A phosphorus sorption index and its use to estimate leaching of dissolved phosphorus from agricultural soils in Ontario

Geoderma ◽  
2016 ◽  
Vol 274 ◽  
pp. 79-87 ◽  
Author(s):  
Y.T. Wang ◽  
T.Q. Zhang ◽  
I.P. O'Halloran ◽  
C.S. Tan ◽  
Q.C. Hu
Keyword(s):  
Agricultural Soils ◽  
Phosphorus Sorption ◽  
Dissolved Phosphorus ◽  
Sorption Index ◽  
Phosphorus Sorption Index

The Use of Phosphorus Sorption Parameters in the Monitoring of Potential Emissions of this Component from the Arable Lands

2012 ◽  
Vol 63 (3) ◽  
pp. 24-30 ◽  
Author(s):  
Ewa Szara ◽  
Tomasz Sosulski
Keyword(s):  
Sorption Capacity ◽  
Agricultural Land ◽  
Agricultural Soils ◽  
Ammonium Oxalate ◽  
Degree Of Saturation ◽  
Phosphorus Leaching ◽  
Phosphorus Sorption ◽  
Soil Saturation ◽  
Sorption Parameters ◽  
Sorption Index

Abstract The study assesses the usefulness of different methods of determining the sorption properties of soils in relation to phosphorus in the agricultural soils from Central Poland in terms of the risk of environmental pollution posed by this component. As a reference parameter necessary to achieve the study.s objective, the sorption capacity of soils for phosphorus determined on the basis of the Langmuir model was used. The results of the tests were used to calculate the degrees of soil saturation with phosphorus: PE-R/Smax (Psat1); PE-R/PSI36 (Psat2), PM3/AlM3 + FeM3 (Psat3); Pox/Alox+Feox (Psat4); PE-R/AlM3+FeM3 (Psat5); PE-R/ Alox+Feox (Psat6). The usefulness of these indicators for assessing the risk of phosphorus emissions from agricultural land was determined on the basis of the coefficients of their correlation with the amount of active phosphorus in the soil. The study proved the usefulness of the Mehlich-3 and acid ammonium oxalate solutions for assessing the sorption capacity and the degree of saturation with phosphorus of typical Polish agricultural soils. For identifying the risk of phosphorus leaching from the soils, the parameter that specifies the extent of soil saturation with phosphorus as determined by the Egner-Riehm test and the sorption index (PSI) obtained by equilibrating the soils with a solution containing 36 mg P dm.3 at the soil-to-solution ratio of 1:10 (Psat2) were also found useful.

Phosphorus availability in soils subjected to short periods of flooding and drying

Soil Research ◽  
1982 ◽  
Vol 20 (2) ◽  
pp. 131 ◽  
Author(s):  
IR Willett
Keyword(s):  
Organic Carbon ◽  
Surface Reaction ◽  
Soil Phosphorus ◽  
Phosphorus Sorption ◽  
Hydrous Oxide ◽  
Flooding And Drying ◽  
Sorption Index ◽  
Phosphorus Sorption Index ◽  
Extractable Iron ◽  
Flooding Period

The effects of flooding and drying on the availability of original soil phosphorus, phosphorus added before flooding and phosphorus added after drying were studied. In four soils high in organic carbon and reducible iron, 2 or more days of flooding (at 25�C) caused the immobilization of phosphorus added after drying. Four or more days of flooding caused immobilization of original soil phosphorus. Phosphorus applied before the flooding period was immobilized to a greater degree than phosphorus applied after drying in a soil rich in organic carbon and reducible iron. In a soil low in these, phosphorus applied before flooding was immobilized, but phosphorus applied after drying was not. Changes in soil extractable iron and phosphorus, and in phosphorus sorption index, caused by flooding and drying, were consistent with immobilization of phosphorus added after flooding by a surface reaction, and the immobilization of phosphorus present during flooding by occlusion of phosphorus with iron(III) hydrous oxide, or by formation of iron(III) phosphate.

