Suståne® 8-4-4 Fertility Trial, Vinca
(Catharanthus roseus ‘Pacifica XP Blush’)

PAT2H Horticultural Consulting Services, Rydal, Georgia, 20098 4 4 vinca trial

 

More than 25% of growers surveyed in 2007 reported managing fertility as the biggest challenge in organic production of ornamental crops, second only to pest management (Burnett and Stack, 2009)1. Therefore, Suståne® 8-4-4, an all natural fertilizer made from aerobically composted turkey litter was evaluated for use on ‘Pacifica XP Blush’ vinca. The trial compared Suståne 8-4-4 (45 day) to two industry-leading control release fertilizers, a 13-13-13(T70) and a 14-14-14(3-4 mo.). Each fertilizer was incorporated at a rate of 0.85 pounds of nitrogen per cubic yard. The potting medium was a 50:40:10 mix (by volume) of pine bark, peat and perlite.

 

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PAT2H Horticultural Consulting Services, Rydal, Georgia, 2008
8 4 4 vinca trial

Due to increased environmental awareness and escalating costs of quality control release fertilizers greenhouse production is in need of alternative nutrient sources, preferably derived from sustainable resources. Therefore, Suståne® 8-4-4, an all natural fertilizer made from aerobically composted turkey litter was evaluated for use on ‘Coral White’ vinca. The trial compared Suståne 8-4-4(45 day) to two industry-leading control release fertilizers, a 13-13-13(T70) and a 14-14-14(3-4 mo.). Each fertilizer was incorporated at a rate of 0.85 pounds of nitrogen per cubic yard. The potting medium was a 50:40:10 mix (by volume) of pine bark, peat and perlite.

 

 

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PAT2H Horticultural Consulting Services, Rydal, Georgia, 2008
research nursery marigold2

Suståne 8-4-4 was evaluated for use on "Inca II Orange" marigold. The trial compared Suståne 8-4-4 (45 day) to two industry-leading control release fertilizers, a 13-13-13 (T70) and a 14-14-14 (3-4 mo). Each fertilizer was incorporated at a rate of 0.85 lbs of nitrogen per cubic yard. The potting medium was a 50:40:10 mix (by volume) of pine bark, peat, and perlite.

 

 

 

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PAT2H Horticultural Consulting Services-Rydal, Georgia, 2009

8 4 4 rudbeckia trial 2009 Timbercrest

More than 25% of growers surveyed in 2007 reported managing fertility as the biggest challenge in organic production of ornamental crops, second only to pest management (Burnett and Stack, 2009)1. Therefore, Suståne® 8-4-4, an all natural fertilizer made from aerobically composted turkey litter was evaluated for use on Rudbeckia Goldsturm. The trial followed plant performance over 135 days and compared Suståne 8-4-4 (45 day) to two industry-leading controlled release fertilizers, a 13-13-13 (T70) and a 14-14-14 (3-4 mo.). Each fertilizer was incorporated at a rate of 0.85 pounds of nitrogen per cubic yard; at 55 days after planting a top dress application equivalent to 0.425 pounds of nitrogen per cubic yard of 8-4-4 was applied to supplement the nutrient source. The potting medium was a 50:40:10 mix (by volume) of pine bark, peat and perlite.

 

 

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PAT2H Horticultural Consulting Services, Ryda, Georgia, 2009
Begonia trial

Suståne 8-4-4 was evaluated for use on "Cocktail Whiskey" begonias. The trial compared Suståne 8-4-4 (45 day) to two industry-leading control release fertilizers, a 13-13-13 (T70) and a 14-14-14 (3-4 mo). Each fertilizer was incorporated at a rate of 0.85 lbs of nitrogen per cubic yard. The potting medium was a 50:40:10 mix (by volume) of pine bark, peat, and perlite.

 

 

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Trial Performed at The Ohio State University, 2010 ▪ Claudio Pasian, Ph.D.
OSU Geraniums Par 4 vs. 8 4 4 2010

Trial Summary: The results suggest a grower can produce a more vigorous geranium (nearly double shoot dry weight) with no difference in plant quality, flower number, or relative chlorophyll content (SPAD) using 15% less nitrogen when geraniums are fertilized with Suståne 8‐4‐4 compared to Par 4 9‐3‐7.

 

 

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Kim Williams, Kansas State University, 2012
Poinsettia Trial KSU

Compare performance of Sustane fertilizers to two conventional standard fertilizers for poinsettia
production, including combination Sustane plus liquid fertility programs. The study allows evaluation of the
slow‐release organic fertilizers on a high fertility crop with a 100‐day production cycle. Comparative nutrient
response curves are provided.

 

 

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