The source of phosphorus for Poly-Nitrogen is 100% water-soluble pyrophosphoric acid. Poly-Nitrogen increase Flowering at least 30%. The phosphoric form of Poly-Nitrogen does not make residues in soil like other phosphorus compounds. Poly-Nitrogen is very easy to pass through the leaf in applications. Poly-Nitrogen is an ideal liquid phosphorus fertilizer that can be used before flowering of plants. It makes the flowers are healthier, and the pollen becomes perfect.