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. 2018 Sep 17;13(9):e0203385. doi: 10.1371/journal.pone.0203385

Fig 2. Changes in ammonia 15NEP sizes with forages.

Fig 2

Ammonia 15N excess pool (15NEP) size (% of the initial dose) from 15N-labelled forages (open symbols) and 15N-labelled ammonia with unlabelled forages (filled symbols). Formic acid-treated silages (FAS15, FAS; dotted line), untreated silages (UTS15, UTS; dashed line), dried grasses (DG15, DG; long dashed line). Time × treatment interaction for 15N labelled forages P = 0.019 and unlabelled forages P = 0.002.