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Open AccessArticle

Mulch Treatment Effect on Weed Biomass and Yields of Organic Sweetpotato Cultivars

1
Department of Agricultural and Environmental Sciences, Tennessee State University, Nashville, TN 37209, USA
2
Department of Biological Sciences, Tennessee State University, Nashville, TN 37209, USA
*
Author to whom correspondence should be addressed.
Agronomy 2019, 9(4), 190; https://doi.org/10.3390/agronomy9040190
Received: 26 February 2019 / Revised: 4 April 2019 / Accepted: 9 April 2019 / Published: 13 April 2019
(This article belongs to the Special Issue Weed Management & New Approaches)
Weeds are a challenge, particularly in organic agriculture, due to restrictions on the application of synthetic herbicides and chemicals. A preliminary cultivar evaluation trial of organic sweetpotato was conducted in 2015 at Tennessee State University certified organic farm. Three mulches: wheat straw, pine needle, and black plastic mulch, along with a control (no mulch), were evaluated for their weed management abilities in a sweetpotato field. Four cultivars of sweetpotato were planted in 0.91 m wide mulch beds with 0.3 m row spacing anddrip irrigated with four replications. Data was collected during the growing season on the dry weight of weeds that emerged in a quadrat and yield components at harvest. Results of two-way ANOVA revealed that mulch treatments affected the weed biomass, weed density, and cull yields. Though the use of mulches had no significant effect on other yield components of sweetpotato in this study; it was beneficial for weed management. View Full-Text
Keywords: weed control; yield; Ipomoea batatas; cultivars; black plastic; mulch weed control; yield; Ipomoea batatas; cultivars; black plastic; mulch
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Nwosisi, S.; Nandwani, D.; Hui, D. Mulch Treatment Effect on Weed Biomass and Yields of Organic Sweetpotato Cultivars. Agronomy 2019, 9, 190.

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