Influence of nitrogen and calcium carbonate application rates on the minerals content of summer savory (Satureja hortensis L.) leaves.

Summer savory (Satureja hortensis L.), a well known culinary herb and spice plant, is an important nutritional source of minerals. A field experiment was conducted to determine the effects of N (0 (control), 50, 100 and 150 Kgㆍha?¹) and CaCO₃ (0 (control), 5 and 10 tㆍha?¹) application rate on tissue mineral contents of S. hortensis cv. Saturn. The treatments were set up in a factorial arrangement based on the complete randomized block design with three replications. Results showed that nitrogen fertilization increased N, P and B contents of leaf tissues. The concentrations of K and Mg were affected by nitrogen levels, whereas Ca, Fe, Mn, Zn and Cu not affected. The CaCO₃ application significantly increased Ca and B contents, but resulted in decrease of P, Mg, Fe, Mn and Zn contents. Also, K concentration was affected by CaCO₃ application, whereas Zn not affected. The interaction between nitrogen and CaCO₃ treatments was significant only in N, K and B contents.

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