Abstract
Interest in organic sweetpotato production in the United States has been growing as consumers and producers are becoming increasingly concerned about how their food is cultivated. Thus, there is a growing need for information on sweetpotato production and variety selection under an organic management production system. The objective of this study was to evaluate the effects of various mulches on yields—total and marketable—of fourteen sweetpotato varieties grown under organic management. Three types of mulch, wheat straw, pine needle, and black plastic, and a control (no mulch) were evaluated during the 2016 growing season. The wheat straw mulch yielded significantly higher yields than the black plastic and pine needle mulch treatments, though it was not significantly different from the control. The total and marketable yields of sweetpotato roots also varied significantly among the varieties, ranging from 39,719 kg·ha−1 for Beauregard to 4925 kg·ha−1 for O’Henry. There was a significant interaction between variety and mulch treatment on total but not marketable yield. More research is needed to ascertain the stability of the effects of varieties, mulch treatment, and their interactions on total and marketable yields and to elucidate other treatments and varieties with better potential to improve sweetpotato yields in organically managed production systems.
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Claims 8
Claim · model-written summary
Wheat straw mulch produced significantly higher yield than black plastic mulch.
- Taxon
- sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- wheat straw mulche0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- black plastice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“The wheat straw mulch yielded significantly higher yields than the black plastic and pine needle mulch treatments”
t0“sweetpotato”
Claim · model-written summary
Wheat straw mulch produced significantly higher yield than pine needle mulch.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- wheat straw mulche0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- pine needle mulch treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wheat straw mulch yielded significantly higher yields than the black plastic and pine needle mulch treatments”
t0“sweetpotato”
Claim · model-written summary
Wheat straw yield did not differ significantly from the no-mulch control.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- wheat straw mulche1
- Outcome
- yieldse1
- Direction
- not significantly differente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“though it was not significantly different from the control”
e1“The wheat straw mulch yielded significantly higher yields”
t0“sweetpotato”
Claim · model-written summary
Total root yield differed significantly by sweetpotato variety, from 39,719 kg·ha−1 for Beauregard to 4925 kg·ha−1 for O’Henry.
- Taxon
- sweetpotatoIpomoea batatase0
- Material
- Beauregarde0
- Outcome
- totale0
- Direction
- variede0
- Value
- 39,719 kg·ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total and marketable yields of sweetpotato roots also varied significantly among the varieties, ranging from 39,719 kg·ha−1 for Beauregard to 4925 kg·ha−1 for O’Henry.”
Claim · model-written summary
Marketable root yield differed significantly by sweetpotato variety.
- Taxon
- sweetpotatoIpomoea batatase0
- Material
- varietiese0
- Outcome
- marketable yields of sweetpotato rootse0
- Direction
- variede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total and marketable yields of sweetpotato roots also varied significantly among the varieties”
Claim · model-written summary
Variety and mulch had a significant interaction for total yield.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- mulch treatmente0
- Outcome
- totale0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant interaction between variety and mulch treatment on total but not marketable yield.”
t0“sweetpotato”
Claim · model-written summary
Variety and mulch had no significant interaction for marketable yield.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- mulch treatmente0
- Outcome
- marketable yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant interaction between variety and mulch treatment on total but not marketable yield.”
t0“sweetpotato”
Claim · model-written summary
The authors call for further research on stability of variety and mulch effects and improved organic sweetpotato yield.
- Taxon
- sweetpotatoIpomoea batatase0
- Outcome
- More research is needed to ascertain the stability of the effects of varieties, mulch treatment, and their interactions on total and marketable yields and to elucidate other treatments and varieties with better potential to improve sweetpotato yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More research is needed to ascertain the stability of the effects of varieties, mulch treatment, and their interactions on total and marketable yields and to elucidate other treatments and varieties with better potential to improve sweetpotato yields in organically managed production systems.”
The same questions in other papers
Triticum aestivum · yield · Ipomoea batatas (sweet potato)Positive and negative results
1 in the opposite direction
- no effect
organic · yield · Ipomoea batatas (sweet potato)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.