Soil & Compost Ammonia Test Strips

SKU: 33817-AMM

$19.95USD or lower Each

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Test ammonia in compost and soil leachate to monitor nitrogen balance and maturity. Fast, field-ready Indigo® 0-100 ppm ammonia test strips for sustainable soil and fertilizer management.

Ammonia levels in compost and soil extracts provide a clear window into nitrogen cycling and fertilizer efficiency. Using Indigo®  0-100 ppm ammonia test strips, growers and researchers can assess whether nitrogen is being retained, released, or lost as volatile ammonia gas. These quick visual tests are ideal for organic farming, compost research, and soil health education, helping users balance microbial decomposition with nutrient preservation.

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Details

Learning Outcomes by Discipline

Learning Outcomes / Key Features Description
Understanding Nitrogen Cycling Demonstrate how organic nitrogen converts to ammonia and nitrate through microbial mineralization and nitrification.
Compost Maturity Assessment Use ammonia levels as an indicator of compost stabilization and readiness for soil application.
Soil Fertility Evaluation Measure ammonium content in soil extracts to monitor fertilizer effectiveness and nitrogen retention.
Environmental Stewardship Link excess ammonia release to nutrient runoff, eutrophication, and the importance of balanced nitrogen management.
Experimental Design Skills Collect and analyze leachate or soil-water extracts, control variables such as aeration and C:N ratio, and interpret ammonia test results over time.
Practical Laboratory & Field Techniques Apply simple dip-strip colorimetric testing as a rapid, reagent-free method for both classroom and field investigations.
Cross-Disciplinary Relevance Integrate chemistry, microbiology, and agronomy concepts to explore the link between nutrient chemistry and sustainable soil management.

Best Practices

  • Collect leachate or soil-water extract after rain or irrigation.
  • Dip strip for 2 seconds, compare after 60 seconds for best accuracy.
  • Test multiple compost zones (core, surface, edges) for consistency.
  • Use periodic testing (e.g., weekly) to track curing progress.
  • Record values alongside temperature and moisture data for interpretation.

If you are looking to test for leaking ammonia refrigerant gas, click on phenolphthalein ammonia gas indicator test papers. Or, if you need a supersenstive detector for gloveboxes, click on ammonia leak detector cloth. For general information on ammonia, click on: Ammonia-Refrigerant, Leak Detector & Disinfectant.

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Specifications
  • The number of strips (25) per vial is approximate.
  • Shelf life is a guaranteed minimum 3 years but vial is lined with a desiccant and if properly sealed, strips can last 5 years or more.
  • Made in USA with NIST calibration standards
Documentation

Test Strip Documentation
Stability Statement Certificate of Analysis SDS
Indigo Ammonia Test Strips 0-100ppm Stability Statement Indigo Ammonia Test Strips 0-100ppm Certificate of Analysis Indigo Ammonia Test Strips 0-100ppm SDS
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