fertilizer potassium nitrate 1.powder and graunle 100% water soluble 2.dry and easy to use 3.excellent quality and reasonable fertilizer ... tubes, drugs, chemical reagents, catalysts, ceramic glazes, glass, fertilizer, and flowers, vegetables, fruit trees and other cash crops spraying ... (K2O) content---------≥46.0%Nitrogen (N ) content---------≥13.5% fertilizer potassium nitrate powder/granule 99%