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Evaluating vegetated buffer zones for P retention in cereal and grass production

Uusi-Kämppä, Jaana (2008) Evaluating vegetated buffer zones for P retention in cereal and grass production. Paper at: Phosphorus management in Nordic-Baltic agriculture - reconciling productivity and environmental protection : NJF seminar 401, Uppsala, Sweden, 22-23.9.2008.

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Summary

Buffer zones were effective in decreasing losses of eroded soil particles, total P and particulate P in surface runoff from fields ploughed in autumn. The retention of DRP was low, the DRP loads to surface runoff might increase on BZs in winter and early spring. The grass should be cut and the swathe removed on the BZs. Innovatons, with them DRP can be retained on BZs especially in winter and spring >StoP.
On pasture and in direct drilling, the mean annual DRP load was slightly smaller on the VBZ with native scrubs and herbs compared with NBZ (p=0.05, p=0.07, respectively). There was a significant treatment x season interaction on surface runoff, TP, and DRP and almost significant on total solids (erosion), and PP.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:buffer zones, phosphorus
Subjects: Environmental aspects > Air and water emissions
Research affiliation: Finland > MTT Agrifood Research
Related Links:http://www.njf.nu
Deposited By: Koistinen, Riitta
ID Code:16038
Deposited On:26 Aug 2009 12:01
Last Modified:12 Apr 2010 07:39
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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