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Foliar Potassium Fertilizer Additives Affect Soybean Response and Weed Control with Glyphosate
Joint Authors
Kendig, John A.
Stevens, William E.
Motavalli, Peter P.
Nathan, Manjula
Dunn, David
Nelson, Kelly A.
Source
International Journal of Agronomy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-26
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Research in 2004 and 2005 determined the effects of foliar-applied K-fertilizer sources (0-0-62-0 (%N-%P2O5-%K2O-%S), 0-0-25-17, 3-18-18-0, and 5-0-20-13) and additive rates (2.2, 8.8, and 17.6 kg K ha−1) on glyphosate-resistant soybean response and weed control.
Field experiments were conducted at Novelty and Portageville with high soil test K and weed populations and at Malden with low soil test K and weed populations.
At Novelty, grain yield increased with fertilizer additives at 8.8 kg K ha−1 in a high-yield, weed-free environment in 2004, but fertilizer additives reduced yield up to 470 kg ha−1 in a low-yield year (2005) depending on the K source and rate.
At Portageville, K-fertilizer additives increased grain yield from 700 to 1160 kg ha−1 compared to diammonium sulfate, depending on the K source and rate.
At Malden, there was no yield response to K sources.
Differences in leaf tissue K (P=0.03), S (P=0.03), B (P=0.0001), and Cu (P=0.008) concentrations among treatments were detected 14 d after treatment at Novelty and Malden.
Tank mixtures of K-fertilizer additives with glyphosate may provide an option for foliar K applications.
American Psychological Association (APA)
Nelson, Kelly A.& Motavalli, Peter P.& Stevens, William E.& Kendig, John A.& Dunn, David& Nathan, Manjula. 2012. Foliar Potassium Fertilizer Additives Affect Soybean Response and Weed Control with Glyphosate. International Journal of Agronomy،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-473443
Modern Language Association (MLA)
Nelson, Kelly A.…[et al.]. Foliar Potassium Fertilizer Additives Affect Soybean Response and Weed Control with Glyphosate. International Journal of Agronomy No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-473443
American Medical Association (AMA)
Nelson, Kelly A.& Motavalli, Peter P.& Stevens, William E.& Kendig, John A.& Dunn, David& Nathan, Manjula. Foliar Potassium Fertilizer Additives Affect Soybean Response and Weed Control with Glyphosate. International Journal of Agronomy. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-473443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-473443