Organic fertilizer comparison on kale (Brassica spp.) varietal growth and nutrient content
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Selecting supplemental N fertilizer for use on certified organic farms can be difficult and confusing. There are many options commercially available to farmers with similar N concentrations but widely different ingredients. Field experiments on three farms in Fort Collins, CO were conducted to evaluate the impact of a few commonly-used organic fertilizers on kale yield and nutrient concentrations. This study includes a fertilizer under development which is produced on-farm utilizing N-fixing cyanobacteria; this cyanobacterial bio-fertilizer may be a viable choice for farmers in the near future. ...