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Chempak® High Nitrogen Feed - Formula 2 is a rapid growth plant food formula. It has higher nitrogen for spring feeding, as used by exhibition growers. This is especially beneficial at the start of the season for getting the leaves and stems of young plants off to a strong start. They are completely soluble, which means they begin working immediately. All Chempak Soluble Plant Foods contain seven essential trace elements. This is far more than regular fertilizer. (N:P:K - 25:15:15)