Summary Price Table
This service provides valuable insights into the decomposition process facilitated through soil microbial activity, direct contributors to nutrient cycling, biodiversity, carbon sequestration and water holding capacity. By measuring the remaining mass of the tea, this service can help you assess the biological activity in your soil. The following options are available:
Our teabag litter decomposition service follows the standardized protocol developed for global soil health assessments outlined by Keuskamp, 2013 and modified by Hayes, 2024. This method uses pre-weighed tea bags filled with standardized organic material (Rooibos tea). The tea bags are buried in the soil and retrieved after 105 days to measure decomposition rates.
Measure provided: Mass remaining of Rooibos tea (Br), to three decimal points (0.000)
Custom Tea-Test Services (Hourly Rate): We can adjust the decomposition period or add additional biological assessments depending on your information needs.Measures provided: For each sample returned to the lab, we will calculate the mass of Roobios tea remaining (Br) which indicates the biological decomposition rate for your soil. The results will help guide soil management practices and optimize organic matter turnover and nutrient cycling in your system.
We offer comprehensive microscopic biological assessment of soil samples. Whether you collect the samples yourself or prefer our team to assist, each sample is processed within 48 hours. Shadowing microscopy is used to determine the count and biomass of microorganisms including nematodes, protozoa (amoeba, flagellates and ciliates), fungi, and bacteria. This assessment provides valuable data on soil health, nutrient cycling, and biological community composition. Additional fees apply if on-site support is required for soil collection.
Measures provided: Bacterial biomass (ug/g), fungal biomass (ug/g), count of nematodes per gram, identified to their food source (bacteria, fungi, root, predatory), count of protozoa per gram (amoeba, flagellates and ciliates)
This package includes:
Measure provided: pH (concentration of Hydrogen ions)
Measure provided: Percent organic matter (%)
Measure provided: Percentage of stable aggregates remaining (%)
All tests are conducted in-house at the EcoSoil Lab, offering reliable and high-quality insights into soil health. Processing fees for drying, grinding, and storage are included.
This comprehensive soil health package includes microscopic biological soil assessment, pH analysis, LOI, and aggregate stability. It provides a holistic view of your soil’s biological and physical health, enabling you to make informed management decisions. All assessments are processed at the EcoSoil Lab, with handling fees included.
A la Carte Soil Health Assessments
Contact us to discuss any individual tests or combinations of tests you wish to purchase. We are happy to offer a no-charge consult to discuss your soil assessment objectives.
Carter, M.R., Gregorich, E.G., 2007. Soil Sampling and Methods of Analysis. CRC Press.
Hayes, E.B., Norris, C.E., Volpe, J.P., 2024. A field assessment to validate the assumptions of the Tea Bag Index (TBI) as a measure of soil health. Applied Soil Ecology 195.
Ingham, E., Klein, D.A., 1984. Soil fungi: Relationships between hyphal activity and staining with fluorescein diacetate. Soil Biology and Biochemistry 16, 273-278.
Kalra, Y.P., Maynard, D.G., 1991. Methods Manual for Forest Soil and Plant Analysis. Natural Resources Canada, Edmonton, Alberta, pp. 30-31.
Keuskamp, J.A., Dingemans, B.J.J., Lehtinen, T., Sarneel, J.M., Hefting, M.M., Muller‐Landau, H., 2013. Tea Bag Index: a novel approach to collect uniform decomposition data across ecosystems. Methods in Ecology and Evolution 4, 1070-1075.
For research collaborations where we collect depersonalized data regarding your crops and management practices, prices are as listed. For services where no data is retained by UVic for research purposes, prices increase by 50%.
I and my students use quantitative analyses of food and wine production systems to reveal linkages between ecological and social sustainability, “quality”, and the primacy of place … “Ecogastronomy”
Dr. John Volpe