The nutrients in guano different from many manufacturers without adding chemicals. Raw materials are taken from seabird guano mines which have been fermented and processed naturally for hundreds of years. High Guano Phosphate is rich in phosphate. Excellent for producing vigorous flowers, fruits and vegetables, as well as strong and resilient root growth. Composition P2O5 = 15 - 18 % Form : Granule Granule Size : 2 - 5 mm Color : Light Brown to Dark Brown Packing : PP PE 10 Kg/ 20 Kg/ 25 Kg/ 50 Kg Jumbo Bag 1000 Kg/ 1250 Kg