1. The concentration of nitrate-nitrogen in plant tissue of forage samples such as barley or oat is generally highest during which part of the day.
mid-day
late afternoon
early evening
early in the day (mornings)

2. Which part of a plant sample should be selected for testing when a producer brings a dry hay sample into the office for a "Nitrate QuikTest For Forages"?
approximately 6 small leaves
the lowest 1-2 inch segment of 3-4 stems of the plant material
any portion of the plant material
approximately 3 flag leaves

3. The materials and reagents used in the "Nitrate QuikTest For Forages" are not harmful and require little or no pre-cautionary behavior when handling:
True
False

4. Presence of potentially high or elevated concentrations of nitrate-nitrogen are indicated by development of what color when use the "Nitrate QuikTest For Forages"?
absence of color
deep green color development in reagent/tissue mixture
dark brown
dark blue or purplish blue

Score =

Correct answers: