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3.15.4 Windrow Characteristics
Adjust speed and header variables to achieve the ideal windrow characteristics.
Table 3.9 Windrow Characteristics
Configuration
Advantage
High and fluffy
Movement of air through the windrow is more important to the curing
process than is direct sunlight.
Consistent formation, not bunchy
Permits an even flow of material into the baler, chopper, etc. and allows
for more even drying.
Even distribution of material across
windrow
Results in even and consistent bales to minimize handling and stacking
problems.
Properly conditioned
Prevents excessive leaf damage.
Refer to 3.12 Header Operating Variables, page 43 for instructions on adjusting the header.
3.15.5 Driving on Windrows
Driving on previously cut windrows can lengthen drying time by a full day in hay that will not be raked. If practical, set
forming shields for a narrower windrow that can be straddled.
NOTE:
Driving on windrows in high-yielding crops may be unavoidable if a full width windrow is necessary.
3.15.6 Raking and Tedding
Raking or tedding speeds up drying; however, benefits must be evaluated against additional leaf loss.
There is little or no advantage to raking or tedding if the ground beneath the windrow is dry. Large windrows on damp or
wet ground should be turned over when they reach 40–50% moisture.
To avoid excessive yield losses, hay should not be raked or tedded when moisture is less than 25%.
3.15.7 Chemical Drying Agents
Hay drying agents work by removing wax from legume surfaces, so that water can escape and evaporate faster.
However, treated hay lying on wet ground will also absorb moisture faster. Costs and benefits relative to your area should
be carefully considered before using a drying agent.
OPERATION
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