OPERATION
Table 3.11 Recommended Windrow Characteristics
Characterist
ic Advantage
High and fluffy
Enables a ir flow through windrow which is more important to the curing
process than direct sunlight
Consistent formation (not bunching) Permits an even flow of material into the baler, chopper, etc.
Even distri
bution of material
across wind
row
Results in even and consistent bales to min imize handling a nd
stacking problems
Properly conditioned
Prevents excessive leaf damage
3.16.5 Driving on Windrow
Driving o
n previously cut windrows that will not be raked can lengthen drying time by a full day. If practical, set
forming s
hields to produce a narrower windrow that the machine can straddle.
NOTE:
Driving on the windrow in high-yield crops may be unavoidable if a full width windrow is necessary.
3.16.6 Raking and Tedding
Raking
or tedding speeds up drying; however, the resulting leaf loss may outweigh the benefits. There is little o r no
advant
age to raking or tedding if the ground beneath the windrow is dry.
Large w
indrows on damp or wet ground should be turned over when moisture levels reach 40–50%. Hay should not
be rak
ed or tedded at moisture levels below 25%, however, or excessive yield loss will result.
3.16.
7 Using Chemical Drying Agents
Hay drying agents work by removing wax from legume surfaces and enabling w ater to escape and evaporate faster.
However, treated hay lying on wet ground will absorb ground moisture faster.
Before deciding to use a drying agent, carefully compare the relative costs and benefits for your area.
147910 103 Revision A