تأثير مصدر مياه الري و النتروجين في تراكيز النتروجين و الفسفور و البوتاسيوم في قش و جذور و حبوب نباتات الدخن

الملخص EN

To study the effect of source of irrigation water source (Dijla Dera’a river and Abu Ghraib river) and nitrogen fertilizer levels ( 80 ,160 and 240 kg.ha-1) on concentrations of N, P and K in straw, root and grains of millet plants.

Pots experiment was conducted using silt loam soil (Typic Turrifluvent) .

10 kg of soil were put per pot.80 kg P.ha*1 and 60 kg K.

ha'1 were added to all treatments.

A complete randomized design was used with three replicates.

15 seeds of millet (Panlcum mUiaceum L.

) were planted , thinned to 10 plants per pot after germination.

At maturity plants were harvested , roots were excluded and straw and roots were mixed and dried .

N,P and K concentrations were determined in straw , root and grain .

The results can be summarized as follow : 1-Using Dijla Dera’a water in irrigation had a significant effect in decreasing the concentrations of N in straw and root and K in straw, root and grain of millet plants .

2-A significant effect of N levels in increasing the concentrations of N,P and K in straw and roots.

3-The interaction between source of irrigation water and N levels had a significant effect in increasing the concentrations of N and K in straw and roots of millet plants.