|Fresh horse manure|
|Typical Nutrient Content|
Horse manure is richer in nitrogen than cow or swine manure, so it is a "hot" manure. A common source of horse manure is rural stables, where owners usually bed the animals very well. Horse manures sourced from stables, therefore, may also contain large amounts of other organic matter such as wood shavings or straw with manure mixed in. Some sources of mushroom compost contain large quantities of horse manure and bedding in their mix. Because it is hot it should be composted along with other manures and higher carbon materials. Unfortunately horse manure also contains a higher number of weed seeds than other comparable manure fertilizers.