OPERATING THE HEADER
6.14 Haying Tips
6.14.1 Curing
A quick cure wi
ll ma intain top quality because
• 5% of the prot
ein is lost for each day hay lies on the ground.
• The sooner th
e cut hay is harvested, the earlier the start for next growth.
Leaving the w
indrow as wide and thin as possible m akes for the quickest curing.
Cured hay sh
ould be baled as soon as possible.
6.14.2 Tops
oil Moisture
Level
% Moisture Condition
Wet
Over 45% Soil is m uddy
Damp 25–45% Shows footprints
Dry
Under 25% Surface is dusty
• On wet soil, the general rule of “wide and thin” does not apply. A narrower w indrow will dry faster than hay left flat
on wet ground.
• W hen the ground is wetter than the hay, moisture from the soil is absorbed by the hay above it. D etermine topsoil
moisture level before cutting. Use a moisture tester or estimate level.
• If ground is wet due to irrigation, wait until soil moisture drops below 45%.
• If ground is wet due to frequent rains, cut when weather allows and let the forage lie on wet ground until it dries to
the moisture level of the ground.
• C ut hay will dry no more until the ground under it dries, so consider moving the windrow to drier ground.
6.14.3 Weather and Topography
• C ut as much hay as possible by midday when drying conditions are best.
• Fields sloping south get up to 100% more exposure to the sun’s heat than do north sloping fields. If hay is baled
and chopped, consider baling the south facing fields, and chopping those facing north.
• W hen relative humidity is high, the evaporation rate is low and hay dries slower.
• If there is no wind, saturated air becomes trapped around the windrow. Raking or tedding will expose the hay to
fresher, less saturated air.
• Cut hay perpendic ular to the d ire c tio n o f the preva iling winds is also reco mmended.
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Rev. F
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