تأثير إضافة مستويات مختلفة من الكبريت على جاهزية الفسفور و نمو نبات الذرة الصفراء Zea mays L.

Abstract EN

A trial was conducted in the experimental field of the Technical Institute of Musayb (50 Km south of Baghdad) to find out the effect of sulfur (of Mishrak field) on some soil characteristics, phosphorous availability and growth of corn plant .

Sulfur fertilizer (92-96 % Sulfur) was applied in the rates (0,50,250,500,Kg/D) Phosphate, Nitrogen and potassium were applied in the rates of(P2O5- 50 Kg/D) , (N- 500 Kg/D) and (K2O- 20 Kg/D) respectively .

Seeds of Abu-Ghuraib (1) field corn were planted and plants received all the agricultural practices throughout the experiment course .

After harvest yield was recorded .Also phosphorous and some changes of soil chemical properties were recorded .

Results showed that a reduction in soil pH, increase in EC values and argumentation of available phosphorous were obtained .

On the other hand an increase of dry matter and plant content of phosphorous was observed associated with the application of sulfur .

therefore it be concluded that (500 Kg/D) of sulfur would causes an increase of dry matter and availability of phosphorous in the soil and its content in the plant.