Measuring Agronomic and Environmental Soil Phosphorus Saturation and Predicting Phosphorus Leaching with Mehlich 3

2002 ◽  
Vol 66 (6) ◽  
pp. 2033-2039 ◽  
Author(s):  
R. O. Maguire ◽  
J. T. Sims
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Leaching ◽  
Phosphorus Saturation

Phosphorus Leaching in Relation to Soil Type and Soil Phosphorus Content

2004 ◽  
Vol 33 (2) ◽  
pp. 678 ◽  
Author(s):  
Faruk Djodjic ◽  
Katarina Börling ◽  
Lars Bergström
Keyword(s):  
Soil Type ◽  
Phosphorus Content ◽  
Soil Phosphorus ◽  
Phosphorus Leaching

Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

1999 ◽  
Vol 79 (4) ◽  
pp. 615-625 ◽  
Author(s):  
Suzanne Beauchemin ◽  
R. R. Simard
Keyword(s):  
Environmental Fate ◽  
Saturation Index ◽  
Soil Phosphorus ◽  
Ammonium Oxalate ◽  
Calcareous Soils ◽  
Environmental Indicators ◽  
Saturation Degree ◽  
Soil P ◽  
Phosphorus Saturation ◽  
Soil Groups

Many agricultural fields contain excessive labile soil P in regard to crop needs. Its environmental fate must be assessed. The concept of P saturation degree is meaningful as it describes the portion of the soil binding sites already covered with P, and indicates the potential desorbability of soil P. The first objective of this study was to review different indices that have been proposed to estimate the degree of soil P saturation and the relationships between soil P saturation degree and P solubility. The second objective is to discuss their suitability as environmental indicators for P management in the province of Québec, Canada. In the Netherlands, the P saturation index is defined as the ratio of P to Al + Fe contents extracted by ammonium oxalate [Pox/( Alox + Feox ) or ( Pox/0.5( Alox + Feox )]. This approach has been mainly used with non-calcareous soils. In Québec, the ratio of Mehlich-III extractable P to Al (M3P/AlM3) is proposed as an alternative, which relies on routine laboratory test. However, the suitability of the M3P/AlM3 ratio has yet to be determined for some specific soil groups (e.g. gleyed soils, soils with Alox content >6 g kg−1) and for subsoil horizons. Regardless of the chosen index, it is suggested that the best way to manage the risk of water contamination by P in Québec (namely, defining critical levels of soil P saturation) may be to form homogeneous soil groups to account for their distinctive behaviour and characteristics. Key words: Phosphorus, saturation, management

Phosphorus Leaching in Relation to Soil Type and Soil Phosphorus Content

2004 ◽  
Vol 33 (2) ◽  
pp. 678-684 ◽  
Author(s):  
Faruk Djodjic ◽  
Katarina Börling ◽  
Lars Bergström
Keyword(s):  
Soil Type ◽  
Phosphorus Content ◽  
Soil Phosphorus ◽  
Phosphorus Leaching

scholarly journals Influence of soil phosphorus and manure on phosphorus leaching in Swedish topsoils

2013 ◽  
Vol 96 (2-3) ◽  
pp. 133-147 ◽  
Author(s):  
Annika Svanbäck ◽  
Barbro Ulén ◽  
Ararso Etana ◽  
Lars Bergström ◽  
Peter J. A. Kleinman ◽  
...  
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Leaching

Impact of Fertilization and Soil Phosphorus Status on Phosphorus Leaching from Soil in Vegetable Greenhouse

2012 ◽  
Vol 610-613 ◽  
pp. 2968-2973 ◽  
Author(s):  
Ya Jie Zhao ◽  
Xin Chen ◽  
Yi Shi ◽  
Cai Yan Lu ◽  
Bin Huang ◽  
...  
Keyword(s):  
Soil Phosphorus ◽  
Fertilizer Application ◽  
Organic Manure ◽  
Chemical Fertilizer ◽  
Phosphorus Leaching ◽  
Greenhouse Condition ◽  
Greenhouse Soil ◽  
Leaching Loss ◽  
Phosphorus Status ◽  
The Impact

The vegetable utilization rate of phosphorus fertilizer in greenhouse condition was low in the season of fertilizer application, resulting in phosphorus accumulation in the top soil year after year. The risk of phosphorus loss through leaching increased under the circumstance of inappropriate watering management and fertilization. In this study, leaching experiments using columns packed with a greenhouse soil with different soil phosphorus status (low, medium and high levels) were carried out under greenhouse condition to investigate the impact of fertilizer application on phosphorus leaching from greenhouse soil. The fertilization treatments included no fertilizer [CK], organic manure and chemical fertilizer [M+NPK], organic manure [M], chemical fertilizer [NPK]. The vertical migration and leaching loss of soil phosphorus were measured. Results were as follows: (1) total phosphorus (TP) content increased with the extension of leaching time. In the low-level- and medium-level-phosphorus greenhouse soils, TP concentration in the effluent increased with the application of manure; (2) In the high-level-phosphorus greenhouse soil, phosphorus in the effluent from the treatment with the use of fertilizer was the highest TP, with accumulative leaching amount of 2.85 mg in 51 days. The leaching of phosphorus became small after 36 days of leaching experiment. Our study showed that application of manure and chemical fertilizer at proper rates according to soil phosphorus status is beneficial to reduce the leaching loss of phosphorus to the environment.

Long-term trends in phosphorus leaching and changes in soil phosphorus with phytomining

2015 ◽  
Vol 70 (2) ◽  
pp. 121-132 ◽  
Author(s):  
A. Svanback ◽  
B. Ulen ◽  
L. Bergstrom ◽  
P. J. A. Kleinman
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Leaching ◽  
Long Term Trends

Using Soil Phosphorus Profile Data to Assess Phosphorus Leaching Potential in Manured Soils

2003 ◽  
Vol 67 (1) ◽  
pp. 215-224 ◽  
Author(s):  
Peter J. A. Kleinman ◽  
Brian A. Needelman ◽  
Andrew N. Sharpley ◽  
Richard W. McDowell
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Leaching ◽  
Profile Data ◽  
Leaching Potential
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