تأثير مياه عصر الزيتون و السماد العضوي و الآزوتي على المؤشرات البيولوجية للتربة المزروعة بالفول السوداني

الملخص EN

A field experiment was conducted on the Arachishypogaea.

L.

in the two growing season (2013-2014),(2014-2015) included (12) treatments with three replicates: control (without fertilization), different rates of (OMWW) (5-10-15) l/m2,organic fertilizer(cow waste) (C30-C15) ton/ha, and nitrogen fertilizer (N30-N15) kg/ha.

Some of biological properties of soil, yield were determined.

The results showed increasing in the number of (Hetrotrophicbacteria and, cellulose decomposing bacteria, Actenomycetes and Fungi) in both seasons in soil treated with (OMWW) (10-15) l/m2 + organic fertilizer(C15), compared with organic fertilizer treatment (C30).The number of (microorganisms) increased in soil treated with (OMWW) (10-15) l/m2 + nitrogen fertilizer(N15) comparatively with treatment of nitrogen fertilizer(N30).The numbers of (Actenomycetes and Fungi) increased in soil treated with (OMWW) (5) l/m2 + nitrogen fertilizer (N15).

The results showed increasing in soil respiration in both seasons in soil treated with (OMWW) (10-15) l/m2 + organic fertilizer (C15), and soil treated with (OMWW) (5-10) l/m2 + nitrogen fertilizer (N15).

On the other hand Arachishypogaea yield increased in soil treated with (OMWW) (10-15) l/m2, and soil treated with (OMWW) (10-15) l/m2 and organic fertilizer (C15) ton/ha in the first season, and soil treated with (OMWW) (15) l/m2and organic fertilizer (C15) ton/ha in the second season.

Also the yield increased in both seasons in soil treated with (OMWW) (10-15) l/m2 and nitrogen fertilizer (N15) compared with treatment of nitrogen fertilizer (N30) kg/ha, and treatment nitrogen fertilizer(N15).

The content of available P and K and organic matter increased in both seasons in soil treated with (OMWW) (15) l/m2and organic fertilizer (C15) ton/ha.