Nova Scotia Wild Blueberry Soil and Leaf Nutrient Ranges

Figures & data

TABLE 1 Effect of Repeated Fertilizer Applications on Soil Organic Matter, Soil pH, and the Three Effected Blueberry Soil Nutrient Levels

	% OM	pH	P	K	B
			kg ha^−1
Fertilizer (n = 25)	9.53	4.61	85	156	0.27
No fertilizer (n = 19)	8.36	4.80	41	126	0.22
SEM	0.362	0.040	6.2	8.7	0.017
Significance	∗	∗∗∗	∗∗∗	∗	∗
All other nutrients were not affected. 44 fields were sampled in 1989–90 and again in 1997–98.
∗, ∗∗∗ Statistically significant at 0.05, 0.01 and 0.001 levels, respectively; NS, not significant (P > 0.05).

TABLE 2 Effect of Repeated Fertilizer Applications on Leaf Nutrient Concentration in Wildblueberry

	N	P	K	Ca	Mg
	%
Fertilizer (n = 25)	1.83	0.133	0.48	0.40	0.17
No fertilizer (n = 19)	1.79	0.120	0.45	0.39	0.17
SEM	0.027	0.0025	0.008	0.011	0.003
Significance	NS	∗∗∗	∗	NS	NS
44 fields were sampled in 1989–90 and again in 1997–98.
∗, ∗∗∗ Statistically significant at 0.05 and 0.001 levels, respectively; NS, not significant (P > 0.05).

TABLE 3 Means and Ranges of % Organic Matter, Soil pH, and Soil Nutrients in 44 Fields Sampled in 1989–90 and Again in 1997–98 (Total of 88 Samples). Values of Nutrientsexcept for pH and %OM are Given as kg ha⁻¹

	Mean	Range		% accounted for by mean ± S.D.
		Minimum	Maximum
% OM	9.0	6.7	11.3	69
pH	4.7	4.4	5.0	80
P	65	18	111	77
K	143	86	200	74
Ca∗	427	187	670	66
Mg	81	33	139	76
B	0.25	0.17	0.32	70
Fe	286	184	389	75
Mn	59	14	105	91
Cu	0.9	0.5	1.4	86
Zn	3.4	2.3	4.6	70
∗All soil values are explained by the mean ± 1 S.D., except for Ca (66%).

TABLE 4 Percentage of wild blueberry fields deficient or in excess of Trevett (1972) standards

	Trevett Standards		NS status (1989–90; 1997–98)
	Min	Max	Mean	% Deficient	% Excess
N (%)	1.6	2.0	1.8	10	6
P (%)	0.125	0.222	0.130	42	0
K (%)	0.40	0.90	0.47	12	0
Ca (%)	0.27	0.52	0.39	1	4
Mg (%)	0.13	0.25	0.17	2	1
Cu (ppm)	7	14	1.3	98	0
B (ppm)	24	60	25	48	1
Zn (ppm)	25	50	19	92	0
Fe (ppm)	50	100	39	87	0
Mn (ppm)	750	1502	1502	2	48

TABLE 5 Proposed Ranges for Wild Blueberry Leaf Nutrient Ranges in Nova Scotia, Canada

	Nova Scotia leaf nutrient ranges
	Minimum	Maximum
N (%)	1.6	2.0
P (%)	0.110	0.144
K (%)	0.41	0.52
Ca (%)	0.32	0.47
Mg (%)	0.15	0.19
Cu (ppm)	0.01	2.5
B (ppm)	19	31
Zn (ppm)	16	22
Fe (ppm)	32	46
Mn (ppm)	1169	1834

Trevett , M.F. 1972 . A second approximation of leaf analysis standards for lowbush blueberry . Res. Life Sci. Maine Agr. Expt. Sta. , 19 ( 15 ) : 15 – 16 .

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