Clover nodules

In this activity, students observe the colour inside the root nodules of clover (or other legume) to see if they are fixing nitrogen.

Dr Ross Monaghan from AgResearch at Invermay is concerned about nutrients from the soil affecting waterways and causing water pollution. This includes excessive levels of nitrogen...

In this activity, students observe the colour inside the root nodules of clover (or other legume) to see if they are fixing nitrogen.

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...