Soil order and management practices control soil phosphorus fractions in managed wetland ecosystems

Ruark, Matthew D.; Hill, James E.

doi:10.1007/s10705-010-9411-3

Cited by 36 publications

(21 citation statements)

References 22 publications

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“…Table 7 breaks up the data into geochemical P, which is believed to represent inorganic P sorbed by soil, and biological P, which is believed to be organic P present in soil and derived from plants and soil organisms. Most P was geochemical P, supporting results of field studies with waste materials obtained by Uusitalo et al (2007), Hao et al (2008) and Linquist et al (2011). In contrast, for soil treated with DL180, higher geochemical and biological P levels were found.…”

Section: Resultssupporting

confidence: 78%

Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system

Guardini

Comin

Schmitt

et al. 2012

Nutr Cycl Agroecosyst

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In this paper we explore the accumulation of different phosphorus (P) fractions in soil submitted to successive applications of pig slurry (PS) and deep pig litter (DL). After 88 months of no-till crop cycles, soil samples were collected in the following treatments: control (C), PS applications equivalent to 90 and 180 kg N ha -1 (PS90 and PS180), and DL applications equivalent to 90 and 180 kg N ha -1 (DL90 and DL180). The cumulative application of P of the C, PS90, PS180, DL90 and DL180 treatment was 0, 303, 606, 825 and 1650 kg P ha -1 , respectively. The soil samples were then submitted to P chemical fractionation. Successive applications of 303 and 606 kg P ha -1 in PS form and 825 and 1.650 kg P ha -1 in DL form increased P levels down to 20 cm depth, especially in the labile inorganic fraction extracted by anion exchange resin and 0.5 M NaHCO 3 and to a lesser extent extracted by 0.1 M NaOH. Successive additions of PS180 and DL180 increased the levels of organic P extracted by 0.5 M NaHCO 3 , 0.1 M NaOH and 0.5 M NaOH, and successive applications of PS and DL caused P accumulation in the soil profile, especially in labile fractions. This increased the availability to plants, but also increases the potential for environmental contamination.

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Section: Resultssupporting

confidence: 78%

Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system

Guardini

Comin

Schmitt

et al. 2012

Nutr Cycl Agroecosyst

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“…In soils growing annual crops under long-term, successive phosphate applications, organic and inorganic P fractions are accumulated in the soil at different degrees of binding energy, although the accumulation of the inorganic fractions is generally most pronounced (Negassa et al, 2009;Linquist et al, 2011;Tokura et al, 2011). Few studies on P accumulation in vineyard soils after long-term nutrient application have been published in the international literature and none in Brazil.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus fractions in sandy soils of vineyards in southern Brazil

Schmitt

Comin

Gatiboni

et al. 2013

Rev. Bras. Ciênc. Solo

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SUMMARYPhosphorus (P) applications to vineyards can cause P accumulation in the soil and maximize pollution risks. This study was carried out to quantify the accumulation of P fractions in sandy soils of vineyards in southern Brazil. Soil samples (layers 0-5, 6-10 and 11-20 cm) were collected from a native grassland area and two vineyards, after 14 years (vineyard 1) and 30 years (vineyard 2) of cultivation, in Santana do Livramento, southern Brazil, and subjected to chemical fractionation of P. Phosphorus application, especially to the 30-year-old vineyard 2, increased the inorganic P content down to a depth of 20 cm, mainly in the labile fractions extracted by anion-exchange resin and NaHCO 3 , in the moderately labile fraction extracted by 0.1 and 0.5 mol L -1 NaOH, and in the non-labile fraction extracted by 1 mol L -1 HCl, indicating the possibility of water eutrophication. Phosphorus application and grapevine cultivation time increased the P content

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“…At Dong Lake the concentration was 0.36 mg/L.AP is an active form of P. The term mainly refers to oxides in the sediment, hydroxides, and P adsorbed on the surface sites of clay minerals, all of which have a large impact on the nutritional status of a body of water. AP is also associated with the sedimentary environment [11]. At both sites D and X2 there were large amounts of aquatic plants, and the TP content was low.…”

Section: Apatite Phosphorus (Ap)mentioning

confidence: 99%

Phosphorus Speciation and Distribution in Sediments and the Relationship with Total Phosphorus in the Overlying Water

Lu¹,

Wang²,

Malik³

et al. 2016

JRST

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ABSTRACT:To study phosphorus (P) speciation and distribution in lake water and sediments, and the relationship with total P (TP) in the overlying water, the concentration of different forms of P in lake water and sediments was determined. Samples were collected from Xuanwu and Dong Lakes. The results indicated that the concentration of P in sediments was largely influenced by human processes, vegetation, hydraulic conditions, and geographic settings. The inorganic P (iP) content was much higher than the organic P (oP) content, while naoh-extractable P (naoh-P) was the main inorganic P fraction, accounting for 40-50% of iP. The hcl-extractable P (hcl-P: calcium (ca) bound P) content was low but stable, because ca bound P was not easily adsorbed. The TP content of lake water and sediments were positively correlated, as was naoh-P and apatite P (aP), while there was no obvious correlation between the TP content of lake water and oP and hcl-P. This suggests that labile P accounted for most of the exchange capacity of P at the water-sediment interface. The results indicated that the content of P in lake-bottom sediments was closely related to the concentration in lake water, providing a theoretical basis for the treatment of eutrophic water bodies with regard to the internal P loading.

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Soil order and management practices control soil phosphorus fractions in managed wetland ecosystems

Cited by 36 publications

References 22 publications

Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system

Accumulation of phosphorus fractions in typic Hapludalf soil after long-term application of pig slurry and deep pig litter in a no-tillage system

Phosphorus fractions in sandy soils of vineyards in southern Brazil

Phosphorus Speciation and Distribution in Sediments and the Relationship with Total Phosphorus in the Overlying Water

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