Horse Manure - Does It Have Any Uses?
I grew up on a dairy farm and learned early in my life that cow
manure is useful. That usefulness may have been born out of
necessity, though. After all, the manure from a herd of 50 cows
has to go somewhere right? That's how I learned that cow manure
makes a great fertilizer. But we never had horses on our farm so
I started wondering if horse manure is useful as a fertilizer
too.
Although there is a wide range of weights among horses depending
on the breed, an average adult riding horse weighs approximately
900 - 1,100 pounds. A horse that size produces around 8 to 9
tons; or between 16,000 and 18,000 pounds of manure every year.
That's a lot of horse manure.
What is done with that manure? One option for disposal is to
haul it to a landfill site, but that is not an eco-friendly
option and some landfills will not accept horse manure. The best
option is to spread the horse manure on land so it decomposes
quickly, or to compost it and then use it to improve soil
quality.
One problem with using horse manure to fertilize ground is that
many people use sawdust or wood chips as bedding in horse
stalls. When the stalls are cleaned, the dirty sawdust or wood
chips as well as the manure are removed. While the horse manure
itself is a good fertilizer, the sawdust and wood chips are not
crop friendly. That's because when wood breaks down in the soil
a nitrogen deficiency occurs, which stunts the growth of crops.
To combat this problem, a nitrogen fertilizer can be added to
the soil after horse manure is spread on it; or a nitrogen
fertilizer can be added to the horse manure and sawdust or wood
shavings mixture before being added to the soil.
A great way to use horse manure is to add it to a compost pile.
When adding the manure to a compost pile, any sawdust and wood
chips present in the manure are okay. They are a good "brown"
component to compost. It takes about six months for the manure,
sawdust or wood chips, and any other materials added to the
compost pile to completely break down and become what many
people call "black gold."
To make a compost pile with horse manure as one of the
components, layer it with green compost items. Many experts
suggest alternating layers of brown and green compost items
because you need sources of both carbon (brown items) and
nitrogen (green items) in your compost pile. Brown items such as
horse manure, wood chips, and sawdust are great sources of
carbon. A few good sources of nitrogen (the green items) for a
compost pile include: green leaves, fresh grass clippings, the
scraps from raw fruits and vegetables, and coffee grounds. Yes,
coffee grounds are brown, but for the purposes of compost they
are considered a green item because they provide the compost
pile with nitrogen.
Because the compost pile is a living thing, it needs water and
air to thrive. Your compost pile should be turned each week,
adding water as needed to keep the compost pile damp. You'll
know the process of breaking down has completed when the compost
material is dark and crumbly and fresh smelling.
Once the horse manure and other materials have turned into the
"black gold" I mentioned a little earlier in this article, it's
finally time to put the black gold to good use. While compost
isn't officially considered a fertilizer, it contains nutrients
that are great for plants and soil. Some good ways to use your
horse manure compost are: as mulch for garden plants and around
landscaping; as a soil improvement component for sandy soil; as
a soil improvement for clay soil; and as a material to help
control erosion.
Now you know that horse manure, that smelly waste product from a
beloved animal, is a useful by product that is environmentally
friendly.