Vol. 51—1997 - NorthEastern Weed Science Society

Waggoner December 24, 1994
139
1200
•
1000
IR8 &
....... 800
h
Weeds
r.o
t
S- 600
a3 /
~
IRS or &
:z 400
/
Weeds
C4-63
/
200
- .,.
0
0 2 4 6 8 10 12
ha for 5 t
Fig 7. The hec ares and fertilizer to produce 5 tons of two
varieties of r'ce, with and without weeds. (Moody 1981, table
19) •
Integrating eJqJeDS
The boss of Wi
expense per pr
that hectares
oranges. He wo
Integration me
entity, often
No market sets
currency denom
integration re
values, say, 1
herbicide and
expense E of 5
(kg fertilizer
general, I wri
herbicide and
But herbicide
hectares to gr
applies fewer
concentrating
gets Inc. would compliment us for figuring
duct rather than factory floor but complain
nd kg, varieties and weeds were apples and
ld urge integration into a common currency.
ns forming into a more complete or harmonious
y adding parts. .
the exchange rates for an environmental
nated in 'enviros'. Nevertheless, holistic
ires an analyst place on each factor relative
o enviros per hectare, 20 enviros per kg
enviro per kg fertilizer. Then integrated
tons of food equals (hectares times 100) plus
times 200) plus (kg herbicide times 1). In
e exchange rates ea' eh and en for land,
ertilizer.
nd fertilizer rates lift yields and shrink
w 5 tons. And for a given kg/ha, a farmer
g as hectares shrink. For example,
n herbicide, I write
Expense E = ea * ha field + eh * kg herbicide, which becomes
E e a * ha fi ld + eh * ha field * kg/ha herbicide
the