A new study shows more benefits of pelletzing.
In a study from the University of Delaware that examined estrogen concentrations runoff from agricultural fields fertilized with chicken manure found that it is as much about the application of the manure as it is about the measurement of the types of estrogen.
It measured and compared the amounts of both toxic, free forms of estrogen hormones and less toxic species found in runoff. Corn was planted as a cover crop and chicken manure was applied in either a pelletized form or a raw litter form. Reduced tillage and no tillage treatments were also employed. Samples of surface runoff were collected after 10 rain storms during the 2008 summer growing season from April through July.
Sudarshan Dutta, the author of the study, found that the amounts of estrogen were lower in plots fertilized with pelletized manure and plots that received no-tillage treatments.
Here are two good resources for pelletized chicken manure:
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