Dear Tim,
 
I can suggest a couple of papers,
 
Yoneyama T. et al. (1990) Variation of natural 15N abundance of crops and soils in Japan with special reference to the effect of soil conditions and fertiliser applications, Soil Sci. Plant Nutr. 36 (4) 667-675
 
Choi W et al. (2002) Natural 15N abundances of maize and soil amended with urea and composted pig manure, Plant and Soil 245, 223-232
 
All the best,
Alison Bateman.
 
----- Original Message -----
From: [log in to unmask] href="mailto:[log in to unmask]">Heaton, Timothy HE
To: [log in to unmask] href="mailto:[log in to unmask]">[log in to unmask]
Sent: Tuesday, June 14, 2005 3:09 PM
Subject: [ISOGEOCHEM] Manure effect on plant 15N

Can anyone point me to published information on the effect of animal/human manure of the NATURAL ABUNDANCE 15N/14N ratio of crop plants?

In particular, comparisons of 15N/14N of manured versus non-manured plants grown in otherwise identical conditions would be very useful.

Thanks.

Tim H.E. Heaton

NERC Isotope Geosciences Laboratory
British Geological Survey
Keyworth, Nottingham NG12 5GG, England
(www.bgs.ac.uk/nigl/index.htm)

Tel. +44(0)115 936 3401
Email: [log in to unmask]




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