Effect of Intensive Fertilization Practice on Some Calcareous Soils in Saudi Arabia PDF

Keywords

soil fertility, Saudi Arabia, soil testiing

Abstract

A soil fertility survey was conducted over two years in two major agricultural regions in Saudi Arabia. Four centre pivot fields representing Hail and Tabuk sites were chosen. Effect of intensive application of chemical fertilizers used for wheat production on soil chemical properties was studied. Soil test levels of P, K, Fe, Zn, Mn and Cu were determined. The results show that there is considerable P accumulation in the surface layers of all fields under investigation; whereas the K content of the soils is decreasing. Mn build up in the surface layers of all the fields has also been observed.