What are the three major types of organic fertilizer?

A. green manure, nitrate spray, and animal manure
B. sewage sludge, compost, and green manure
C. compost, liquid manure, and nitrate spray
D. animal manure, compost, and green manure
E. liquid manure, sewage sludge, and animal manure


Answer: D

Environmental & Atmospheric Sciences

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