Improvement of soil structure formation by degradation of coarse organic matter

Grosbellet, C.; Vidal-Beaudet, Laure; Caubel, Virginie; Charpentier, Sylvain

doi:10.1016/j.geoderma.2011.01.003

Cited by 100 publications

(57 citation statements)

References 52 publications

(57 reference statements)

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“…Organic matter is of major importance for the stabilisation of aggregates (Six et al, 2004). Grosbellet et al (2011) showed that when organic particles break down, they surround the aggregates already present in the soil with a fine film and protect them from degradation.…”

Section: Discussionmentioning

confidence: 99%

Effects of Vermicompost and Water Treatment Residuals on Soil Physical Properties and Wheat Yield

Mahmoud¹,

Mahmoud²,

Ibrahim³

2015

International Agrophysics

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The application of vermicompost and water treatment residuals to improve the physical properties in the salt affected soils is a promising technology to meet the requirements of high plant growth and cost-effective reclamation. Therefore, the aim of this study was to investigate the effect of vermicompost and its mixtures with water treatment residuals on selected physical properties of saline sodic soil and on wheat yield. The treatments were vermicompost, water treatment residuals, vermicompost + water treatment residuals (1:1 and 2:1 wet weight ratio) at levels of 5 and 10 g dry weight kg-1 dry soil. The considered physical properties included aggregate stability, mean weight diameter, pore size distribution and dry bulk density. The addition of vermicompost and water treatment residuals had significant positive effects on the studied soil physical properties, and improved the grain yield of wheat. The treatment of (2 vermicompost + 1 water treatment residuals) at level of 5 g kg-1 soil gave the best grain yield. Combination of vermicompost and water treatment residuals improved the water treatment residuals efficiency in ameliorating the soil physical properties, and could be considered as an ameliorating material for the reclamation of salt affected soils.

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Section: Discussionmentioning

confidence: 99%

Effects of Vermicompost and Water Treatment Residuals on Soil Physical Properties and Wheat Yield

Mahmoud¹,

Mahmoud²,

Ibrahim³

2015

International Agrophysics

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“…Although Grosbellet et al (2011) revealed that the improvement of soil physical properties increased over time with the incorporation of organic matter and it could affect runoff, Leys et al (2007) showed in their experimental cases that crusting and total soil cover were more important in controlling runoff/soil losses than the organic matter content or the texture.…”

Section: Soil Lossesmentioning

confidence: 96%

Coffee husk mulch on soil erosion and runoff: experiences under rainfall simulation experiment

Moreno-Ramón¹,

Quizembe²,

Ibáñez-Asensio³

2014

Solid Earth

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Abstract. The high erosion rates found in the agriculture land make valuable the use of mulches to control the soil and water losses. Coffee husk (Coffea canephora var. robusta) can be one of those mulches. This paper evaluates how to apply the mulch in order to obtain the best effectiveness. An experimental factorial design 4 × 3 × 2 with two replicates was designed in a greenhouse with a total number of 48 cases. All the samples were deposited in trays of 0.51 m 2 and applied a simulated rain of 122 mm h −1 during 21 min. The factors examined were the following: four soil classes; three treatments -buried (B), surface (S) and non-residue (C) -and the presence (WC) or absence (WOC) of the soil surface crusting. The coffee husk residue (S and B treatments) reduced runoff by 10.2 and 46 % respectively, soil losses by 78.3 and 88.7 % and sediment concentration by 77 and 84.4 %. The infiltration rate increased on average by 104 and 167 %, and time to runoff by 1.58 and 2.07 min respectively. Coffee husk is an efficient mulch to reduce the soil and water losses, although it could not completely cushion the influence of crust.

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“…Changes in soil structure will have a negative impact on oxygen transport if pore connectivity is decreased or positive if pore connectivity improves. Some effects of OM on soil structure are known (Dexter, 2004;Ellies, 2004;Six et al, 2004;Ellies et al, 2005;Grosbellet et al, 2011) but there is not much information about the effect of SOM on gas diffusion (Resurreccion et al, 2007), although effects of SOM on soil characteristics important for oxygen diffusion, such as the stability of aggregates and the pore matrix, have been reported (Dexter, 2004;Ellies, 2004;Six et al, 2004;Ellies et al, 2005;Grosbellet et al, 2011;Hamamoto et al, 2012;Uteau et al, 2013).…”

Section: Effect Of Som On the Soil Structure And On The Soil Oxygen Dmentioning

confidence: 99%

Oxygen diffusion in soils: Understanding the factors and processes needed for modeling

Neira-Román¹,

Ortiz²,

Morales

et al. 2015

Chilean J. Agric. Res.

119

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Oxygen is an important element for plant growth. Reducing its concentration in the soil affects plant physiological processes such as nutrient and water uptake as well as respiration, the redox potential of soil elements and the activity of microorganisms. The main mechanism of oxygen transport in the soil is by diffusion, a dynamic process greatly influenced by soil physical properties such as texture and structure, conditioning, pore size distribution, tortuosity and connectivity. Organic matter is a modifying agent of the soil's chemical and physical properties, affecting its structure and the porous matrix, which are determinants of oxygen transport. This study reviews the theory of soil gas diffusion and the effect of soil organic matter on the soil's physical properties and transport of gases. It also reviews gas diffusion models, particularly those including the effect of soil organic matter.

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Improvement of soil structure formation by degradation of coarse organic matter

Cited by 100 publications

References 52 publications

Effects of Vermicompost and Water Treatment Residuals on Soil Physical Properties and Wheat Yield

Effects of Vermicompost and Water Treatment Residuals on Soil Physical Properties and Wheat Yield

Coffee husk mulch on soil erosion and runoff: experiences under rainfall simulation experiment

Oxygen diffusion in soils: Understanding the factors and processes needed for modeling

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