Seed Hawk TOOLBAR 2015 - Manual (Page 43)

SEED HAWK ® 2015 TOOLBAR OPERATOR’S MANUAL 38
4.10.1 Loose Soil Conditions
If the soil is too loose before seeding, the final packed surface will be excessively
below the loose soil that is thrown to the sides. This increases the likelihood of
soil falling, blowing or washing back into the closed and packed furrow. The re-
sult is an altered seed depth. The solution to this is to ensure that the soil is not
too loose before seeding. It may be necessary to pack the soil before seeding.
The Seed Hawk drill will cover adjacent rows if:
• The soil is conventionally tilled leaving it loose.
• Straw and/or chaff is poorly spread, wet or in large clumps.
• Field travel speed is excessive. May affect above listed items.
4.10 Seed Hawk ® Packer Tire
The packer tire bulges slightly to provide uniform packing over the seed and
fertilizer furrows. This leaves the seed ¾ in. (19mm) below the curved path left
by the packer wheel. The seed is placed in an ideal environment: moisture will
be channeled into the path of the packer tire; fertilizer is placed in the optimum
position for seed growth; and the seed knives leave a dark strip, which warms
more quickly than the surrounding residue covered soil.
Packer Tire
Seed Knife
Fertilizer Knife
Final Packed Surface
Loose Soil and Straw
Original Ground Level
Seed
Fertilizer
Y
Z
X
Item Dimension Description
X ¾ in. (19mm) Seed Depth
Y ¾ in. (19mm) Seed to Fertilizer Depth
Z 1-½ in. (38mm) Seed to Fertilizer Separation