c     ------------------------------------------------------------------
c     file 'c1gen.inc'

c     This common block contains the state variables relating to
c     the general purpose crop information.

c     Parameter include files:  p1werm.inc

c     + + + VARIABLE DECLARATIONS + + +

      integer          ac0rg(mnsub)
      real             acdpop(mnsub)
      real             ac0til(mnsub)
      integer          acrsfg(mnsub)
      real             acxrow(mnsub)
      integer          acrofg(mnsub)
      integer          acthud(mnsub)
      real             acytgt(mnsub)
      character*80     acynmu(mnsub)
      integer          acyprt(mnsub)
      real             acywct(mnsub)
      real             acycon(mnsub)

      common / c1gen /
     i                 ac0rg,
     r                 acdpop, ac0til,
     i                 acrsfg,
     r                 acxrow,
     i                 acrofg,
     i                 acthud,
     r                 acytgt,
     c                 acynmu,
     i                 acyprt,
     r                 acywct, acycon

c     + + + VARIABLE DEFINITIONS + + +

c     ac0rg  - Crop seeding location in relation to ridge

c            = 0 if plant in furrow
c            = 1 if plant on ridge

c            - This variable contains the crop seeding location
c              in relation to the furrow for each subregion.


c     acdpop - Crop seeding density (plants/m^2)

c              range values      min        max
c              ------------   ---------  ---------
c              fixed          fmin       fmax
c              typical        tmin       tmax
c              ------------   ---------  ---------

c            - This variable contains the crop seeding density
c              for each of the subregions.

c     ac0til - tillering factor to go from seed pop to stem count

c     acxrow - Crop row spacing (m)

c              range values      min        max
c              ------------   ---------  ---------
c              fixed          fmin       fmax
c              typical        tmin       tmax
c              ------------   ---------  ---------

c            - This variable contains the crop row spacing
c              for each of the subregions.

c     acrsfg - row spacing flag
c         0      o Broadcast Planting
c         1      o Use Specified Row Spacing
c         2      o Use Existing Ridge Spacing
c     acrofg - crop row orientation flag
c         0      o Use Existing Ridge Direction
c         1      o Use Operation Direction
c     acthud - flag to indicate whether heat units or days to maturity 
c              is the input. (the other can then be calculated for average
c              conditions) Question: Is the harvest date set by days to
c              maturity?
c     acytgt - target yield (in units shown below)
c     acynmu - string for name of units in which yield of interest will be
c              reported
c     acyprt - code to indicate to crop which plant part is the yield of
c              interest to be reported
c     acywct - water content at which yield is to be reported
c     acycon - conversion factor from Kg/m^2 to units named in acynmu (all
c              dry weight)

c     ------------------------------------------------------------------