A field experiment was conducted in Al-Muthanna Governorate to studied influence of different levels of phosphorus three rate (0,50,100) kg P h-1 and three Payments of application (once , twice ,and three parts) on phosphorus released in the soil solution . The order first equation was used to explanation of the results. The result was showed phosphorus released was decreased with time in creased so the best result was 19.71 mgP kg-1 at P2T2 treatment at 5 and 150 minutes(0.73mgkg-1).
- M. Saad, Agric. College, Al-Muthanna Univ.*
M.H. AL-absawy, Agric. college, Al Muthanna Univ.