<human>:  What would be a good way to get rid of cow manure instead of using as fertilizer?
<bot>: Biogas is one technique for composting cow manure to remove some of the odors and reduce landfill contamination. Another option is to add the manure to a compost pile, which naturally breaks down the organic material and reduces odor, and can be used as fertilizer. Other steps can be taken to reduce odor, such as adding bacteria and packing the manure in plastic or paper bags, or spreading manure out on the ground.