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Search results with tag "And synthetic substances"
The Allowed* Use of Commercial Fertilizers, Pesticides ...
www.ctahr.hawaii.eduThe Allowed* Use of Commercial Fertilizers, Pesticides, and Synthetic Substances on U.S. Farms Under the USDA ... is not usually the case. For example, organic farmers are required by law to use cultural practices such as cultivar selection, crop rotation, and physical barriers ... “synthetic” pesticides on certified organic farms. Both ...