In this activity, students observe the colour inside the root nodules of clover (or other legume) to see if they are fixing nitrogen.
Nitrogen is the most abundant element in our planet’s atmosphere. Approximately 78% of the atmosphere is made up of nitrogen gas (N2
Clover grows well in New Zealand pasture and has long been used to get nitrogen into the soil. It was introduced in the 1800s from England...
See our newsletters here.