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Evaluating the Impact of Starter Fertilizer on Winter Canola Grown in Oklahoma
Joint Authors
Abit, M. Joy M.
Weathers, Katlynn
Arnall, Daryl B.
Source
International Journal of Agronomy
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-06
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Increased canola production costs and acres have driven Oklahoma (OK) farmers to ask more questions about their nutrient management recommendations in their production system.
A study was conducted in 2011–2013 at Lahoma and Perkins, OK, to evaluate the effect of applying diammonium phosphate (DAP, 18-20-0:N-P-K) directly with seed on crop stand, grain yield, and grain quality of canola.
In addition, the impact of proportion nitrogen (N) applied as a preplant and topdress was also evaluated.
Diammonium phosphate was banded with the seed at planting at 0, 17, 34, 51, 67, and 84 kg DAP ha−1.
Remaining N was applied as urea (46-0-0) either as split (40% preplant and 60% topdress) application or as topdress only.
Stand count reduction of up to 71% was observed with seed-placed DAP.
However, loss of stand did not impair grain yield due to canola’s ability to compensate for open areas via branching.
Application of DAP of up to 84 kg ha−1 with seed may be possible; however, soil and climatic conditions should be considered when deciding how much DAP will be placed with seed.
Moreover, when climatic conditions limit early season growth and favor late spring growth, applying all N at topdress (no preplant) tended to provide greater canola grain yield.
American Psychological Association (APA)
Abit, M. Joy M.& Weathers, Katlynn& Arnall, Daryl B.. 2016. Evaluating the Impact of Starter Fertilizer on Winter Canola Grown in Oklahoma. International Journal of Agronomy،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1104914
Modern Language Association (MLA)
Abit, M. Joy M.…[et al.]. Evaluating the Impact of Starter Fertilizer on Winter Canola Grown in Oklahoma. International Journal of Agronomy No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1104914
American Medical Association (AMA)
Abit, M. Joy M.& Weathers, Katlynn& Arnall, Daryl B.. Evaluating the Impact of Starter Fertilizer on Winter Canola Grown in Oklahoma. International Journal of Agronomy. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1104914
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1104914