Keeping Weeds in check with less herbicide.(Site-specific weed management) From: Agricultural Research | Date: August 1, 2006| Author: McGinnis, Laura | COPYRIGHT 2006 U.S. Government Printing Office. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

How do you kill weeds in a field?

That depends. Weed patches vary in size, shape, and composition and often require different treatments. And herbicide effectiveness varies with soil type.

Nevertheless, many farmers apply herbicide uniformly. This can lead to overapplication, causing leaching, carryover, and unnecessary expense. Fortunately, methods exist to control and reduce the application rate, say scientists in the ARS Water Management Research Unit at F...

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