Selecting Compost Materials

• Low C : N

  • Alfalfa hay 18:1
  • Grass clippings 19:1
  • Rotted manure 20:1
  • Oak leaves 25:1
  • Vegetables 26:1

• High C : N

  • Leaves 50:1
  • Corn stalks 60:1
  • Straw 80:1
  • Pine Needles 90:1
  • Sawdust 300:1

Some C : N ratios

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