Hallo Andy

Could you send me a copy too, please.

Albert Calitz
Agro-ecological Zoning Programme
Windhoek
Namibia

-----Original Message-----
From: DSSAT - Crop Models and Applications
[mailto:[log in to unmask]]On Behalf Of Andrew Challinor
Sent: Wednesday, May 08, 2002 10:36 AM
To: [log in to unmask]
Subject: Re: About Actual Trends In Yields


Further to the two comments already posted: a time trend does exist in the
all-India groundnut yield record, as well as for many of the individual
subdivisions and districts. The trend is not always linear or exponential,
of course, and this does pose problems for modelling. I have a paper
sumitted to JAM which has some more details; I can send you a copy if you
are interested.

Regards,

Andy


________________________________
Andrew Challinor,
CGAM,
Dept. of Meteorology,
University of Reading,
Reading RG66BB
U.K.

http://www.met.rdg.ac.uk/~ajc

Tel (44) (0)118 9875123 ext 4281
Fax (44) (0)118 9318316
--------------------------------

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