Discover how the diet of earthworms affects their growth, reproduction, and the quality of the soil they process.
[E]
Determine the effect of earthworm density on decomposition or reduction of surface residues.
[E]
Determining the Longevity of Insecticide in Different Soil Types
[E]
The effect of Microarthropods on Soil Productivity
[E]
What Are the Effects of Soil Sterilization on Pea Plant Growth?
[E]
Do plants grow faster or slower in soil without microorganisms?
[E]
[P]
Soil & Hydroponics Science Fair Projects and Experiments