R2elk
Almost Self-Reliant
If the horse manure is from stall cleanings with bedding and urine included, it will be extremely "hot" for nitrogen. Plants such as beans and peas cannot tolerate such high nitrogen levels. If it is just the road apples it will be great.Mine is extremely low in nitrogen too, the only place I can grow things has taken me years of work and mixing chicken manure in. I’m about to expand my garden spot for next year and I plan on getting as much horse manure as I can to start turning into the soil. At least inside my fence is better. I’ve had animals fertilizing and clover growing in it for years. Next person to get this property will be far better off.