Phosphorus sorption index in humid tropical soils

2016 ◽  
Vol 156 ◽  
pp. 110-118 ◽  
Author(s):  
Murilo de Campos ◽  
João Arthur Antonangelo ◽  
Luís Reynaldo Ferracciú Alleoni
Keyword(s):  
Tropical Soils ◽  
Phosphorus Sorption ◽  
Sorption Index ◽  
Phosphorus Sorption Index ◽  
Humid Tropical Soils

Study on Novel Structures Phosphorus Sorption Capacity of Surficial Sediment in Dongping Lake and Risk Assessment of Potential Phosphorus Release

2012 ◽  
Vol 518-523 ◽  
pp. 1089-1092
Author(s):  
Jie Dong ◽  
You Hua Xing ◽  
Xiao Min Gong
Keyword(s):  
Sorption Capacity ◽  
Risk Index ◽  
Ammonium Oxalate ◽  
Phosphorus Release ◽  
Phosphorus Sorption ◽  
The North ◽  
Dongping Lake ◽  
Phosphorus Sorption Capacity ◽  
Sorption Index ◽  
Phosphorus Sorption Index

Phosphorus sorption capacity of the surficial sediments are estimated by the phosphorus sorption index (PSI) and the degree of phosphorus saturation (DPS) of the sediments in the Dongping Lake, China. In addition, the risk of potential phosphorus release was also analyzed. The results showed that PSI gradually increased from the middle and the east of the lake to the north and the south, which was fan-shaped. However, the variation tendency of DPS was contray to this of PSI. PSI was very significantly and positively correlated to iron (FeOX) extracted from sediment by ammonium oxalate. DPS was significantly and positively correlated to phosphorus (POX) extracted from sediment by ammonium oxalate. Additionally, the analysis of the phosphorus release risk index (RRI) indicated that the Dongping Lake might be in high potential eutrophication risk due to the release of phosphorus from the surfacial sediments.

scholarly journals Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 373
Author(s):  
Jonathan Suazo-Hernández ◽  
Erwin Klumpp ◽  
Nicolás Arancibia-Miranda ◽  
Patricia Poblete-Grant ◽  
Alejandra Jara ◽  
...  
Keyword(s):  
Organic Matter ◽  
Crop Production ◽  
Agricultural Soils ◽  
Ph Value ◽  
Consumer Products ◽  
Soil Samples ◽  
Engineered Nanoparticles ◽  
P Availability ◽  
Agricultural Crop ◽  
Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

Phosphorus sorption - desorption by purple soils of China in relation to their properties

Soil Research ◽  
2007 ◽  
Vol 45 (3) ◽  
pp. 182 ◽  
Author(s):  
M. Li ◽  
Y. L. Hou ◽  
B. Zhu
Keyword(s):  
Binding Energy ◽  
Single Point ◽  
Phosphorus Sorption ◽  
Soil P ◽  
P Sorption ◽  
Desorption Curve ◽  
Degree Of P Saturation ◽  
Soil Test P ◽  
Sorption Index ◽  
Water Eutrophication

The understanding of phosphorus (P) sorption and desorption by soil is important for better managing soil P source and relieving water eutrophication. In this study, sorption–desorption behaviour of P was investigated in purple soils, collected from 3 kinds of purple parent materials with different kinds of land cover, in the upper reaches of Yangtze River, China, using a batch equilibrium technique. Results showed that most of the farmed purple soils had P sorption capacity (PSC) values ranging from 476 to 685 mg P/kg, while higher PSC values were observed in the soils from forestland and paddy field. A single-point P sorption index (PSI) was found to be significantly correlated with PSC (R2 = 0.94, P < 0.001), suggesting its use in estimating PSC across different types of purple soils. The PSC of purple soils was positively and strongly related to the contents of amorphous Fe and Al oxides (r = 0.73, P < 0.001), clay (r = 0.55, P < 0.01), and organic matter (r = 0.50, P < 0.05). Furthermore, the constant relating to binding strength was positively correlated with the content of amorphous Fe and Al oxides (r = 0.66, P < 0.01), but negatively correlated with labile Ca (r = –0.43, P < 0.05) and soil pH (r = –0.53, P < 0.01). Some acidic purple soils with high binding energy featured a power desorption curve, suggesting that P release risk can be accelerated once the P sorbed exceeds a certain threshold. Other soils with low binding energy demonstrated a linear desorption curve. The P desorption percentage was significantly correlated with soil test P (r = 0.78, P < 0.01) and the degree of P saturation (r = 0.82, P < 0.01), but negatively correlated with PSC (r = –0.66, P < 0.01).

Soil Tests as Risk Indicators for Leaching of Dissolved Phosphorus from Agricultural Soils in Ontario

2012 ◽  
Vol 76 (1) ◽  
pp. 220-229 ◽  
Author(s):  
Y. T. Wang ◽  
T. Q. Zhang ◽  
I. P. O'Halloran ◽  
C. S. Tan ◽  
Q. C. Hu ◽  
...  
Keyword(s):  
Agricultural Soils ◽  
Risk Indicators ◽  
Soil Tests ◽  
Dissolved Phosphorus
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