دور فطريات الميكوريزا في استجابة الذرة الصفراء لاضافات من الصخر الفوسفاتي والسوبر فوسفات

A field experiment is carried out on Dabba Research Site to determine the role of Mycorrhiza (M) in Maize response to Phosphate Rock (PR) and Super phosphate (TSP) additives. The experiment consists of (8) treatments and (3) replicates, so that (2) concentrations of PR, one of TSP, and a control with and without M have been used. There is an obvious increase of N, P, K, Ca, and Mg in shoots with significant differences in M treatments. The same result is obtained for N,P, and K in roots, but not to the same degree for Ca, Mg. In grains, the M effect is high for N,P and Mg, low for K, and nonexistent for Ca. An obvious increase of production is noticed in Mycorrhizal treatments.