Platina — a plant growth regulator used to increase crop yields in various agricultural crops. The preparation contains L-tryptophan at a concentration of 50 g/l and is applied as a water solution. It is intended for use on vineyards, cherries, and cereal crops. The scope of application covers both fruit trees and cereal crops. The preparation is applied by spraying crops at a rate of 1.0 to 1.5 liters per hectare. To achieve maximum effect, three applications are recommended. Manufacturer Globachem nv — a Belgian company specializing in high-quality agricultural products. The preparation meets modern standards and is suitable for use in various climatic conditions.