The influence of tillage systems on soil organic matter and soil hydrophobicity

Šimon, T.; Javůrek, M.; Mikanová, O.; Vach, M.

doi:10.1016/j.still.2009.05.004

Cited by 94 publications

(61 citation statements)

References 32 publications

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“…moisture content, soil mineralogy). For instance, whole soil samples have been employed in indices of hydrophobicity-hydrophilicity contributed to by OM (Ellerbrock and Gerke, 2004;Ellerbrock et al, 2005;Matejkova and Simon, 2012;Simon, 2007;Šimon et al, 2009;Simonetti et al, 2012). Areas of the aliphatic vs(C-H) band at 3000-2800 cm −1 as the hydrophobic region and a hydrophilic region of vs(C]O) at 1740-1600 cm −1 of whole soil spectra provided hydrophobic/hydrophilic ratios.…”

Section: Som Analysis In Whole Soilsmentioning

confidence: 99%

Soil Chemical Insights Provided through Vibrational Spectroscopy

Parikh

Goyne

Margenot

et al. 2014

Advances in Agronomy

216

163

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Section: Som Analysis In Whole Soilsmentioning

confidence: 99%

Soil Chemical Insights Provided through Vibrational Spectroscopy

Parikh

Goyne

Margenot

et al. 2014

Advances in Agronomy

216

163

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“…The SOM concentration is dependent on soil management (Kladivko 2001;Šimanský et al 2008;Šimon et al 2009;Balashov & Buchkina 2011;Šoltysová & Danilovič 2011;Brown & Huggins 2012;Šimanský & Tobiašová 2012), but in a stable fraction of organic matter, the significant changes can be observed for a long period of time (Hungate et al 1996;Haynes 2005). Recent developments in SOM studies suggest that particulate organic matter (POM) is a good indicator of soil quality and is more sensitive to soil management practices such as tillage and fertilisation than total SOM concentration (Chan et al 2002;Šimanský 2013).…”

mentioning

confidence: 99%

Carbon sequestration and its dynamics in water-stable aggregates

Šimanský¹,

Kováčik²

2014

Agriculture (Pol'nohospodárstvo)

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Sequestration of organic carbon in soils is an effective strategy to mitigate global climate change. Carbon sequestration leads to an increase in carbon stocks in soil, thereby reducing greenhouse gas emissions while improving soil quality and crop production. There are several published articles containing information in which the authors explain carbon sequestration in different soil types under different climatic conditions or farming systems, but on the other hand there is less information about carbon sequestration in water-stable aggregates. In field experiment, the manner in which different soil management practices influence carbon sequestration and its dynamics in water-stable aggregates was studied. We evaluated the soil samples taken from Haplic Luvisol (Dolná Malanta - Slovakia) from all treatments of tillage (conventional, minimal and grassland) and fertilisation (without fertilisation, crop residues together with NPK fertilisers and only NPK fertilisers). The maintenance of carbon concentration within soil under conventional tillage and in native grassland was due to an enhanced incorporation of new organic matter from the coarse fraction of particulate organic matter to macro-aggregates and in treatment with ploughed crop residue together with NPK fertilisers, there was besides of this caused by the reduction of carbon mineralisation from the fine fraction. Soil management practices have a significant effect on the re-distribution of soil organic matter in water-stable aggregates. In conventional and minimal tillage, very important sources of carbon sequestration are agronomical favourable size fractions of water-stable macro-aggregates and in native grassland, as well as in all fertiliser treatments, the most important source of carbon sequestration is water-stable micro-aggregates.

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“…Increases in soil wettability following land clearing are possibly due to major disturbance and tillage practices mixing water-repellent topsoil with wettable subsoil. However, with the adoption of minimum tillage and no-tillage practices during the latter part of the 20th Century, the concentration of soil organic matter (and associated waxes) near the soil surface has increased the incidence of repellency-related problems in agricultural soils (Šimon et al 2009;Blanco-Canqui 2011). Surface soils under no-till cropping can be 1.5-40 times more repellent than soils under conventional tillage (Blanco-Canqui 2011; Roper et al 2013a).…”

Section: Effects Of Soil Water Repellency In Agriculture: Land-use Anmentioning

confidence: 99%

Management options for water-repellent soils in Australian dryland agriculture

Roper

Davies²,

Blackwell³

et al. 2015

Soil Res.

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Abstract. Water-repellent ('non-wetting') soils are a major constraint to agricultural production in southern and south-west Australia, affecting >10 Mha of arable sandy soils. The major symptom is dry patches of surface soil, even after substantial rainfall, directly affecting agricultural production through uneven crop and pasture germination, and reduced nutrient availability. In addition, staggered weed germination impedes effective weed control, and delayed crop and pasture germination increases the risk of wind erosion. Water repellency is caused by waxy organic compounds derived from the breakdown of organic matter mostly of plant origin. It is more prevalent in soils with a sandy surface texture; their low particle surface area : volume ratio means that a smaller amount of waxy organic compounds can effectively cover a greater proportion of the particle surface area than in a fine-textured soil. Water repellency commonly occurs in sandy duplex soils (Sodosols and Chromosols) and deep sandy soils (Tenosols) but can also occur in Calcarosols, Kurosols and Podosols that have a sandy surface texture. Severity of water repellency has intensified in some areas with the adoption of no-till farming, which leads to the accumulation of soil organic matter (and hence waxy compounds) at the soil surface. Growers have also noticed worsening repellency after 'dry' or early sowing when break-of-season rains have been unreliable.Management strategies for water repellency fall into three categories: (i) amelioration, the properties of surface soils are changed; (ii) mitigation, water repellency is managed to allow crop and pasture production; (iii) avoidance, severely affected or poorly producing areas are removed from annual production and sown to perennial forage. Amelioration techniques include claying, deep cultivation with tools such as rotary spaders, or one-off soil inversion with mouldboard ploughs. These techniques can be expensive, but produce substantial, long-lasting benefits. However, they carry significant environmental risks if not adopted correctly. Mitigation strategies include furrow-seeding, application of wetting agents (surfactants), no-till with stubble retention, on-row seeding, and stimulating natural microbial degradation of waxy compounds. These are much cheaper than amelioration strategies, but have smaller and sometimes inconsistent impacts on crop production. For any given farm, economic analysis suggests that small patches of water repellency might best be ameliorated, but large areas should be treated initially with mitigation strategies. Further research is required to determine the long-term impacts of cultivation treatments, seeding systems and chemical and biological amendments on the expression and management of water repellency in an agricultural context.

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The influence of tillage systems on soil organic matter and soil hydrophobicity

Cited by 94 publications

References 32 publications

Soil Chemical Insights Provided through Vibrational Spectroscopy

Soil Chemical Insights Provided through Vibrational Spectroscopy

Carbon sequestration and its dynamics in water-stable aggregates

Management options for water-repellent soils in Australian dryland agriculture

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