Qualidade física de um Latossolo Vermelho cultivado com soja submetido a níveis de compactação e de irrigação

Oliveira, Paula Regina de; Centurion, José Frederico; Centurion, Maria Aparecida Pessôa da Cruz; Franco, Helena Baroni Junqueira; Pereira, Fabiana de Souza; Júnior, L. S.; Rossetti, Karina de Vares

doi:10.1590/s0100-06832012000200028

Cited by 15 publications

(19 citation statements)

References 29 publications

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“…The reduction in aeration and water availability in the soil due to a decrease in porosity caused by soil compaction causes a decrease in crop yields [4].…”

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confidence: 99%

Bulk Density in Jack Bean’s Development Grown in Cerrado Oxisol

Bonfim-Silva¹,

Paludo²,

Silva³

et al. 2015

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The use of cover plants promotes the recycling of nutrients and the increase in organic mass, and minimizes the effects of erosion. The objective was to evaluate the effect of bulk density in the development of jack bean (Canavalia ensiformis) in Cerrado Oxisol. The experiment was conducted in a greenhouse at the Federal University of Mato Grosso, Rondonópolis-MT, in the period from June to September 2013. Oxisol was used from a Cerrado reserve area, collected at 0 -0.20 m depth. The experimental design was completely randomized, corresponding to bulk density levels (1.0, 1.2, 1.4, 1.6 and 1.8 Mg•m −3 ), and five replications. The experimental plot consisted of three PVC rings (polyvinyl chloride) with 150 mm internal diameter, 300 mm total height, where the upper and lower rings of pots were filled with 1.0 Mg•m −3 density soil and intermediaries according to bulk density treatments. The results were submitted to variance analysis and, when significant, to regression analysis, both with a 5% probability, using SISVAR software. At 60 days after germination, number of leaves, stem diameter, plant height, dry mass of leaves, stem dry mass, dry mass of roots, dry mass of nodules, number of nodules and chlorophyll index (SPAD index) were evaluated. The increase in bulk density negatively influences the development of jack bean, showing little efficiency as a decompacting plant in Cerrado Oxisol.

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“…The reduction in aeration and water availability in the soil due to a decrease in porosity caused by soil compaction causes a decrease in crop yields [4].…”

mentioning

confidence: 99%

Bulk Density in Jack Bean’s Development Grown in Cerrado Oxisol

Bonfim-Silva¹,

Paludo²,

Silva³

et al. 2015

AJPS

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“…Giarola et al (2009) worked with a soil similar to the present study, which showed a clay content of much higher than 65% (very argillaceous). Oliveira et al (2012) worked with an argillaceous soil, that is, a clay content between 35 and 65%. However, used a medium texture soil in their experiment (a clay content between 15 and 35%).…”

Section: Resultsmentioning

confidence: 99%

“…Several authors indicate that soil compacting reduces the root growth of soybean plants. However, it is possible that the reduction of the volume of soil explored by the roots may not be sufficient to restrict the supply of water and nutrients to the aerial parts of the plants, thus maintaining the production of the culture Giarola et al, 2009;Oliveira et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

“…Several studies have examined the effects of soil compaction in the development of plants in several types of soil, but they are not conclusive with regard to the values of soil density and resistance to penetration that are considered limiting factors since good moisture conditions may supplement the lower volume of soil used by the roots to supply the plant with water and nutrients (Oliveira et al, 2012;Gao, Whalley, Tian, Liu, & Ren, 2016;Moraes et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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<b>Soybean productivity in Rhodic Hapludox compacted by the action of furrow openers

et al. 2018

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ABSTRACT. The heavy traffic of machines in no-tillage systems causes problems as soil compaction and loss of crops productivity. The objective of this paper is to evaluate the productivity of soybeans in reference to furrow openers and the levels of soil compaction in two crops. The experiment was conducted on Rhodic Hapludox by tracing random blocks with subdivided parcels. The soil bulk density levels were laid out in the parcels (1.16, 1.20, 1.22, and 1.26 Mg m -3) and the furrowers in the sub-parcels (double disc and shanks). The resistance to penetration, depth of the furrow, mobilized soil area, final plant stands, height of plants, mean number of beans by pod, 1,000 bean mass, number of pods per plant and productivity of the culture were evaluated. The resistance to penetration increased with the levels of soil compaction regardless of the farming year and up to a depth of 0.20 m. In the first crop, higher productivity with the use of the shank was observed. In the second crop, the use of the shank resulted in an increase in depth of the furrow, mobilized soil, height of the plants and final stand of the plants, but this did not indicate an increase in productivity.

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“…No caso da soja (Glycine max L.) a cultura foi influenciada pela compactação do solo e níveis elevados de irrigação; esses fatores foram determinantes para redução da altura das plantas e da produtividade; essa última foi máxima quando a resistência do solo à penetração apresentou valor de 0,71 Mpa. Segundo os autores, o aumento da compactação proporciona aumento no diâmetro das raízes, o que é prejudicial ao desenvolvimento do sistema radicular (OLIVEIRA et al, 2012).…”

Section: Atributos Físico-químicos Do Solo E O Desenvolvimento Radicularunclassified

Aspectos produtivos e fisiológicos de cultivares de feijão irrigado

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Qualidade física de um Latossolo Vermelho cultivado com soja submetido a níveis de compactação e de irrigação

Cited by 15 publications

References 29 publications

Bulk Density in Jack Bean’s Development Grown in Cerrado Oxisol

Bulk Density in Jack Bean’s Development Grown in Cerrado Oxisol

<b>Soybean productivity in Rhodic Hapludox compacted by the action of furrow openers

Aspectos produtivos e fisiológicos de cultivares de feijão irrigado

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