Curriculum tagged soil health

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Curriculum

Healthy Soils

What makes soil healthy? What methods might farmers use to maintain healthy soil? “Soil” doesn’t just mean “dirt.” It is a mixture of minerals like rocks and clay, organic material like dead leaves, living organisms like worms, microbes, and insects, and even air and water. There is…

Curriculum

Nitrogen Fixation and Legumes: Say What?

How do legumes fix nitrogen? If the atmosphere is about 80% Nitrogen (N2), but plants cannot use that form, how do they get nitrogen? In this unit, students plant and care for soybeans under one of five different nitrogen/microbe…

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