Impact of Soil Management on Organic Carbon Content and Aggregate Stability

The distribution of nutrients were studied in six soil management units identified viz., Chandipur, Biprodaspur, Pathankhali, Manmathanagar-I, Manmathanagar-II and Bhupendranagar of Gosaba block (part) of sundarbans ecosystem. Data indicated that the soils were strongly acidic (< 4.5) to neutral in reaction and associated with marginal to severe salinity (> 13.3 dS m-1). The organic carbon content ranged from 0.67 to 1.66% in surface and 0.15 to 3.44% in sub-soils. The available nitrogen content varied from 90 to 502 kg ha-1 and it changed significantly with depth. The available phosphorus varied from 0.5 to 24.7 kg ha-1. Available potassium and sulphur in soils are very high, ranging from 178 to 572 kg ha-1 and 25 to 706 mg kg-1 respectively. DTPA -Fe and Mn varied from 18.9 to 336 and 2.17 to 37.6 mg kg-1 in soils being higher in sub-surface horizons, and DTPA- Zn and Cu ranged 0.27 to 4.73 and 0.63 to 14.5 mg kg-1 respectively.

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Spatial Prediction of Soil Aggregate Stability and Aggregate-Associated Organic Carbon Content at the Catchment Scale Using Geostatistical Techniques

Pedosphere ◽

10.1016/s1002-0160(11)60140-9 ◽

2011 ◽

Vol 21 (3) ◽

pp. 389-399 ◽

Cited By ~ 11

Author(s):

J. MOHAMMADI ◽

M.H. MOTAGHIAN

Keyword(s):

Organic Carbon ◽

Carbon Content ◽

Aggregate Stability ◽

Spatial Prediction ◽

Soil Aggregate ◽

Organic Carbon Content ◽

Catchment Scale ◽

Soil Aggregate Stability ◽

Geostatistical Techniques

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Soil Physical Attributes and Organic Carbon in a Cohesive Yellow Latosol (Oxisol) Under Different Soil Management Systems in the Coastal Plains of Bahia, Brazil

Journal of Agricultural Science ◽

10.5539/jas.v10n6p272 ◽

2018 ◽

Vol 10 (6) ◽

pp. 272

Author(s):

Fagner Taiano Dos Santos Silva ◽

Fabiane Pereira Machado Dias ◽

Poliana Dos Santos de Farias ◽

Flávia Melo Moreira ◽

Ludmila De Oliveira De Amorim ◽

...

Keyword(s):

Organic Carbon ◽

Carbon Content ◽

Soil Layer ◽

Soil Management ◽

Liquid Limit ◽

Management Systems ◽

Native Forest ◽

Organic Carbon Content ◽

Coastal Plains ◽

Physical Attributes

Although soil physical attributes are determining factors of soil quality and for root development of crops, they are often neglected when dealing with soil management, which refers only to fertility. The objective of this work was to evaluate soil physical characteristics, organic carbon content and carbon stock levels in yellow Latosol cohesive distrophic coastal plains of Bahia, Brazil, where different soil management systems were implemented. Soil texture, water dispersible clay, flocculation index, soil density and porosity, liquid limit, plastic limit, plasticity index, stability of aggregates, organic carbon content and resistance to penetration were evaluated from soil samples collected in the 40 cm-top soil. The different soil plot covers consisted of (i) Eucalyptus with grasses (EGR), (ii) Eucalyptus with spontaneous vegetation (EVE), (iii) fallow (POU), (iv) pasture (PAS), and (v) native forest (MN). It was found that EVE and MN contributed to greater stability of larger aggregates in the 20-40 cm-soil layer compared to EGR, PAS and POU. The high organic matter contents of soils of the cultivated plots (EVE and EGR) increased the limits of consistency. Soil management systems with Eucalyptus and pasture contributed to accelerate the oxidation process and the loss of C.

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Composted municipal waste effect on chosen properties of calcareous soil

International Agrophysics ◽

10.2478/v10247-012-0051-5 ◽

2012 ◽

Vol 26 (4) ◽

pp. 365-374 ◽

Cited By ~ 8

Author(s):

M. Hamidpour ◽

M. Afyuni ◽

E. Khadivi ◽

A. Zorpas ◽

V. Inglezakis

Keyword(s):

Electrical Conductivity ◽

Hydraulic Conductivity ◽

Organic Carbon ◽

Carbon Content ◽

Soil Ph ◽

Calcareous Soil ◽

Aggregate Stability ◽

Municipal Waste ◽

Organic Carbon Content ◽

Compost Application

Abstract A 3-year field study was conducted to assess effects of composted municipal waste on some properties, distribution of Zn, Cu in a calcareous soil and uptake of these metals by wheat. The treatments were 0, 25, 50 and 100 Mg ha-1 of municipal solidwastewhichwas applied in three consecutive years. The application of composted municipal waste increased the saturated hydraulic conductivity, the aggregate stability,the organic carbon content and electrical conductivity, whereas it slightly decreased the soil pH and bulk density. A significant increase in the concentration of Zn and Cu were observed with increasing number and rate of compost application. The distribution of Zn and Cu between the different fractions in untreated and treated soils showed that the majority of Zn and Cu were in the residual form. Finally, the levels of Zn and Cu were higher in grains of wheat grown in composttreated plots compared to that grown in the control plots.

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Compost and Wildflowers for the Management of Urban Derelict Soils

Applied and Environmental Soil Science ◽

10.1155/2012/832608 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6 ◽

Cited By ~ 3

Author(s):

Roberto Pini ◽

Francesca Bretzel ◽

Enzo Sparvoli ◽

Beatrice Pezzarossa ◽

Manuele Scatena

Keyword(s):

Organic Carbon ◽

Carbon Content ◽

Water Movement ◽

Aggregate Stability ◽

Total Porosity ◽

Individual Species ◽

Organic Carbon Content ◽

Entire Area ◽

Treated Soil ◽

The Individual

The aim of this study was to verify whether the use of source-separated municipal waste compost could improve the physical quality of urban soils and create better conditions for their management when planted with herbaceous species. A sandy soil in traffic islands was tilled to a depth of 10 cm, and half of the surface was treated with compost (3 kg/m2). A mixture of 25 herbaceous annuals was then sown in the entire area. Organic carbon content and physical characteristics were determined at different times in the soil treated and not treated with compost. The vegetation was monitored in terms of its growth and flowering. The compost-treated soil showed an increase in organic carbon content. Total porosity increased with time in the compost-treated soil, due to a higher volume of transmission pores, which play a role in water movement. Soil aggregate stability also improved in the compost-treated soil. The duration of flowering of the individual species and the overall quantity of flowers were greater in the compost-treated soil.

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