Effect of Soil Additives on Plant Growth

2010 Fairfax County Regional Science and Engineering Fair

The abstract below was written by the student. The Northern Virginia Soil and Water Conservation District made no editorial changes.

Effect of Soil Additives on Plant Growth

by Gabriel Ritter, Junior, Marshall High School


White Dutch Clovers were grown with different soil additives (fertilizer, Rhizobium, mycorrhizae, and Rhizobium/mycorrhizae) for 73 days to see the effects of each and if the environmental effects were worth the amount of growth induced. The plants were grown under the same conditions and were rotated when watered. When the 73 days passed, their stems were cut and they were dried to find the mass and overall growth. The plants grown with Rhizobium grew the most and the plants grown with mycorrhizae grew the least.

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