Instructions for Determining Density
Follow Master Forage Probe sampling instructions

1. Select a sampling site and using your Master Forage Probe, obtain a core sample of at least 6 inches (15 cm) and not greater than 10 inches (25 cm). Withdraw the probe and insert plunger into the hole. Measure and record the depth of the hole as the Core Depth. Enter the Core Depth in inches or cm into the calculator.

2. Weigh a plastic bag or bucket large enough to hold the entire contents of the probe and record weight (container weight). Empty the entire contents of the probe into the container, weigh and record (combined weight). Subtract the container weight from the combined weight to determine the Core Weight. Enter the Core Weight in grams into the calculator.

3. Determine the dry matter of the core sample using a Koster Tester, Microwave oven or Laboratory value. Enter the Dry Matter. Click Calculate to display the density.

4. Using the above information, your density will automatically be calculated in lbs./cu. ft. on an As Sampled and Dry Matter Basis.

5. If performing a multiple site evaluation, repeat the above steps for each site. The calculator will determine the individual density for up to three sites and compute the average.