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Petunia Growth Response to Container Substrate Amended with Dewatered Aquaculture Effluent /

by Jason J. Danaher; Jeremy M. Pickens; Claude E. Boyd; Terrill R. Hanson; Jesse A. Chappell; Jeffrey L. Sibley; Graduate Research Assistant; Associate Professor and Extension Agent; Professor and Butler Cunningham Eminent Scholar; Bohmann Professor of Horticulture; Assistant Professor and Extension Agent; Department of Fisheries and Allied Aquaculture, Auburn University, 203 Swingle Hall, Auburn, AL 36849; Research Associate III; Department of Horticulture, Auburn University, 101 Funchess Hall, Auburn, AL 36849.
Material type: materialTypeLabelComputer fileSeries: HortTechnology.Publisher: American Society for Horticultural Science, 2013Description: Journal article.ISSN: 1943-7714.Online resources: Link to original article. In: HortTechnology (Vol.) 23. (No.) 1. 2013. (Pages.) 57-63.Summary: This experiment evaluated petunia (Petunia ×hybrida ‘Celebrity’) growth response to amending a commercial potting mix (F3B) with different amounts of dewatered aquaculture effluent (AE) and fertigating with a water-soluble, inorganic fertilizer or municipal water. The experiment was a completely randomized 2 × 5 factorial design with eight single-pot replications per treatment. At 39 days after planting (DAP), a significant (P ≤ 0.05) substrate and water interaction existed for petunia growth index (GI), bloom count (BC), fresh weight (FW), and dry weight (DW). The 100% F3B, 5% AE, and 10% AE substrates benefited with a significantly (P ≤ 0.05) greater BC, FW, and DW when fertigation was used; however, the water source had no effect on petunia BC, FW, or DW for levels ≥25% AE. Fertigating substrates amended with increasing levels of AE did not improve petunia growth. Conversely, when applying municipal water plant, FW and DW were the greatest using 25% AE.
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This experiment evaluated petunia (Petunia ×hybrida ‘Celebrity’) growth response to amending a commercial potting mix (F3B) with different amounts of dewatered aquaculture effluent (AE) and fertigating with a water-soluble, inorganic fertilizer or municipal water. The experiment was a completely randomized 2 × 5 factorial design with eight single-pot replications per treatment. At 39 days after planting (DAP), a significant (P ≤ 0.05) substrate and water interaction existed for petunia growth index (GI), bloom count (BC), fresh weight (FW), and dry weight (DW). The 100% F3B, 5% AE, and 10% AE substrates benefited with a significantly (P ≤ 0.05) greater BC, FW, and DW when fertigation was used; however, the water source had no effect on petunia BC, FW, or DW for levels ≥25% AE. Fertigating substrates amended with increasing levels of AE did not improve petunia growth. Conversely, when applying municipal water plant, FW and DW were the greatest using 25% AE.

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