PRS (Plant Root Simulator)™-probe
noun
1. An alternative soil analysis tool employing an ion exchange resin membrane to develop a picture of dynamic ion flux in soil and other heterogeneous media. When chemically pre-treated, the anion and cation exchange resin membranes exhibit surface characteristics and nutrient sorption phenomena that closely resemble a plant root surface. When buried in soil, the PRS™-probe can assess nutrient supply rates by continuously adsorbing charged ionic species over the burial period.

  

• Development of the PRS™ technology
• What a PRS™-probe measures
• How PRS™-probes work
• Benefits of the PRS™-probe
• PRS™-probe specifications
• Na⁺ and HCO₃^- as counter-ions
• PRS™-probe level of precision
• Limitations of the PRS™-probe
• Analysis of the PRS™-probes

• Nutrient Supply Rates
• Nutrient Supply Rates vs. Conventional Nutrient Extractions

• PRS™-probe burial lengths
• Types of PRS™-probe burials

• Raw membrane
• Ion-exchange resin beads in mesh bags

• Number of PRS™-probes in a study
• Using PRS™-probes in situ
• Soil type concerns when using PRS™-probes
• Insect or animal damage during burial
• Potential for nutrient desorption via mass action displacement

• Publishability of PRS™-probe data
• PRS™-probes in a variety of research fields
• PRS™-probes used around the world