University of Illinois Urbana-Champaign

Management and Interference Potential of Common Waterhemp (Amaranthus Rudis) in Soybean (Glycine Max)

Hager, Aaron Gregory

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Description

Title
Management and Interference Potential of Common Waterhemp (Amaranthus Rudis) in Soybean (Glycine Max)
Author(s)
Hager, Aaron Gregory
Issue Date
2001
Doctoral Committee Chair(s)
Wax, Loyd M.
Department of Study
Agronomy
Discipline
Agronomy
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Agriculture, Agronomy
Language
eng
Abstract
Field experiments were conducted during 1996, 1997, and 1998 to determine the common waterhemp interference period soybean could tolerate without reducing seed yield. Removal of common waterhemp interference 2 weeks after soybean unifoliolate expansion resulted in soybean seed yield equivalent to a season-long weed free control, but delaying common waterhemp removal longer than 2 weeks resulted in decreased soybean seed yield. Full season common waterhemp interference reduced soybean seed yield 31%. These results suggest soybean producers should implement common waterhemp management strategies prior to 4 weeks after soybean unifoliolate leaf expansion to reduce potential loss of soybean seed yield.
Graduation Semester
2001
Type of Resource
text
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http://hdl.handle.net/2142/87662

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Dissertations and Theses - Agronomy