تأثير التسميد الفوسفاتي النتروجيني على نمو و إنتاج الأزهار في نباتات الورد المقزم rosa spp.

الملخص EN

This study was conducted to study the effect of seven treatments of super phosphate (P2O5 46%) and urea (N 46%)fertilizers (0, 1 or 2 g super phosphate and 1 or 2 g urea and 1 gm super phosphate + 1 g urea and 2 gm super phosphate + 2 g Urea /pot) on growth and flowering of dwarf roses.

Fertilization with super phosphate and urea at 2 g each/pot increased significantly the number of internodes, leaf area, number of flowers and petals.

The results showed the importance of phosphorus and nitrogen fertilization to improve vegetative growth and flower production in dwarf roses.