Variability of clay mineralogy in two New Zealand steep-land topsoils under pasture

Officer, S. J.; Tillman, R. W.; Palmer, Alan; Whitton, J. S.

doi:10.1016/j.geoderma.2004.11.027

Cited by 26 publications

(18 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dissolution of these minerals in soil under intensive grazing could also be evidenced by low values of the relationships between the areas of reflection ≅1.000 nm and reflections of kaolinite in the hkl surfaces 001 and 002 (Table 6). In soil used for crop cultivation, the XRDs patterns of samples of both management systems (NTM and NTPL) were similar to those of the soil under NGr diffraction (Figure 2 processes of clay minerals in the soil under pasture with cattle droppings compared to natural soil (NGr) was previously found in equally well-drained soils used for grazing with high stocking rates (Officer et al, 2006) as well as in soil under long-term and their ratios in a Rhodic Paleudult under four land use and management systems grapevine cultivation (Bortoluzzi et al, 2012). In our study, this possibility was reinforced by significant increases in elements such as Si, Al and K in the soil solution under pasture with cattle droppings (Table 4).…”

Section: X-ray Diffraction (Xrd)supporting

confidence: 62%

“…On the other hand, the cattle droppings in GrP resulted in significant increases in most elements such as K, Na, due to the high concentration of these elements in bovine urine; and P, Mg and Ca, due to their concentration in cattle dung (Moreira et al, 2010). Also noteworthy was the significant increase in Fe, Al and Si concentrations in the soil solution under grazed pasture (GrP), which may be associated with processes of mineral dissolution/transformation (Azevedo et al, 1996;Officer et al, 2006;Zanelli et al, 2007;Inda et al, 2010;.…”

Section: Chemical Composition Of the Soil Solutionmentioning

confidence: 99%

“…Also under controlled conditions, the formation of organo-mineral complexes demonstrated the effectiveness of some organic binders to promote depolymerization of the interlayers of HIV and HIS clay minerals (Indraratne et al, 2007;Huang et al, 2007). In soil under intensive grazing, the transformation HIV → V was attributed to the pH increase and factors resulting from concentrated urine and manure droppings (Officer et al, 2006). The transformation of illite → V in an Entisol was intensified by long-term grapevine cultivation (40 years) compared to the soil under native vegetation (Bortoluzzi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chemical and mineralogical changes in a Brazilian Rhodic Paleudult under different land use and managements

Fink

Inda

Almeida

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Changes in land use and management can affect the dynamic equilibrium of soil systems and induce chemical and mineralogical alterations. This study was based on two long-term experiments (10 and 27 years) to evaluate soil used for no-tillage maize cultivation, with and without poultry litter application (NTPL and NTM), and with grazed native pasture fertilized with cattle droppings (GrP), on the chemical and mineralogical characteristics of a Rhodic Paleudult in Southern Brazil, in comparison with the same soil under native grassland (NGr). In the four treatments, soil was sampled from the 0.0-2.5 and 2.5-5.0 cm layers. In the air-dried fine soil (ADFS) fraction (∅ < 2 mm), chemical characteristics of solid and liquid phases and the specific surface area (SSA) were evaluated. The clay fraction (∅ < 0.002 mm) in the 0.0-2.5 cm layer was analyzed by X-ray diffraction (XRD) after treatments for identification and characterization of 2:1 clay minerals. Animal waste application increased the total organic C concentration (COT) and specific surface area (SSA) in the 0.0-2.5 cm layer. In comparison to NGr, poultry litter application (NTPL) increased the concentrations of Ca and CECpH7, while cattle droppings (GrP) increased the P and K concentrations. In the soil solution, the concentration of dissolved organic C was positively related with COT levels. With regard to NGr, the soil use with crops (NTM and NTPL) had practically no effect on the chemical elements in solution. On the other hand, the concentrations of most chemical elements in solution were higher in GrP, especially of Fe, Al and Si. The Fe and Al concentrations in the soil iron oxides were lower, indicating reductive/complexive dissolution of crystalline forms. The X-ray diffraction (XRD) patterns of clay in the GrP environment showed a decrease in intensity and reflection area of the 2:1 clay minerals. This fact, along with the intensified Al and Si activity in soil solution indicate dissolution of clay minerals in soil under cattle-grazed pasture fertilized with animal droppings.

show abstract

Section: X-ray Diffraction (Xrd)supporting

confidence: 62%

Section: Chemical Composition Of the Soil Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Chemical and mineralogical changes in a Brazilian Rhodic Paleudult under different land use and managements

Fink

Inda

Almeida

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…In addition to the pH and ion activity in the solution, the stability of clay minerals with interlayered Al hydroxyl can be affected by the accumulation of soil organic matter (SOM) in the surface layers of no-tilled soils, due to potential Alcomplexes in the soil solution (Salet et al, 1999;Ciotta et al, 2002). A similar effect was observed in areas of intensive grazing, where the depolymerization of HIV clay minerals was attributed to the pH increase and factors associated with the concentrated urine and manure deposition (Officer et al, 2006).…”

