Carl Rosen, Extension Soil Scientist - Department of Soil, Water and Climate, University of Minnesota Nov. 27, 1996
Sustane 4-6-4 organic fertilizer applied at 1.88 tons* per acre produced garlic yields comparable or better than U of M composted cow manure applied at 32 tons per acre. Sustane 4-6-4 also produced garlic yields comparable or better than the inorganic fertilizer treatment.
Driscoll Strawberry Associates, Inc., Watsonville, CA, 1994
Natural Organic, Natural Based and Synthetic Compared at Equal Nitrogen Application Rate Levels Per Acre
Pat2h Horticultural Consulting, Rydal, Georgia, 2010
Suståne was tested in conjunction and side by side to liquid fertilizers on tomato plants in 4" pots
M. L. Agnew and S. M. Berkenbosch, Iowa State University, 1992
The purpose of this study was to compare nine natural organic fertilizers to urea.
Treatments included BioTurf 10-4-4, Sustane medium grade 5-2-4, Sustane fine grade 5-2-4, ISU experimental (10% N), Milorganite 6-2-0, Natures Preference 5-3-5, Ringer 10-2-6, Ringer 6-1-3, Howe 5-2-5 (added in 1990), Urea 46-0-0, and a control. All fertilizers were applied at 1 lb N/1000 ft2 on May 15, June 15, August 15, and September 15, 1989. This study was replicated three times in a randomized complete-block design. Individual plot dimensions are 5 ft by 10 ft.
Pat2h Horticultural Consulting, Rydal, Georgia, 2010
The objective of the trial was to evaluate efficacy of various organic fertilizers on germination rate and initial plant growth (first 4weeks) of common vegetable plant species in a Georgia topsoil. The plant species tested were lettuce, peas, radish and spinach. Twenty seeds of each species were sown along a 21‐inch long furrow. The fertilizers used were Suståne 4‐6‐4 organic, Scotts Miracle Grow 7‐1‐2 “Organic Choice”, Espoma 4‐3‐3 Biotone Starter Plus and an experimental vegetable seed starter containing Suståne. Each fertilizer was applied as broadcast application with the exception of the experimental seed starter, which was applied in a band directly to the seeded furrow. Adequate soil moisture was maintained daily, as needed, by hand watering.
Athens, Georgia, 2002
Suståne 4-6-4 was tested on Tomatoes for plant response. A photo was taken at 4 weeks.
Maplestar Farm LLC, Auburn Township, Ohio, Jake Trethewey, Owner, Maplestar Farm LLC, Trial Summary Prepared by Jon Sammons, PhD, Director of Research, Suståne Natural Fertilizer, Inc.
During the summer of 2012, an on-farm trial was performed at Maplestar farm located in Geauga County, Auburn Township, Ohio. The purpose of the trial was to evaluate the use of Suståne Natural Fertilizers to supply nutrients for organic managed sweet corn. Suståne was compared to a commercially available Composted Chicken Manure. The results showed a 45% yield increase with Suståne, fertilized sweet corn compared to the Composted Chicken Manure treatment, which corresponds to a $1,416.00 increase in gross profit per acre.
R.W. Nicola and P. Burlakoti, University of Guelph - Ridgetown Campus, Ridgetown ON, USA
A lack of amendments that can effectively serve as crop nutrients or pest controls and still be considered organic. Compost is a recognized organic input, and a recent development is the use of compost tea in fertility and biocontrol applications. Aerobic compost tea (ACT) is produced by aerating compost and water and allowing microbial activity to increase over a few days. An investigation into the biocontrol and fertility efficacy of different ACT formulations, as well as ACT crop application methods was completed.
Neil Mattson, Department of Horticulture, Cornell University, 2013
Different fertilizers, both inorganic and organic, were tested on basil and tomato plants for plant growth responses.
