Seed Rate Calibration - Landoll 5530 Operator's Manual

SEED RATE =
(NO. OF ROTATIONS) X (ROW SPACING)
# SEEDS per ROW =
m153836

4-16 SEED RATE CALIBRATION

4-16.1 The seed rate charts are in pounds per
acre and based on an average seed size
(See Figure 4-21). Several factors can influ-
ence seeding rates: seed varieties, seed
size, seed weight, seed treatment, seed
cleanliness, tire pressure, tire slippage, and
tire size.
IMPORTANT
THE OPERATOR MUST VERIFY ACTUAL SEED
OUTPUT BEFORE PLANTING TO INSURE THE
DESIRED SEEDING RATE.
4-16.2 If the specific seed is not listed on the
seed chart, pick a similar seed size and
check the seed calibration for the desired
rate.
4-16.3 To check the seeding rate:
a. Adjust the seeding rate handle and drive
type to the desired rate from the seed chart
(See Figure 4-21).
b. Select three seed meters next to each other,
and disconnect the rubber seed tubes to be
able to catch the seed.
4-22
(AVG SEED WEIGHT) X 65896
(SEED RATE) X (SEEDS/LB) x (NO. OF ROTATIONS) x (ROW SPACING)
Figure 4-21 Seed Rate Chart and Calibration Formulas
65896
c. Fill the box with a sufficient amount of seed
over the three meters.
d. Lower the openers to planting position to
engage the seed clutch.
e. Place a jack under the appropriate drive
wheel and raise off the ground so the drive
wheel may be rotated by hand.
f. Collect the seed from the three seed meters
as you rotate the drive wheel by hand. Count
the total number of rotations. Twenty rotations
would be a good starting point; more rotations
will produce more accurate results.
g. Weigh (in pounds) the total amount of seed
and divide by 3 for an average amount of
seed per meter. See Figure 4-21for seed rate
formula.
4-16.4 Adjust the seed meter rate handle to
compensate for any variation, and repeat the
seed calibration until the desired seeding
rate is achieved.
4-16.5 See Figure 4-21 for number of seeds
per row formula.