Soil compaction–N interactions in barley: Root growth and tissue composition

Bingham, I. J.; Bengough, A. Glyn; Rees, Robert M.

doi:10.1016/j.still.2009.10.008

Cited by 47 publications

(31 citation statements)

References 35 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: 80%

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: 80%

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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“…Embora o capim-mombaça não tenha sofrido efeito da compactação no segundo corte apresentou, em média, 15,41 g kg -1 de nitrogênio, concentração inferior à do capim-piatã em todas as densidades. Binghan et al (2010), observaram redução na absorção de nitrogênio pela cevada na densidade de 1,1 Mg m -3 ; contudo, quando se aumentou a dose de nitrogênio este efeito desapareceu, demonstrando que a intensificação da adubação amenizou as consequências da compactação e supriu a necessidade de nitrogênio da planta.…”

Section: Resultsunclassified

Compactação do solo e macronutrientes primários na Brachiaria brizantha cv. Piatã e Panicum maximum cv. Mombaça

Cabral

Bonfim-Silva

Bonelli

et al. 2012

Rev. bras. eng. agríc. ambient.

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R ESU M OOs macronutrientes primários possuem papel relevante na adubação de forrageiras, em função da sua participação no custo de produção, razão pela qual se objetivou avaliar os efeitos da compactação na concentração de macronutrientes primários em folhas diagnósticas dos capins Piatã e Mombaça. O experimento foi realizado em casa de vegetação, com delineamento inteiramente casualizado, composto de oito tratamentos e três repetições, em esquema fatorial 2x4, com duas gramíneas (capim-piatã e capim-mombaça) e de quatro densidades do solo (1,0; 1,2; 1,4 e 1,6 Mg m ). Two harvest of shoots were made, the first 42 days after the plant thinning, and the second 46 days after the first cutting. In the first growing period, the soil compaction interfere with the absorption of nitrogen and phosphorus, while in the second growing period there is a limitation in the absorption of nitrogen and potassium. Nitrogen is the primary macronutrient most limited by soil compaction.

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“…It could be stated that these two factors seem to act independently. Bingham et al (2010) also did not find a significant interaction between compaction and nitrogen supply on root growth and biomass production of barley in the experiment with the deficit nitrogen supply. It could be expected that soil compaction leads to limitation in nitrogen uptake by plants.…”

Section: Discussionmentioning

confidence: 61%

“…The important question here is whether these factors act in combination with each other or act independent of one another. Bingham et al (2010) found no interaction between soil compaction and the N fertilization level in an investigation on young barley plants. It could be stated that these two factors seem to act independently.…”

Section: Discussionmentioning

confidence: 82%

Tractor traffic and nitrogen fertilization affect the herbage production of the red clover/grass sward

Głąb

Żabiński

Sadowska

2016

Zemdirbyste-Agriculture

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In recent years, soil compaction caused by agricultural machinery has been recognized as one of the main factors that can lower yields of perennial crops. At the same time changes in grassland fertilization intensity are observed. The objectives of the present study were to evaluate the interaction of different N fertilization rates and the intensity of tractor passes. This study was conducted as a field experiment located on a sandy loam soil classified as Mollic Fluvisol in Mydlniki near Krakow, Poland over a four-year period (2009)(2010)(2011)(2012). The field experiment was established with four replications in a split-plot design with fertilization as the main plot and tractor traffic as the subplot. Three levels of N fertilization: untreated (control), 80 and 160 kg ha -1 N, and four levels of tractor traffic intensity were applied using the following numbers of tractor passes: no passes (control), two passes, four passes and six passes. Nitrogen (N) fertilization significantly affected the percentage of only three species -Trifolium pratense, Lolium perenne and Festuca pratensis in the sward. T. pratense was negatively affected by with higher N rates but two grasses, L. perenne and F. pratensis, showed the opposite response. The tractor traffic significantly affected T. pratense and L. perenne occurrence in the swards. The percentage of T. pratense in the sward was reduced by tractor traffic, and this space was occupied by L. perenne. Changes in the botanical composition reflected in the herbage production. All investigated grass species increased biomass productivity in direct proportion to N rates. Only T. pratense was negatively affected by nitrogen fertilization and since 2011 it started to disappear from the swards treated with higher nitrogen rates. For all investigated components of the mixture no interaction between treatments, tractor traffic and nitrogen fertilization was observed.

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Soil compaction–N interactions in barley: Root growth and tissue composition

Cited by 47 publications

References 35 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

Compactação do solo e macronutrientes primários na Brachiaria brizantha cv. Piatã e Panicum maximum cv. Mombaça

Tractor traffic and nitrogen fertilization affect the herbage production of the red clover/grass sward

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