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Soil Your Undies!

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The Murraylands and Riverland Landscape Board invite you to bury your undies… to find out just how active your soil biology is.

Biology within the soil is responsible for consuming all kinds of organic materials, breaking them down as a part of the nutrient cycle. This simple experiment asks you to bury your undies to provide a tasty meal for the soil biology; the quicker the undies are consumed the more active your soil biology is. 

Burying your undies is an easy way to compare the biological activity in different soil types, at numerous locations on the farm, in various crop types, in garden beds, under a variety of watering regimes or even in different environments:

  1. To be eligible, you must conduct this experiment within the Murraylands and Riverland landscape region. View the region's map to confirm the eligible area.
  2. Once registered we will mail you your pair of 100% cotton undies along with your ‘Undies Instruction Kit’.
  3. Bury your pair of undies at two sites in your garden, farm or compost during National Science Week
  4. Fill in the data sheets on where you buried the two pairs of undies. These two sites can be used to compare your own soil health or your own soil experiment.
  5. Dig up your pair of undies the week of 4 October.
  6. Follow the undies instruction kit to bag and mail the undies back to us for weighing.
  7. We will return your soil results and provide information about improving soil health and function for enhanced sustainability.
  8. The entrant with the most active soil biology wins a gardening prize pack.

This project is linking with the national Soil Your Undies project run through University of New England and CottonInfo.

Soil Your Undies! is supported by the Murraylands and Riverland Landscape Board through funding from a National Science Week SA Community Grant, the Australian Government’s National Landcare Program and the landscape levies.