Research Article
Effect of ISPAD Anaerobic Digestion on Ammonia Volatilization from Soil Applied Swine Manure
Table 1
Characteristics of experimental manures where both the ISPAD or anaerobically digested manure and the open tank or untreated manure are one year old.
| | Property | Open tank manure | ISPAD manure |
| | TS (gL−1) | 37.7 (1.93) | 33.5(4.12) | | VS (gL−1) | 27.7 (1.75) | 23.0 (3.24) | | VS : TS | 0.73 (0.01) | 0.69 (0.01) | | VS : FS | 2.8 | 2.2 | | pH | 7.54 (0.01) | 7.60 (0.05) | | TAN (gL−1) | 1.31 (0.06) | 1.63 (0.08) | | TKN (gL−1) | 2.66 (0.20) | 2.35 (0.30) | | TAN : TKN | 0.49 (0.08) | 0.69 (0.12) | | TKN : FS | 2.66 | 2.33 | | (gL−1) | 2.29 (0.49) | 2.82 (0.48) | | (gL−1) | 1.42 (0.39) | 1.04 (0.16) |
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The standard deviation is in the parenthesis (). TS: total solids; VS: volatile solids; FS: fixed solids.
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