Great Plains YP625PD Material Rate - Manual (Page 35)

09/29/2011 Table of Contents 401-754B
Great Plains Manufacturing, Inc. Table of Contents Fertilizer Rate 33
Fertilizer Rate
The YP625PD/TD & YP925TD planters include a dry
fertilizer system.
Possible Agricultural Chemical Hazard:
Wear recommended protective equipment and clothing when
handling, measuring, loading, applying, and unloading dry
fertilizer. Inhalation of dusts or mists, and direct skin and eye
contact with material, dusts or contaminated fluids, can cause
irritation, illness or other serious medical problems.
Equipment Damage Risk:
Avoid spills. Confine fertilizer to the hoppers. Load hoppers
shortly prior to application. Unload or apply left-over
material. Fertilizers are generally caustic, and can be
extremely destructive to unpainted metal surfaces (other than
stainless steel). Wash off any spilled material after application.
Dry Fertilizer Rate
Refer to Figure 15
Dry fertilizer rate is set by a pair of Transmission
sprockets at the left side of the implement.
Note: Dry fertilizer rate is independent of seed rate.
Although the dry fertilizer drive relies on the same
ground drive and main shaft as the seed metering
system, changes in seed rate do not affect those
drive components.
Application Rate Risk:
Make field checks to assure you are applying fertilizer at the
desired rate. Fertilizer application rates vary with speed,
material density, material granularity and atmospheric
conditions. The charts provide only approximate rates for a
specific density. See “Dry Fertilizer Rate Check” on page 35.
Setting Dry Fertilizer Rate
1. Determine your desired (target) rate in kilograms per
hectare.
2. Obtain the density of your material in kilograms per
liter (kg/l).
3. If the material density varies more than a few percent
from 1.04 kg/l, do not use your target rate when
consulting the rate charts. First apply a density
correction factor (instructions on page 35).
Null4:
Figure 15
Fertilizer Transmission
31871
DRIVING
DRIVEN
Note: Great Plains recommends checking with your
local Agronomist as soil conditions vary.
Note: If the density is not provided on the material
container, weigh an empty liter measuring jug. Fill
it with a sample of your material. Weigh again.
Subtract the weight of the empty jug. Divide by the
container capacity in liters.