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Tagged soil health

Boosting the chemistry of soil: A data analysis unit
unit 3 lessons

Boosting the chemistry of soil: A data analysis unit

Which soil or nutrient inputs provide a return on investment? What data can help you find out? This case study helps students see how soil or nutrient inputs affect soil chemistry, the importance of controlling variables, and how to analyze yield data to determine if an agriculture treatment…
Healthy soils
unit 1 lesson

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…
Nitrogen fixation and legumes: say what?
unit 2 lessons

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…
Soil health and microbes
unit 4 lessons

Soil health and microbes

What do we need to know about soil to determine its productivity? How can we be better stewards of soil health? Soil is an ecosystem, full of both living organisms and nonliving factors. These factors interact within the ecosystem to support one another. Find out what methods are used by soil scientists and…
Soil health w/ microbes (TL Version)
unit 2 lessons

Soil health w/ microbes (TL Version)

What do we need to know about soil to determine its productivity? How can we be better stewards of soil health? Soil is an ecosystem, full of both living organisms and nonliving factors. These factors interact within the ecosystem to support one another. Find out what methods are used by soil scientists and…
Soil health w/o microbes (TL version)
unit 2 lessons

Soil health w/o microbes (TL version)

What do we need to know about soil to determine its productivity? How can we be better stewards of soil health? Soil is an ecosystem, full of both living organisms and nonliving factors. These factors interact within the ecosystem to support one another. Find out what methods are used by soil scientists and…
Testing Soil Erosion
student research project

Testing Soil Erosion

What combination of conservation practices best protects soil? Four “test plots” were created in aluminum trays to figure it out. The first “test plot” was plain soil: a conventionally tilled field of bare dirt. The second “test plot” was plain soil…