Agriculture Reference
In-Depth Information
Bale size is dictated, for the most part, by the automated bale wagon that will be used to
pick up and stack the hay. The currently popular wagon requires a 40-inch-long bale weigh-
ing approximately 65 to 70 pounds. The tightness of the bale can be adjusted. Tight bales
handle well, stack well, and shed weather better. A too-dry bale must be baled tight in order
to retain its leaves, but too-wet hay that is baled tight will result in heating and molding.
Bales are generally left in the field for a few days to cure or sweat, particularly if ad-
equate dew was on the hay during baling. Often, you have to gather the bales because rain is
in the forecast or because you need to irrigate the next cutting. Today stacking is generally
done with automated bale wagons, resulting in tight, stable stacks with staggered joints. A
tall stack results in fewer top and bottom bales, the ones commonly lost to weathering and
ground moisture. Side bales generally do not get drenched during a rain, so they dry out
adequately. The middle bales are protected.
If the bales contain too much moisture, they can ferment and create heat. The heat can
be great enough to result in spontaneous combustion, causing an entire stack to catch fire.
You can check the internal temperature of a bale by simply cutting the strings and passing
your hand between some flakes. It should feel cool. If it is only slightly warm, the problem
is minimal and may not result in any spoilage or fire.
