Manure application

BMPs for manure application

Following the 4Rs is important when applying manure, too

Nitrogen loss and yield are the same for fertilizer and manure, if you follow the 4Rs.

Timing and inhibitor use affect manure N
- Overall, timing had more of an impact on nitrification of manure N than inhibitor use.
  - There was more manure N in the ammonium form and less nitrate-N from the November application compared to October, due to lower (<50 degrees) temperatures in this swine manure study.
Environment makes a difference
- In warm springs, most manure N nitrified to the nitrate form, regardless of fall application timing.
- In cool springs, late fall (November) applications had less nitrification.
Corn yields were higher following November vs. October manure applications.

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