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ARS Home » Southeast Area » Auburn, Alabama » Soil Dynamics Research » Research » Publications at this Location » Publication #367981
Research Project: Conservation Systems to Improve Production Efficiency, Reduce Risk, and Promote Sustainability

Location: Soil Dynamics Research

Title: Tillage systems and seeding rate effects on the performance of brassica carinata

Author
item IBOYI, JOSEPH - University Of Florida
item MULVANEY, MICHAEL - University Of Florida
item Balkcom, Kipling
item SEEPAUL, RAMDEO - University Of Florida
item LEON, RAMON - North Carolina State University
item DEVKOTA, PRATAP - University Of Florida
item SMALL, IAN - University Of Florida
item GEORGE, S - University Of Florida
item WRIGHT, DAVID - University Of Florida

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 9/3/2019
Publication Date: 11/11/2019
Citation: Iboyi, J., Mulvaney, M.J., Balkcom, K.S., Seepaul, R., Leon, R.G., Devkota, P., Small, I.M., George, S., Wright, D. 2019. Tillage systems and seeding rate effects on the performance of brassica carinata[abstract]. ASA-CSSA-SSSA Annual Meeting. CD ROM.

Interpretive Summary:

Technical Abstract: Brassica carinata, an alternative non-food oilseed crop, is used to produce aviation biofuels due to its high oil content and favorable fatty acid profile. Its production in the Southeastern United States is relatively new and information on agronomic management practices to optimize growth and yield is limited. Since different land preparation methods may affect the optimal seeding rate for this small-seeded crop, a study was conducted to evaluate the effect of tillage systems (conventional, no-till, broadcast, and ripper-roller) and seeding rates (1, 6, 10 and 15 kg/ha) on the performance of Brassica carinata. A randomized complete block design with a strip-plot restriction on randomization with four replications was implemented in Shorter and Headland, AL, and Jay and Quincy, FL, for six site-years during the 2017-18 and 2018-19 growing seasons. Results indicate that the 6 kg seed/ha rate was optimal at all site years regardless of tillage systems. The highest seed yields of 1867 and 1085 kg/ha were observed with conventional tillage systems in 2018 and 2019 respectively. There was no tillage x seed rate interactions on seed yield during any site-year. Penetrometer data collected after planting indicate that conventional tillage and the ripper-roller tillage systems had the least soil compaction, which may facilitate crop stand establishment.