Influence of Soybean (Glycine max) Population and Herbicide Program on Palmer Amaranth (Amaranthus palmeri) Control, Soybean Yield, and Economic Return
Joint Authors
Jordan, David L.
Hoffner, Amy E.
Dunphy, E. James
Everman, Wesley J.
York, Alan C.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-19
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Palmer amaranth (Amaranthus palmeri S.
Wats) has become one of the most prominent and difficult weeds to control in soybean (Glycine max (L.) Merr.) in North Carolina.
A survey was conducted in North Carolina during fall 2010 to estimate the magnitude of this problem.
Palmer amaranth was present in 39% of 2,512 fields representing 0.24% of soybean ha in North Carolina.
In recent years, growers have reduced soybean seeding rates in an effort to decrease production costs associated with technology fees.
However, given the increase in prevalence of Palmer amaranth and the difficultly in controlling this weed due to herbicide resistance, growers may need to reconsider reductions in seeding rates.
Therefore, research was conducted during 2010 and 2011 to determine if Palmer amaranth control, soybean yield, and economic return were affected by soybean plant population, preemergence (PRE) and postemergence (POST) herbicides, and herbicide resistant traits (glufosinate-resistant and glyphosate-resistant cultivars).
Applying PRE or POST herbicides and increasing soybean population increased Palmer amaranth control, soybean yield, and economic return when compared with POST herbicides only or when lower soybean populations were present.
Efficacy of glufosinate and glyphosate did not vary in most instances, most likely because these herbicides were applied timely, and the frequency of glyphosate resistance did not exceed 10% in these fields.
American Psychological Association (APA)
Hoffner, Amy E.& Jordan, David L.& York, Alan C.& Dunphy, E. James& Everman, Wesley J.. 2012. Influence of Soybean (Glycine max) Population and Herbicide Program on Palmer Amaranth (Amaranthus palmeri) Control, Soybean Yield, and Economic Return. ISRN Agronomy،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-510471
Modern Language Association (MLA)
Hoffner, Amy E.…[et al.]. Influence of Soybean (Glycine max) Population and Herbicide Program on Palmer Amaranth (Amaranthus palmeri) Control, Soybean Yield, and Economic Return. ISRN Agronomy No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-510471
American Medical Association (AMA)
Hoffner, Amy E.& Jordan, David L.& York, Alan C.& Dunphy, E. James& Everman, Wesley J.. Influence of Soybean (Glycine max) Population and Herbicide Program on Palmer Amaranth (Amaranthus palmeri) Control, Soybean Yield, and Economic Return. ISRN Agronomy. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-510471
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510471