In the high fertilizer treatments, calcium nitrate (Ca(NO3)2) as a source of nitrogen and calcium, was applied at a rate of 1.4 g N/pot and 1.4 g Ca/pot at 14 days after transplanting (DAT). N-P-K fertilizer (15-15-15) at rates of 0.65 g N/pot, 1.84 g P/pot and 3.37 g K/pot were applied at 21 DAT, and N-P-K fertilizer (13-13-21) at rates of 0.65 g N/pot, 1.84 g P/pot and 3.37 g K/pot were applied at 40 DAT. In the low fertilizer treatments, half these amounts of fertilizers were applied.