White crystals with nitrate nitrogen ≥13.5% and K₂O ≥44.5% (13.5-0-44.5), to GB/T20784-2018, in 25 kg bags. It supplies fast-acting nitrogen and potassium together, is highly water-soluble and chloride-free, and is applied by drip irrigation, flushing or foliar spray to improve fruit quality and storability.