SLAN (Solvita Labile Amino-N) is a unique bio-chemical soil test to assess stored organic nitrogen present in various amino-forms associated with humus. The content of SLAN is a general indicator of improved soil quality.
This laboratory application requires a small of amount of dried, weighed soil to be extracted by NaOH in the presence of a Solvita ammonia detector probe, which captures the amino-N forms as they volatilize inside an incubation jar over 24-hrs.
Results of SLAN are preferably read with a Solvita Digital Colour Reader in the NH3-mode to attain appropriate quantification as mg/kg Amino-N.
The Digital Colour Reader can be ordered separately.
The kit contains: 100 NH3 probes and colour chart.