Section: Introductionmentioning

confidence: 98%

“…These alterations in the mineralogy of iron oxides were attributed to changes in the pedo-environmental conditions resulting from the implementation of NT, which normally leads to an increase in organic matter content (Ciotta et al, 2002;Costa et al, 2004;Dieckow et al, 2009), an increase in moisture and the residence time of water, in addition to a decrease in soil temperature (Salton & Mielniczuk, 1995;Costa et al, 2003). Due to the close relationship of these effects with soil and climate variables, such pedoenvironmental changes destabilize the system and a new dynamic equilibrium is established that can also gradually affect the stability of 2:1 clay minerals with interlayered Al hydroxyl (Karathanasis & Wells, 1989;Azevedo et al, 1996;Officer et al, 2006), frequently found in the clay fraction of soils in the subtropical regions of Brazil (Pötter & Kämpf, 1981;Curi et al, 1984;Ker & Resende, 1990;Kämpf et al, 1995;Almeida et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Aluminum hydroxy-interlayered minerals and chemical properties of a subtropical Brazilian Oxisol under no-tillage and conventional tillage

Inda

Torrent

Barrón

et al. 2010

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

No tillage systems significantly influence the soil system, but knowledge about the effects on the mineralogy of tropical and subtropical soils is limited. This study evaluated the long-term effects (26 years) of no-tillage (NT) on aluminum hydroxy-interlayered minerals of a subtropical Oxisol in Southern Brazil (Guarapuava, PR), compared to the same soil under conventional tillage (CT). The clay fraction (< 2 μm) in soil samples of the surface horizons of a field experiment under both management systems was analyzed by X-ray diffraction (XRD) to identify and characterize Al hydroxy-interlayered minerals before and after treatment with sodium citrate to remove intra-layer material. Soil liquid (solution) and solid phases were also characterized. The contents of total organic C, exchangeable cations, P, and the values of extractable acidity and cation exchange capacity as well as electrical conductivity and levels of dissolved organic C, basic cations, aluminum, Si, and sulfur in the soil solution were higher in the NT soil. Under both soil management systems, more than 90 % of the total soluble Al was complexed with organic compounds, with similar Al activity. No significant changes were detected by 2:1 clay mineral XRD analyses in terms of extension or intercalation of Al-hydroxy-polymers in the no-tilled in comparison to the conventionally tilled soil. In both soil management systems, Al and Si activities in the soil solution indicated thermodynamic stability of 2:1 clay minerals with partially occupied by hydroxy-Al, suggesting deceleration in the intercalation process and a tendency of transforming clay minerals from extensive into partial intercalation.Index terms: HIS, HIV, organic carbon, soil management systems, mineral stability.(

show abstract

A Multi‐Element Mineral Conditioner: A Supplement of Essential Cations for Red Soil and Crops Growth

Chen

Shi

2016

CLEAN Soil Air Water

View full text Add to dashboard Cite

A multi-element mineral conditioner (MMC) is a kind of slightly alkaline soil conditioner prepared by calcining a mixture of calcium or magnesium-based desulfurized flue gas residue, potassium feldspar, gypsum, dolomite, and limestone powder, rich in available K, Ca, Mg, Si, and other micronutrients. To evaluate the effect of MMC on the concentration of essential cations in red soil and in the crops grown thereon, a 4-month field experiment was conducted. By applying the MMC, the acidity of the red soil caused by weathering and chronic acid rain in Southern China can be neutralized, and the essential cations severely lacking in red soil and crops can be adequately replenished. Due to the addition of essential cations to red soil, the 1:1 type clay mineral gradually transformed into 2:1 type clay mineral. The grain yield was increased and the quality of rice was improved. The concentrations of Pb, Cd, Hg, and As in rice grains grown in the treated soil was significantly decreased. These results demonstrate that use of MMC can ameliorate soil and improve its fertility, reduce the reliance of crops on chemical fertilizers, raise the rice yield and improve the quality of red soil.

show abstract

Variability of clay mineralogy in two New Zealand steep-land topsoils under pasture

Cited by 26 publications

References 34 publications

Chemical and mineralogical changes in a Brazilian Rhodic Paleudult under different land use and managements

Chemical and mineralogical changes in a Brazilian Rhodic Paleudult under different land use and managements

Aluminum hydroxy-interlayered minerals and chemical properties of a subtropical Brazilian Oxisol under no-tillage and conventional tillage

A Multi‐Element Mineral Conditioner: A Supplement of Essential Cations for Red Soil and Crops Growth

Contact Info

Product

Resources

About