TABLE 2.

Nitrogen accumulation and distribution at the flowering in peanut with four rates of biochar in the 2018 and 2019 growing seasons.

Year	Treatment	Total kg ha−1	Root		Stem		Leaf		Pod
			kg ha−1	%	kg ha−1	%	kg ha−1	%	kg ha−1	%
2018	B0	64.9 ± 5.12b	2.89 ± 0.27c	4.47	18.5 ± 1.10b	28.5	36.7 ± 3.37b	56.5	6.84 ± 0.74a	10.5
	B10	79.5 ± 2.11a	3.63 ± 0.28a	4.57	22.5 ± 0.87a	28.4	46.4 ± 2.36a	58.4	6.86 ± 0.91a	8.65
	B20	77.0 ± 1.75a	3.61 ± 0.17a	4.69	21.9 ± 1.81ab	28.4	44.5 ± 1.64ab	57.8	6.99 ± 0.73a	9.09
	B40	70.4 ± 2.94ab	2.93 ± 0.20b	4.16	20.7 ± 1.12ab	29.4	39.7 ± 1.16ab	56.5	7.00 ± 0.92a	9.93
2019	B0	61.9 ± 2.54b	2.73 ± 0.26b	4.43	17.2 ± 0.90b	27.8	35.2 ± 1.56c	56.9	6.78 ± 0.31a	11.0
	B10	77.1 ± 6.54a	3.51 ± 0.34a	4.56	21.4 ± 1.56a	27.8	45.4 ± 5.39a	58.8	6.81 ± 0.64a	8.90
	B20	76.5 ± 3.88a	3.57 ± 0.48a	4.68	22.1 ± 1.64a	28.9	44.0 ± 4.02ab	57.5	6.82 ± 0.70a	8.95
	B40	69.4 ± 1.05ab	3.02 ± 0.27b	4.35	19.2 ± 1.80ab	27.6	40.4 ± 1.44abc	58.2	6.81 ± 0.35a	9.82
ANOVA
Y		ns	ns		ns		ns		ns
B		**	**		**		**		ns
Y × B		ns	ns		ns		ns		ns

Y and B represent year and biochar application, respectively. B0, B10, B20, and B40 represent biochar application rates at 0, 10, 20, and 40 t ha⁻¹, respectively. For each parameter in each year, mean data with different letters denote significant difference among treatments at P < 0.05. **denote significance at the 0.01 probability level. ns denotes non-significance.