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how many pounds of chemical fertilizers are used annually in the US?

2006-10-30 13:55:51 · 1 answers · asked by Mark D 1 in Environment

1 answers

if dry chemicals is the subject about half of what is needed

2006-11-02 23:43:13 · answer #1 · answered by Talking Hat 6 · 0⤊ 0⤋

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