Data from: Ammonia emissions and corn yield response from injected versus surface‐applied liquid‐separated anaerobic digestate

<p dir="ltr">Anaerobic digestion and digestate solid-liquid separation are manure treatment strategies used on commercial dairy farms. These treatment strategies typically result in increased total ammoniacal nitrogen concentration (TAN) and pH, and reduced dry matter content, which tend to increase ammonia (NH3) emissions following field application. We hypothesized that shallow disk injection of liquid-separated, anaerobically digested dairy manures, compared to surface application without incorporation on no-till farmland, would reduce ammonia-nitrogen concentration (NH3-N) emissions and conserve manure-nitrogen (manure-N) for crop production. Six corn (Zea mays L.) silage studies were established on commercial dairy farms across Pennsylvania in 2021-2023 with side-by-side field-scale treatment comparison strips replicated five times per farm. We quantified the impact of liquid-separated, anaerobically digested manure application methods on: i) NH3 emissions for 24 hours after application, ii) in-season soil nitrate-nitrogen (nitrate-N), iii) cornstalk nitrate at harvest, iv) corn silage production, and iv) returns on investment.</p>

[
  "005:18",
  "005:20"
]

[
  "005:040"
]