Table 1. Nutrient ranges in tissue analysis of high quality ‘Red Sunset’ maple (Acer rubrum).
Nutrient	units	Minimum	Maximum
Nitrogen	%	2.8	3.1
Phosphorus	%	0.28	0.38
Potassium	%	0.9	1.1
Calcium	%	0.45	0.65
Magnesium	%	0.15	0.20
Sulfur	%	0.18	0.22
Iron	ppm	120	250
Manganese	ppm	70	285
Zinc	ppm	45	56
Copper	ppm	6	8
Boron	ppm	13	19
Max and min values were determined by considering only the highest quality plants and calculating the 25^th and 75^th percentile for each nutrient.

Table 2. Soil and nutrient properties of fields with high quality ‘Red Sunset’ maple (Acer rubrum).
Nutrient	units	Minimum	Maximum
pH		5.0	5.8
SMP pH		6.0	6.4
Organic matter	%	3.0	4.4
Phosphorus	ppm	50	100
Potassium	ppm	160	220
Calcium	meq	6	10
Magnesium	meq	1.0	1.6
Sulfur	ppm	9	18
Iron	ppm	50	120
Manganese	ppm	20	40
Zinc	ppm	1.8	2.7
Boron	ppm	0.2	0.3
Copper	ppm	1.0	2.1
Soluble salts	mmhos	0.2	0.9
Max and min values were determined by considering only the highest quality plants and calculating the 25^th and 75^th percentile for each nutrient or parameter.