C. Jakobsson 5/2003
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 Ammonia reduction measures for application of manure
Incorporation within 4 hours
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•Since 1996, manure, slurry or urine must be incorporated within 4 hours after land application when spreading on bare soils. This applies to three counties in southern Sweden.
–When applying manure, slurry and urine it is of great importance that incorporation takes place as soon as possible, as the largest ammonia emissions take place immediately after application. The ammonia emissions are high, when the contents of ammonia nitrogen are high in the urine, slurry or manure. It is not until the ammonia ion is adsorbed by soil particles or assimilated by crops, that the risk of ammonia emissions is practically inhibited.