This item can only be shipped to schools, museums and science centers
This kit is designed to illustrate the relationships between bacteria, nitrogen fixation, nitrogen cycling and plant nutrient requirements. Your students will learn what farmers have known for some time-the role the bacteria play and how the plants benefit. Students plant grass seeds which they maintain on three different nutrient media and monitor relative growth over a 25-day study period. The results will be dramatic.Materials supplied for 24 students working in teams of three.