Suståne KNOWN WORLDWIDE AS... SIMPLY THE BEST... SOIL BUILDERS AND AMENDMENTS
Suståne is a line of fertilizers and soil builders that combines the many benefits of high quality compost with the performance and precision of a slow release fertilizer. Suståne is the world’s leading manufacturer-exporter of organic and natural base slow release nitrogen fertilizers for all green industries. Suståne’s products are designed for organic farms and gardens, turf and ornamental plants and native vegetative establishment. There are Suståne products available for all crop fertility, establishment, maintenance, reclamation and soil building programs. Suståne fertilizers are derived from aerobic, concentrated compost – rich in humus, dense in nutrients and biologically active.
Suståne Organic Fertilizer
Davis V.P. Claassen and M.P. Hogan, Soils and Biogeochemistry Section, University of California, Davis, 1998
Caltrans – California Department of Transportation, Sacramento, California, U.S.D.O.T. Federal Highway Administration
The objective of this study is to compare the N release rates from a wide variety of potential amendment sources, to check the incubation and leaching procedure for precision between duplicate experiments, and to compare release rates to those measured in a field situation.
Karl Guillard and Kelly L. Kopp, Department of Plant Science, University of Connecticut, Storrs, CT 1996-1999 
Late-season fertilization of lawns with N is a common practice in southern New England during late fall (October through November). Turf quality and rooting characteristics may benefit from this practice, but the potential for nitrate (NO3) leaching at this time may be higher than if N-based fertilizers are applied before October.
Dr. Brent Philbrook, Agri-Growth Research , 1989
Report Summary of Nursery Field Study and Greenhouse Study
Pesticide residues can wreak havoc on newly established crops for both conventional growers as well as farmers who are making the transition to organic production. The only current alternative to reducing plant injury from persistent herbicides is activated charcoal – applied to absorb various chemicals compounds in the soil.