Effect of nitrogen form ratio on pansy growth and nutrition and the palatability to white-tailed deer

Pansies are one of the most popular annual bedding plants in the United States. Growth and uptake of essential nutrients as influenced by N-form ratio was evaluated in pansy as well as what role pansy nutrition plays in the protection of pansy against feeding damage by white-tailed deer provided by...

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Bibliographic Details
Published in:Journal of plant nutrition 1999-01, Vol.22 (12), p.1807-1814
Main Authors: Harris, C.E, Simonne, E.H, Eakes, D.J
Format: Article
Language:English
Subjects:
aluminum
ammonium compounds
Biological and medical sciences
boron
browsing
calcium
cations
copper
defoliation
Fundamental and applied biological sciences. Psychology
growth
herbivores
iron
magnesium
manganese
molybdenum
nitrates
nitrogen
nitrogen content
nutrient content
nutrient solutions
nutrient sources
nutrient uptake
nutritional status
Odocoileus virginianus
palatability
phosphorus
Phytopathology. Animal pests. Plant and forest protection
potassium
sodium
Vertebrates
Viola wittrockiana
zinc
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Summary:Pansies are one of the most popular annual bedding plants in the United States. Growth and uptake of essential nutrients as influenced by N-form ratio was evaluated in pansy as well as what role pansy nutrition plays in the protection of pansy against feeding damage by white-tailed deer provided by selected repellents. Plants were grown under three N-form ratios: 100:0,50:50, and 0:100 NO3:NH4. Dry weight was highest for pansy treated with 100:0 and lowest for plants treated with 0:100 NO3:NH4 Mean quality ratings were 4.07 for pansies grown with 100:0, 1.80 for pansies grown with 50:50, and 0.78 for pansies grown with 0:100. Potassium (K), magnesium (Mg), and manganese (Mn) content was lower in plants treated with 0:100 than in those treated with 100:0. Ammonium may have competed with these cations for uptake. Boron (B), copper (Cu), molybdenum (Mo), and aluiminum (Al) content was highest in plants treated with N-NH4. There was no significant difference shown in nutrient levels caused by repellent treatments. Feeding damage was shown to be affected by N-form ratio only on Day 3 of the study. Of the three repellent treatments [Deer and Rabbit Repellent (Thiram), Deer Away putrescent egg spray, and no spray], Thiram provided the greatest protection to pansies over the study period.
ISSN:0190-4167
1532-4087
DOI:10.1080/01904169909365757