7
Chempak ® Low Nitrogen Feed - Formula 8 is useful for mature growth. It is a fully soluble, low-nitrogen plant food. The formula is completely soluble, which means they begin working immediately. All Chempak Soluble Plant Foods contain seven essential trace elements. This is far more than the average soluble fertilizer. These trace elements are absolutely necessary for plant growth. Their absence can result in serious problems. (N:P:K - 12.5:25:25)