Fertilization method and nitrogen content of annual flowering plants

Uniform Nitrogen Content in the foliage is desirable for optimum growth of annual flowering plants (bedding plants). Two of many fertilization procedures suggested to maintain this uniform level, include the use of controlled release nitrogen fertilizers, and constant fertilization at each irrigation with a dilute fertilizer solution. Tests reported here, were to determine the ability of these procedures to maintain nitrogen uniformity during early growth under commercial conditions.