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Gypsum-based management practices to prevent phosphorus transportation

Pietola, Liisa (2008) Gypsum-based management practices to prevent phosphorus transportation. In: NJF Report, Nordic Association of Agricultural Scientists, 4 (4), pp. 78-82.

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Document available online at: http://www.njf.nu/filebank/files/20081124$090257$fil$zOVHaH474860Yr2l1u6u.pdf


Phosphogypsum from Siilinjärvi plant were tested in soil incubation-leaching-studies(I), and in liquid pig manure treatment (II) in farm pit.
In soil columns, gypsum additions significantly reduced erodibility and ortho-P concentrations in the leaching water.
In the pig manure test, the gypsum-based precipitate fractionated phosphorus to P-rich sediment and to almost P-free upper part. Upper low-P fraction represented 2/3 of the total manure volume.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:gypsum, phosphorus, losses, transportation
Subjects: Environmental aspects > Air and water emissions
Research affiliation: Finland
Related Links:http://www.njf.nu
Deposited By: Koistinen, Riitta
ID Code:16046
Deposited On:28 Aug 2009 12:14
Last Modified:12 Apr 2010 07:39
Document Language:English
Refereed:Not peer-reviewed

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