Which of the following is true of organic farming as certified in Europe, the USA and many other countries?
A) Organic farms can use only animal manure to supply nutrients and build soil organic matter.
B) Improvement of soil quality is an official goal of organic farming.
C) The burning of all plant residues is encouraged in organic farming.
D) Organic farmers are allowed to use only organic chemicals (those containing carbon).
E) Organic farmers can use only compost made form plant materials to supply nutrients and build soil organic matter.
Question 2
To enable the most consistent and appropriate interpretations, all soil samples submitted to a particular soil test lab should be taken from the same soil depth, regardless of differences in the type of tillage used or plants grown.
Indicate whether the statement is true or false
Water-soluble organic molecules.
Non-Carbon Organic Molecules
The Oase I mandible, earliest modern human in Europe.
Particles measured, 1970 - 2008 and Trend in Organic Compound 1990 - 2007
Chemical, Biochemical, and Organic Sedimentary Rocks