pressure was increased slightly. Above the 530 mm rainfall, corn yield decreased as tire-soil contact pressure was increased.Some researchers explained that soil compaction by traffic might have an effect on yield. Ngunjiri and Siemens (1995) concluded that the corn yield was affected by wheel traffic compaction. The yield was found significantly lower on entire plot compaction treatment than the yield from no wheel compaction on rows and between rows compaction treatments. Similar results were presented by Bayhan et al. (2002). Honsson and Reeder (1994) reported that repeated wheel traffic on agricultural soils in seven different countries of Europe and North America caused 14% crop yield loss. As penetrometer resistance increased, mean emergence date was delayed and percentage of emerged seedling decreased. Bilbro and Wanjura (1982), Unger and Kaspar (1994) came to similar conclusions. They suggested that field traffic treatments resulted in soil compaction and decreased yield.Many others examined the effect of soil compaction on crop growth and yield. In some of these studies, compactions were applied on inter-rows, furrow surface, and then yields were evaluated and compared. Effects of furrow bottom compaction on second crop silage maize germination as well as the other compaction treatments with different soil contact pressures have not been studied sufficiently so far.In this study, effects of different soil compaction treatment...

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Critical soil bulk density and strength for pea seedling root growth as related to other soil factors

Cited by 63 publications

References 13 publications

Improvement of a testing apparatus for dynamometry: procedures for penetrometry and influence of strain rate to quantify the tensile strength of soil aggregates

Improvement of a testing apparatus for dynamometry: procedures for penetrometry and influence of strain rate to quantify the tensile strength of soil aggregates

Compactação do solo e intervalo hídrico ótimo na produtividade de arroz de sequeiro

Silage maize (Zea mays L.) seedlings emergence as influenced by soil compaction treatments and contact pressures

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