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Mineral nutrition of ornamental plants: II - absorption of nutrients by carnation plants

Carnation plants (Dianthus caryophyllus L.) var. Evening Grown, White Sim, Yellow Sim and Dust were harvested periodically 15, 30, 57, 75 and 115 days - The plants were divided into stem, leaves and analyzes for N, P, K, Ca, Mg, S. The data obtained allowed for the following main conclusions : a) The initial rate of growth of the Carnation plant is rather slow until the 15 days, increasing in length and wheight up to 75 days old. The uptake of the macronutrients is small at the first 30 days, increasing after this period until the 75 days. c) A carnation plant at 115 days old presents 434 mg of N; 81 mg of P; 1026 mg of K; 348 mg of Ca; 90 mg of Mg and 56 mg of S.


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