DISREGARD my prior comment about the embodied energy table on page 404
of Loomis and Connor's Crop Ecology.
There was a question about why the embodied energy of paraquat and
glyphosate is much higher than that of ammonia-derived fertilizer.
According to Loomis (personal communication, May 2000)
"herbicides are endproducts of long synthesis chains whereas NH3
production is via a very short and rather efficient one"
-- Loren Muldowney loscott@envsci.rutgers.eduI initially said "Cancel that last thought......" but the list rejects messages which begins with "cancel" so it didn't get through. Sorry for anyone's being misled.
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