Identify a field to be frost seeded. Worn out pastures can be reinvigorated by an application of frost seeded clover.
Spread manure on the field in the fall after growth has ceased. Spreading it any earlier feeds the crop that is already there and not the clover seed you are planting.
Broadcast the clover seed on top of the manure in late winter or early spring. Frozen ground is easy to drive over. Mount an electric seed spinner on top of an ATV or, if there is a lot of snow, mount it on a snowmobile.
Mix red clover seed with manure. Michigan Farmer recommends blending clover seed with manure before spreading it. The American Society Of Agricultural and Biological Engineers made a slurry with swine manure and water, which was then mixed with clover seed. The mixture was put in a slurry tank and drilled into the soil. Blending the seed with the manure is faster because you only need to go onto the field once.