Soil Analysis

Plant Tissue Analysis

Water Analysis


Fertilizer, Compost & Manure

Fertilizer/Compost/Manure Analysis Methods Used at Best-Test Analytical Services

Parameter

Units Reported

Methods

Electrical Conductivity

dS/m (mmhos/cm)

1:2 (v/v)

Nitrate-Nitrogen (NO3-N)

ppm = mg/kg

Ion-Selective Electrode (ISE)

Total Kjeldahl Nitrogen (TKN)

%

Kjeldahl

Phosphorus

%

Nitric-Perchloric Acid Digestion

Potassium

%

Nitric-Perchloric Acid Digestion

Calcium

%

Nitric-Perchloric Acid Digestion

Magnesium

%

Nitric-Perchloric Acid Digestion

Sodium

%

Nitric-Perchloric Acid Digestion

Zinc

ppm = mg/kg

Nitric-Perchloric Acid Digestion

Manganese

ppm = mg/kg

Nitric-Perchloric Acid Digestion

Copper

ppm = mg/kg

Nitric-Perchloric Acid Digestion

Iron

ppm = mg/kg

Nitric-Perchloric Acid Digestion

Boron

ppm = mg/kg

Nitric-Perchloric Acid Digestion

Phosphate-Phosphorus (PO4-P)

ppm = mg/kg

2% Acetic Acid Extraction

Sulfate-Sulfur (SO4-S)
ppm = mg/kg
2% Acetic Acid Extraction
Soluble Potassium (Sol. K)
ppm = mg/kg
2% Acetic Acid Extraction


tractor

watermain