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- Strawberries in Florida:
- Second in harvested area in the U.S.
- More than 2,600 ha (6,500 A).
- Winter production.
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- Determine the effect of napropamide and oxyfluorfen on weed control on
strawberry under different mulch types.
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- Two field trials at the GCREC-UF in Bradenton, Florida.
- ‘Camarosa’ strawberry.
- Pressed beds covered with plastic mulch.
- Herbicides applied on bed tops and covered with mulch, one week before
transplanting.
- No fumigants applied.
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- Herbicides:
- Non-treated control.
- Napropamide: 4.50 kg·ha-1.
- Napropamide: 6.75 kg·ha-1.
- Napropamide: 9.00 kg·ha-1.
- Oxyfluorfen: 0.57 kg·ha-1.
- Napropamide + oxyfluorfen: 4.50 + 0.57 kg·ha-1.
- Films:
- Low density polyethylene mulch (LDP).
- Virtually impermeable film (VIF).
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- Treatments factorially arranged.
- Split-plot design with 5 replications.
- Factors:
- Herbicides: Main plots.
- Mulch types: Subplots.
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- Variables:
- Plant number at first harvest.
- Plant vigor at 6 and 12 WAT (%).
- Weed counts per species at 6, 10 and 16 WAT.
- Fruit number and weight: 17 and 21 harvests per trial.
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- Strawberry plant number: Covariable.
- Plant vigor: Transformed with arc sin-1.
- Weed counts: Kruskal-Wallis test.
- Yields: Data pooled; ANOVA at 5% significance.
- LSD at 5% level.
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