PAR4® 100% Peruvian Seabird Guano is a highly sought-after nitrogen and phosphorus organic fertilizer. Sourced on desert islands off the coast of Peru, the guano is laid down by seabirds* feeding in the rich coastal waters of the Pacific. Due to the extremely dry conditions, little of the nutrients are leached from the guano, resulting in abundant organic nitrogen.
Prior to the development of synthetic nitrogen fixation, seabird guano was so valuable as a crop fertilizer, that wars were fought over the rights to harvest and sell the prized commodity. Peru now controls and regulates the collection of seabird guano, ensuring the conservation of the seabird colonies.
PAR4® 100% Peruvian Seabird Guano contains 12% nitrogen, primarily in the ammonium and urea forms, resulting in rapid and slow availability for a full season of nutrition. It also includes 11% phosphorus and 2% potassium. Since much of the nitrogen is available as ammonium, seabird guano can help stimulate fungal activity in the soil. As with all organic fertilizers, PAR4® 100% Peruvian Seabird Guano feeds the soil food web, providing a rich source of organic nutrients to support the microorganisms that thrive as they decompose the guano. Our natural powder can be easily and evenly dispersed, resulting in widespread distribution of nutrients, rather than some pelletized products which result in concentrated nutrients wherever the pellets fall on the soil.