Humus Testing

Humus is a colloidal substance formed by the decomposition and transformation of organic matter by microorganisms, generally showing black or dark brown. Humus is the main component of soil organic matter, accounting for about 50% - 65% of the total organic matter. Humus helps to improve the physical properties of soil, enhance soil fertility and promote soil microbial activity, which plays an important role in crop growth.

Humus testing uses a series of physical and chemical techniques to analyze the composition, content and structure of humus in the soil. Professional humus testing can help us understand soil fertility and determine the physical and chemical properties of the soil, thereby selecting crops suitable for planting, guiding rational fertilization, and promoting the improvement of crop quality and yield. In addition, humus testing can help determine the stability and maturity of sludge, provide a basis for final disposal of sludge, and play a positive regulatory role in the rational utilization of sludge.

STEMart provides comprehensive humus testing services to help understand the physical and chemical properties of soil, guide agricultural cultivation, and play a positive role in the harmless treatment and rational use of sludge.

Test Samples

Compost humus, biogas residue humus, inert humus, natural humus, mixed matrix humus, humus acid, humus soil, etc.

Standard Tests

• Component analysis
• Content testing
• Physical and chemical analysis
  • Solubility
  • Graininess
  • pH value
  • Thermal stability
  • Optical property
  • Electric conductivity
  • Adsorption characteristic
  • Microbial degradability
  • Water purification performance
  • Soil improvement performance
  • Fertilizer effect evaluation
  • Soil water retention
  • Soil aeration
  • Soil fertility retention
  • Plant growth promotion
  • Microbial activity

For more information about our humus testing services, please contact us.