From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: Reprints available
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
Date: Wed, 16 Sep 1992 00:00:44 GMT


"HERB Decision Model for Postemergence Weed Control in Soybean"
G.G. Wilkerson, S.A. Modena, and H.D. Coble
Agron. J. 83:413-417 (1991)

"ABSTRACT

"To efficiently use postemergence herbicides, decision makers must
determine when weed populations exceed economic treatment thresholds.
An interactive microcomputer program named HERB has been developed to 
help evaluate potential crop damage from multi-species weed complexes
in soybean [Glycine max (L.) Merr.] and determine the appropriate
course of action.  Seventy-six weeds species are rated on a scale of
zero to 10 according to their competitiveness with soybean.  Potential
yield loss is estimated from these rankings, the number of weeds of each
species present in the field, and expected weed-free yield.  The
recommendation whether to apply herbicide and, if so, which one, is
based on herbicide cost and efficacies under different conditions and
expected soybean selling price.  Alternative choices are ranked
according to expected net return.  HERB is intended to provide the
latest research information in an organized and easily usable form.
The approach should be applicable to other crops and pests."

HERB(r) is a registered trade mark of North Carolina State University.

The article covers: Model Description, Benefits, Design Considerations,
and Software Specifications.

The main bullets under Design Considerations are: 

     The software does not attempt to relieve the decision maker of
        the final decision.

     The software performs a necessary and important task which is tedious,
        complicated, or time consumimg.; 

     The software represents an expert on immediate call for seasonal
        decisions.

     Decision support software for personal computers provides a medium
        for the transfer of the latest research results directly to
	the end users who might benefit most.

     The use of HERB supports and encourages appropraite levels of
       herbicide application.

     The decision maker can make an independent assessment in private.

     HERB may be a generic framework for extension or other crops
        and pests.

Anyone who might be interested in obtaining a reprint of this article
should send my their mailing address.

HERB is a software application based on *applied* plant biology.
The bullets indicate that applied plant biology impinges on a
number of areas: plant ecology, economics, decision management,
social milieu, environmental protection, paradigm development, etc.

Steve
---
+------------------------------------------------------------------+
|     In person:  Steve Modena     AB4EL                           |
|     On phone:   (919) 515-5328                                   |
|     At e-mail:  nmodena@unity.ncsu.edu                           | 
|                 samodena@csemail.cropsci.ncsu.edu                |
|                 [ either email address is read each day ]        |
|     By snail:   Crop Sci Dept, Box 7620, NCSU, Raleigh, NC 27695 |
+------------------------------------------------------------------+
         Lighten UP!  It's just a computer doing that to you.
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
         
Newsgroups: bionet.plants