If you have horse poop, then you have a great opportunity to make a LOT of worm compost or vermicast. Vermicast is the poop of worms, usually a particular type of worm that lends itself well to composting. With worms, the end material is greater than the sum of the parts that were put into it! Through their digestion, the worms convert the horse poop into an excellent, all natural, complete fertilizer that improves the structure of the soil and makes it hold more water.
I wrote about worm composting in this earlier post https://sylviatramos.blog/2018/01/23/easy-vermicomposting-with-african-night-crawlers/
I was sort of forced to simplify my technique when the wood barrels I was using failed. During the summer, I did not realize that the gaps in the barrels had sealed up and my worms got overheated. It got steamy inside the barrels. Sad to say, some of the worms melted! I moved the worms to a raised bed for vegetables that wasn’t being used. They’ve stayed there since summer because they’re doing better than ever on the ground! All the things I thought I knew about worm care previously has been turned on its head!
What I learned from the worms
I didn’t think they would do well on the ground, but it now makes sense! I think their current environment is more natural. I kept them in containers before because I was worried about them either crawling away or being eaten by ants. I think some of the birds are able to get into the worm bin, but on the whole the worms seem to be doing much better than in the barrels. I don’t think any of them have run away!
My current on the ground set up has better drainage and ventilation than the old set up. Before when I would harvest the vermicast, I would classify it as Grade A, B, or C. Now all of my harvest is Grade A!
I also found just the right gadget for sifting the vermicast. It’s a big and flexible Tubtrug colander. I carefully sift the compost to make sure the worms don’t get mixed into the harvest and also to remove all the uncomposted bits. When I’m sifting, it feels like I’m returning a lot of it back into the worm bed. But when I’m done, my yield is much more than before! I’m now getting a lot more vermicast for the same amount of horse poop compost. I am able to harvest so much vermicast that I was able to give out big bags of it to close friends and relatives during the holidays!
I water the worms with water that has been left out to sit for at least 24 hours. This is to make sure that the chlorine in the water evaporates.
This is what it looks like when the horse poop compost is freshly applied.
And this is what if looks like after 21 days.