Effect of foliar fertilizers on growth, yield and active ingredients of safflower plantunder sandy soil conditions

摘要

The present work aimed to improve safflower plant productivity of petal, seed and fixed oil yields by using complete fertilizers as foliar spray. The experiment was conducted during two seasons of 2009/2010 and 2010/2011 with RCBD design for 3 replications and 5 treatments namely: 1) untreated plants (control) 2) 2000 ppm kristalon 3) 4000 ppm kristalon 4) 2000 ppm Irral 5) 4000 ppm Irral. Besides studying the effects of these treatments on the growth, petals and seed yield per plant, carthamin content in dry petals and fixed oil content in seeds and the elements (N, P, K, Zn, Mn and Fe) in leaves. The main results from this work indicated that, plants sprayed with the high level of 4000 ppm Irral followed by that of 2000 ppm Irral gave the highest values of growth characters, petal and seed yields per plant, carthamin content in dry petals and fixed oil content in seeds and the macro elements (N, P and K content) as well as the micro elements (Zn, Mn and Fe ppm) in leaves compared with control or the other treatments