The Rural Voice, 1986-04, Page 57nn7xmuniimwTi 1miinun'i
T iS EQUIPMENT MUST E��
No reasonable
offer recused!
MF 2705 w/cab, 1200 hrs
IH 1086 w/cab.........
IH 1206 w/cab
IH 1468 w/cab & duals
AC 7050 w/cab
New McKee 460 w/Ldr . .
MF 1105 w/cab
Case 1690
w/cab, 700 hrs .. only
Case 1490
w/cab & Ldr. 1000 hrs . $17,500
MF 255 w/cab,
only 1000 hrs
Cockshutt 1750 gas ... .
SPECIAL
New IH cultivators
Two 181/2 ft .... ea. only $ 3,600
One hyd. wing 211/2 ft$ 4,600
Used 25 ft.
Triple K cultivator $ 2,500
CULTIVATORS, PLOWS, DISCS,
GRAIN DRILLS, ETC. ETC.
$16,000
$12,500
$ 4,700
$ 7,500
$ 9,500
$ 9,500
$ 9,000
$15,200
$ 8,000
$ 4,000
FARM EQUIPMENT
Consignment Sale
Saturday,
April 19, 1986
Consignments
now being taken
"You name it we have it!"
BRINDLEY
AUCTION
1/4 mile east of Dungannon
Home
Shop
529.7970 529.7625
PG. 16 SPECIAL EQUIPMENT SPECIAL,
Crop monitoring
from the air
A Twin Otter aircraft fitted with
sophisticated monitoring equip-
ment is helping Agriculture
Canada researchers show that
large-scale crop analysis from an
aircraft can be as accurate as
ground-based measurements.
Begun in 1980, the airborne
monitoring system is part of the
crop environment assessment pro-
gram of Agriculture Canada's
Land Resource Research Institute.
Raymond Desjardins, a
microrneteorologist with the in-
stitute, is heading the airborne
research.
Because all growing vegetation
absorbs carbon dioxide (CO2) and
gives off oxygen, the amount of
CO2 absorbed by plants is a good
indicator of crop growth.
"Agrometeorologists have been
monitoring CO2 uptake from
ground-based systems for several
years," Dr. Desjardins says.
"The airborne system adds a
new dimension by making it possi-
ble to measure CO2 exchanges over
larger areas."
A specialized monitoring device,
called an open path gas analyzer,
was developed especially for the
program by Agriculture Canada's
Engineering and Statistical
Research Institute.
This device measures the con-
centration of CO2 in each air parcel
above a crop. The greater the dif-
ference in CO2 concentration bet-
ween the parcels of air, the higher
the rate of crop growth.
Dr. Desjardins and other resear-
chers are in the process of testing
the airborne system for accuracy
by comparing their data with those
collected from ground-based
systems.
"By understanding how crops
interact with their environments,
we will be able to assess more ac-
curately which agricultural techni-
ques are more energy and water ef-
ficient, and which crops are best
suited to local climate and land
resources," Dr. Desjardins says.
This may be done by relating
CO2 uptake and other climatic fac-
tors to crop growth. If data in-
dicate that the crop is doing well, it
may be possible to determine what
management techniques would be
most beneficial. ❑
APRIL, 1986
The
Professional
Mid -Size Saw for
Heavy -Duty
Cutting
Rugged enough for field, woodlot
and farmyard, built to cut through
big jobs or small chores. Use it for
limbing operations, stump
removal, or firewood cutting.
Anywhere you need a tough.
powerful saw.
A unique saw that features high
power, low weight and the latest
in human engineering.
DOHERTY'S
SMALL ENGINE
CENTRE
I block south of the stoplights
DURHAM 369-2813
11:1
THE WORLD'S LARGEST SELLING CHAIN SAW
TRACTORS
3 3140 John Deere 2&4 WD
1 3130 John Deere w/cab &
Idr.
1 730 John Deere, Real Work
Horse
1 8011 Zetor w/cab
1 624 IH, Real good
1 5000 Ford 67 hp
1 990 David Brown w/Idr.
1 6600 Ford w/cab, low hrs.
USED SPRING
EQUIPMENT
White 10' Wheel disc
John Deere 7000 Planter
Several manure spreaders,
single & tandem
Terms:
Interest free until Oct. 1, 1986
Special terms until Oct. 1, 1987
IVAN J.H. CARMICHAEL
LTD.
John Deere Sales & Service
CHATSWORTH
Hwy. 6 1 mi. S.
519-794-2480
JOHN DEEPI