Effect of soil type and fertilization treatments on growth and chemical composition of some ornamental shrubs 1-cestrum aurantiacum, lindley
2009
El-Mahrouk, E.M. | Kandeel, Y.M. | Hegazi, M.A. | Nasr, M.N. | Adam, A.I.
This work was carried out at Antoniadis Garden, Horticultural Research Institute, Alexandria, Ministry of Agriculture, Alexandria, Egypt. during the two successive seasons of 2005/2006 and 2006/2007 to study the effect of some fertilization treatments on Cestrum aurantiacum transplants grown in pots contain sandy, clay and sandy clay (1:1 v/v) soils. The used fertilization treatments were control (without fertilization), a ful1 dose of NPK 1/2 dose of NPK + active dry yeast, 1/2 dose NPK + compost and compost + active dry yeast. The best results for all the studied parameters as plant height, stem diameter, leaf area, number of branches per plant, fresh and dry weight of leaves and shoots and N, P and K% were obtained from the treatment of 1/2 NPK + compost grown in clay or sandy clay soil. On the other hand, the significant highest chlorophyll a was obtained from plants grown in clay or sand+clay (1:1) soils and fertilized by 1/2 NPK+ active dry yeast in the first season and in the second one from plants grown in clay soil and received full dose of NPK, while the highest significant value of chlorophyll (b) was obtained from plants grown in clay soil and fertilized by 1/2 NPK+ compost in both seasons, but the highest significant total carbohydrates content was resulted from plants grown in sand+ clay (1:1) soil and received 1/2 NPK + compost in the first season and those grown in clay soil and received NPK full dose in the second one. However, the best results for root ffresh and dry weights were obtained from the treatment of NPK full dose grown in clay or sandy clay soil.
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