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A recently completed study by the Department of Agriculture, Trade and Consumer Protection and the Department of Natural Resources has increased the understanding of air emissions and odors on larger-sized livestock farms, and lays the groundwork for future studies in this important area, officials say.
News reports have surfaced detailing flash fires and explosions in livestock buildings while liquid pit manure was being agitated and pumped. For this reason, Extension staff are urging caution when agitating and pumping manure from pits beneath buildings.
With odor climbing near the top of things dairymen should regulate, the Patz Corporation developed a way to zap it from a dairy’s list of concerns.
Its new OZy manure treatment system released in August uses electricity to treat manure prior to storage or land application. Manure with less than 8 percent solids is drawn from a storage vessel into the machine.
Liquid manure is a valuable source of nutrients and organic matter for crop production and may be applied by a variety of methods including irrigation, surface spreading and shallow subsurface injection. With a low nutrient concentration, liquid animal manure may be applied at relatively high volumes, but it is generally recommended that it not be applied at rates that exceed the soil infiltration rate, nor exceed the amount needed to bring the soil to field water-holding capacity. Liquid manure discharges from agricultural drains have been reported in soils with subsurface (tile) drainage due to macropore flow.
As plans for planting and getting into fields accelerate, preparing ahead for manure application will help to streamline the process, insure proper nutrient application rates to support anticipated crop yields, prevent nutrient losses, and comply with manure application regulations.
Manure dairy nutrients to maintain yields while protecting water quality requires having the infrastructure in place that will enable the nutrients to be land-applied at appropriate rates.
In the nine years the Discovery Farms program has been operating, Dennis Frame has been able to identify high-risk situations leading to pollution from runoff.
Creating and maintaining a nutrient management plan is becoming a cost of doing business for most livestock operations in today’s environment. But, for a limited time, it is available at no cost to the producer. That’s right – it’s free!
Phosphorus is an abundant nutrient in dairy manure – sometimes more abundant than what an individual dairy needs. Now, thanks to a two-step chemical/mechanical process developed by Kemira and available through Environmental Resolutions, dairymen can remove and bind much of the phosphorus to the manure solids, thus leaving the liquids low in phosphorus and ready for irrigation.
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