When and How to Apply Composted Manure to Pastures

Composted Manure: Black Gold.

If you’ve taken the time to compost horse manure, the next step is applying it in a way that benefits your pasture—without risking nutrient overload or damaging your grass. Here’s a guide to help you get the timing and technique just right.

Why Apply Composted Manure?

Composted manure is packed with nutrients that improve soil structure, support microbial life, and promote strong grass growth. Unlike raw manure, composted material is more stable, easier to handle, and less likely to carry harmful pathogens or weed seeds. It also helps reduce parasite reinfection cycles in equine pastures, especially when combined with regular manure collection using tools like the Tow and Collect.

Best Time of Year to Apply Composted Manure

Timing is everything when it comes to application. In the U.S., the ideal times are:

Spring (March–May)

• Pastures are actively growing, making this an excellent time to replenish soil nutrients.
• Avoid applying to wet or saturated ground to prevent compaction and runoff.

Fall (September–November)

• Applying in fall allows nutrients to break down and settle over winter, preparing your pastures for lush spring growth.
• Choose early fall to give grasses time to absorb nutrients before dormancy.

Avoid mid-summer applications, especially during heatwaves or drought. Nutrient uptake slows and excess nitrogen can stress plants.

How to Apply Composted Manure to Pastures

1. Ensure the Compost is Fully Mature

• Compost should be dark, crumbly, and earthy-smelling—not hot or sticky.
• Mature compost ensures nutrients are stable and safe for grazing animals.

2. Use the Right Tools

• A manure spreader works best for even distribution. We recommend the Conestoga brand Manure Spreaders, like the one used below.
• For small properties, compost can be manually spread and lightly raked.

3. Apply at the Right Rate

• 1–3 tons per acre is a typical recommendation, depending on soil test results and pasture needs.
• Overapplication can lead to nutrient runoff and environmental issues.

4. Incorporate if Possible

• Light harrowing after application helps incorporate nutrients and minimizes surface runoff.

5. Rest the Pasture

• Keep horses or livestock off the field for at least 2–4 weeks post-application to prevent overgrazing and allow grass recovery.
• This also ensures that any lingering pathogens from immature compost are rendered harmless.

The Link Between Regular Manure Collection and Composting Success

Using a Tow and Collect to remove manure regularly not only keeps your pasture clean—it gives you a continuous supply of fresh material to compost. Collecting waste before it becomes a health hazard helps break the parasite cycle and sets the stage for healthier composting and soil building.

Plus, with models like the Mini 700 or 1220, even small acreage owners can keep up with manure collection efficiently and without backbreaking work.

Final Tips for Healthy Pastures

• Test your soil annually to track nutrient levels and adjust compost application accordingly.
• Rotate pastures to avoid overgrazing and allow full nutrient uptake.
• Keep grass under 4 inches before applying manure or compost to ensure good soil contact and brush effectiveness if you’re still collecting manure manually

By following these best practices, you’ll make the most of your composted manure—improving pasture health, reducing chemical fertilizer use, and giving your animals a safer, cleaner place to graze.