Search Results       Your search for [subject]Guano, Philippine -- Plant-food constituents returned 1 record.           Nature and availability of the plant-food constituents of Philippine guano. by Tirona, Mariano; Subject: Guano, Philippine -- Plant-food constituents; Plant-food constituents -- Guano; Guano, Philippine -- Nitrogen, phosphorus content -- Philippines.          Add to Book Cart   |    Digital Copy Available Relevance: 42.56%