Normal Leaf Level Ranges

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Nutrient Units Range Units Range Units Range Units Range Units Range
Nitrogen % N 2.2 - 2.6 % N 2.2 -  2.4 % N 2.2 - 2.6 % N 2.0 - 2.4 % N 2.20 - 2.60
Phosphorous % P 0.08 - 0.25 % P 0.08 - 0.44 % P 0.08 - 0.25 % P 0.1 - 0.25 % P 0.08 - 0.25
Potassium % K 0.75 - 2.0 % K 1.0 - 3.0 % K 0.8 - 2.0 % K 0.8 - 2.0 % K 0.71 - 2.00
Sulphur % S 0.2 - 0.6 % S 0.2 - 0.6 % S 0.2 - 0.6 % S   % S 0.20 - 0.60
Calcium % Ca 1.0 - 3.0 % Ca 1.0 - 4.5 % Ca 1.0 - 3.0 % Ca 1 - 3 % Ca 1.00 - 3.00
Magnesium % Mg 0.25 - 0.8 % Mg 0.25 - 1.0 % Mg 0.25 - 0.80 % Mg 0.25 - 0.8 % Mg 0.25 - 0.80
Zinc ppm Zn 40 - 80 ppm Zn 30 - 250 ppm Zn 30 - 150 ppm Zn 30 - 150 ppm Zn 30 - 150
Copper ppm Cu 5.0 - 15 ppm Cu 5.0 - 15 ppm Cu 5 - 15 ppm Cu 5 - 15 ppm Cu 5 - 15
Sodium % Na less than 0.25 % Na less than 0.25 % Na less than 0.25 % Na   % Na  
Chloride % Cl less than 0.25 % Cl less than 0.25 ppm Cl less than 0.25 % Cl   % Cl  
Iron ppm Fe 50 - 200 ppm Fe 50 - 300 ppm Fe 50 - 200 ppm Fe 50 - 200 ppm Fe 50 - 200
Boron ppm B 40 - 60 ppm B 12 - 100 ppm B 35 - 80 ppm B 50 - 100 ppm B 50 - 100
Manganese ppm Mn 30 - 500 ppm Mn 30 - 700 ppm Mn 30 - 500 ppm Mn 30 - 500 ppm Mn 30 - 500

University of California DANR Analytical Lab - Leaf and Soil tests