New York Science Grade 6

Unit 3: Biodiversity

Legumes Fix Nitrogen

Project Type: Technology
Research how legumes “fix” nitrogen and why crop rotation keeps farm land more productive.

Task:
Design a flow chart about nitrogen fixation to include:

  • Nitrogen fixing legumes and their bacteria
  • Atmospheric nitrogen
  • Fixed nitrogen

Write 1-2 page(s) on why crop rotation keeps farm land more productive

Resources:
The following are site to help understand the nitrogen cycle and research crop rotation. Students may use these and or any other site they find.

Nitrogen Cycle
http://en.wikipedia.org/wiki/Nitrogen_cycle

Nitrogen Fixation
http://en.wikipedia.org/wiki/Nitrogen_fixation

Encyclopedia
Type in “nitrogen cycle” or “crop rotation"

http://www.encyclopedia.com

Crop Rotation
http://en.wikipedia.org/wiki/Crop_rotation

Crop Rotations for Increased Productivity
http://www.ext.nodak.edu/extpubs/plantsci/crops/eb48-1.htm

USDA
Type in “crop rotation"
http://www.usda.gov/wps/portal/usdahome

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