i didnt find a ph digital tester in town or anywhere around me, i only found cheap paper tester and it turned to be neutral which is between 6.5-7.0. yes it is old soil and i dont think the place i found it in was adding any food to the soil since long time and i am sure the nutes were in that soil when it is new is already dissolved ,but i flushed it with tab water. my guess is no food in the soil but not sure if i should add some low concentration of nutes, i found 5-3-8 called Pokon around here.
still waiting for more input and discussion thanx anyway for contribution.