تأثير التسميد العضوي و التلقيح بالمايكوريزا في كفاءة امتصاص نبات الذرة الصفراء للفوسفور و إنتاجه للمادة الجافة

الملخص EN

The Vesicular–arbuscular mycorrhizae affect on plant uptake of nutrients.

To study the effect of organic fertilization on the contribution of that fungi on phosphorous availability and Maize (Zea mays L.

cv.

Baseel 1) phosphorous uptake, different levels of cattle manure (OM) and mycorrhizae inoculation (VAM) (mixture of six types of Glomus Sp.) were used in pot experiment using three types of soils: the first one (S1) was poor, the second (S2) was rich, while the third one was very rich in lime.

Results showed a significant increase (P<0.05) in plant P content, and total P uptake due to organic fertilization regardless of the studied soil.

Mycorrhizae inoculation and the interaction between organic fertilization and mycorrhizae inoculation caused –in general- a remarkable decrease in plant P content and dry matter yield especially in (S1) and (S2) soils.

The comparison between the studied soils showed that mycorrhizae inoculation decreased plant total P uptake by 7.04, 21.38% in soils (S1) and (S3) respectively, but increased P uptake by 20.91% in soil (S2) in comparison with control (-VAM).

In the same manner, the interaction between organic fertilization and mycorrhizae inoculation decreased plant total P uptake in soils (S1, S3), but increased it in soil (S2).