Melkamu,
     If I correctly imagine your interest in intercropping, the answer is
"yes", CERES-Maize would be a good model. Your system is very likely a
strip intercrop, so the effects of in-season interspecific interactions
will be small relative to the main effects of weather on the crops. The
carryover effects of alfalfa on the maize crops that follow it can also be
large. You should be able to use CERES-Maize to analyze these dominant
effects, and then provide an estimate of the interspecific interactions as
a separate issue.

At 12:53 PM 12/5/01 -0500, you wrote:
>1.For Modelling of Alfalfa and Maize intercropping and rotation,is it
>recomandable to use CERES?
>2.Would you send me  copies  of  Genetic coefficients files of CERES -
>alfalfa and CERES non -silage maize?
>3.Any sugestions concerning Modelling of Alfalfa and non-silage Maize
>which are helpful  for analysis of my experimental data.
>
>Melkamu Jate, M.Sc.student: Hohenheim university, Germany

Sincerely,
Bob Caldwell, Cropping Systems Specialist,
   Dept. of Agronomy & Horticulture/SEREC/NEREC
   University of Nebraska - Lincoln
   306 Keim Hall, P.O. Box 830910, Lincoln, NE 68583-0910
[log in to unmask]    Phone: (402) 472-4792. FAX: (402) 472-7904.