تأثير نظام الري و التسميد الكيمياوي في نمو فسائل نخيل الزهدي

الملخص EN

An experiment was conducted during 1/9/2006 until 1/11/2009 at Al–Rabi date palm station/ Zafaraniah/ Baghdad to study the effect of two irrigation systems (drip and furrow), four nitrogen levels (0, 72, 108, 144) gm N/offshoot and potassium (0, 50, 75, 100) gm K2O/offshoot on the growth of date palm offshoot.

The results indicated that the best growth in treatment under drip irrigation (144 gm N/offshoot /year + 100 gm K2O/offshoot /year) under the drip irrigation system.

This treatment was suprior in content of N, P and K in leaves, number of leaves and their tall.

The drip irrigation system led to significant increase content of N and P in leaflets, while do not effect on the K content in leaflets, number of leaves and their tall.

Addition of nitrogen and potassium fertilizers caused insignificant increases in N and K contents in leaflets, while this increase did not be significant for P pinnae content.

With 0-30 cm depth there was a significant increase in nitrogen content under drip irrigation in this layer, the addition nitrogen and potassium fertilizers caused a significant increases in nitrogen soil content, while this increase did not be significant for phosphorus soil content in the same layer, in the same time there was a significant deference in N, P, and K soil contents in the same layer.

Addition of nitrogen and potassium fertilizers caused a significant increase in leaves number and there tall, while the irrigation system did not record difference in plant growth.