. 2016 Mar 16;11(3):e0150851. doi: 10.1371/journal.pone.0150851

Table 5. Comparative volumes, total N and the N concentrations among fractions, ¹⁵N excess and N recoveries of liquid vegetal- and animal-based organic fertilisers (mg·L^-1)^*.

Fertilizer	V (L)	N total (mg·L^-1)	N-organic (mg·L^-1)	N-NH⁺₄ (mg·L^-1)	N-NO^-₃ (mg·L^-1)	¹⁵N excess (atom %)	¹⁵N content (g)	Recovery (%)
Vegetal-based^†	520	330.8±31.6	282.6±6.0	26.5±0.6¹	21.6±0.0	2.62±0.07	4.51±0.10	42.7±3.6
Animal-based^‡	135	495.7±47.1	403.3±0.0	88.2±0.4	4.2±0.4	2.17±0.01	1.45±0.05	29.9±2.1

* Each value is a mean of three samples ± standard error.

^† Ammonium and nitrate nitrogen accounted for 55 and 45% of released total inorganic nitrogen, respectively.

^‡ Ammonium and nitrate nitrogen accounted for 95 and 5% of released total inorganic nitrogen, respectively.

Table 5. Comparative volumes, total N and the N concentrations among fractions, 15N excess and N recoveries of liquid vegetal- and animal-based organic fertilisers (mg·L-1)*.