Articles
Dahlia foliar nutrient sufficiency ranges and growth response to fertilizer concentrations
Article number
1273_33
Pages
243 – 250
Language
English
Abstract
Two dahlia (Dahlia × hybrida) cultivars were grown with one of five constant liquid fertilizer concentrations (75, 100, 200, 300, or 400 mg L‑1 N) using a 13N-0.86P-10.8K fertilizer.
The cultivars used were ‘Hypnotica Cherish Pink’ and ‘Goldalia Scarlet’. Tissue samples were collected and analyzed for foliar nutrient concentrations at two different times.
At each harvest date, plant height, plant diameter, and shoot dry mass were recorded.
Dahlias achieved maximum growth when grown with 100 to 300 mg L‑1 N, while 400 mg L‑1 N was detrimental.
Foliar nutrient sufficiency ranges were determined based on fertilizer concentrations resulting in maximum growth.
These results provide improved dahlia fertilization recommendations and foliar sufficiency ranges.
The cultivars used were ‘Hypnotica Cherish Pink’ and ‘Goldalia Scarlet’. Tissue samples were collected and analyzed for foliar nutrient concentrations at two different times.
At each harvest date, plant height, plant diameter, and shoot dry mass were recorded.
Dahlias achieved maximum growth when grown with 100 to 300 mg L‑1 N, while 400 mg L‑1 N was detrimental.
Foliar nutrient sufficiency ranges were determined based on fertilizer concentrations resulting in maximum growth.
These results provide improved dahlia fertilization recommendations and foliar sufficiency ranges.
Authors
J.B. Henry, I. McCall, P. Cockson, B.E. Whipker
Keywords
fertilizers, floriculture, nutrition, tissue analysis
Groups involved
- Division Greenhouse and Indoor Production Horticulture
- Working Group Hydroponics and Aquaponics
- Working Group Growing Media
- Working Group Substrate Analysis
- Commission Agroecology and Organic Farming Systems
- Division Vegetables, Roots and Tubers
- Working Group Crop Establishment, Seed and Transplant Technology
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