Optimum Ranges of Nutrient Concentrations in Strawberry Leaves
Plant Part	Time of Sampling	N	P	K	Ca	Mg	Mn	Fe	Zn	B
		Percent (%)					Parts per Million (ppm)
Recently matured leaves, petioles removed	Prior to July 1, in fruiting fields	2.0-3.0	0.20-0.50	1.5-2.5	0.5-1.5	0.25-0.5	20-200	25-200	15-100	20-60
	Prior to August 20, in non-fruiting fields