All Tests

8003-34-7

SP.

This is a soil properties test that quantifies the soil water content of a saturated soil. At saturation all soil pore space is occupied by water and no free water collects on the surface. Estimates of soil water holding capacity, wilting point and texture can be made from the saturated moisture content. The method is generally reproducible within ± 12%.

Se. This method determines the amount of selenium in a sample. Samples are digested using perchloric and sulfuric acids. Values are determined Inductively-Coupled Plasma Emission Spectrometer (ICP-AES). The method has a detection limit of 0.5 ug/L.

This method quantitatively determines the concentration of silica in botanical materials utilizing a nitric-perchloric acid digestion. Digest analyte concentrations are determined by atomic absorption spectrometry (AAS) and/or inductively coupled plasma atomic emission spectrometry (ICP-AES). The method detection limit is approximately 0.02%. Si.

Na.

This is a soil salinity test. This method determines the concentration of sodium in a soil saturation paste extract using Atomic Absorption Spectrometry (AAS) or Inductively Coupled Plasma Emission Spectrometry (ICP-AES). The method detection limit for these cations is approximately 0.02 mmolc/L on a solution basis and it is generally reproducible within ± 7%.

Na. This test method determines the concentration of sodium by utilizing an acid digestion and determination by atomic absorption spectrometry (AAS). The method has detection limits ranging from 0.1 mg/Kg. The method is generally reproducible within 8%.

β-glucosidase enzyme assay, Fluorescein diacetate hydrolysis, Amidase enzyme assay, Phosphatase enzyme assay, Sulfates enzyme assay, Dehydrogenase enzyme assay, Chitinases enzyme assay, Cellulase enzyme assay

NO3-N, Olsen P (Bray-P for pH<6), K, Zn, Mn, Fe, Cu, pH & EC (in 1:2 soil:water), Free Lime, xCa, xMg, xNa, B (hot water), CEC, SO4-S.

This is a fertility and salinity package. It tests for nitrates, phosphorus, potassium, zinc, manganese, iron, copper, pH & EC, free lime, exchangeable calcium, exchangeable magnesium, exchangeable sodium, boron, cation exchange capacity and sulfates.

NO3-N, Olsen P (Bray-P for pH<6), K, Zn, Mn, Fe, Cu, SP, pH, ECe, ESP, Free Lime, sK, sCa, sMg, sNa, B (hot water), SO4-S, Cl.

This is a fertility and salinity package. It tests for nitrates, phosphorus, potassium, zinc, manganese, iron, copper, pH, SP, ESP, free lime, soil potassium, soil calcium, soil magnesium, soil sodium, boron, sulfates and chlorine.

Zn, Mn, Fe, Cu. This package is a combined test for four micronutrients.