نبذة مختصرة : Thirty-two soil samples collected from fifteen soil profiles representing the gyomorphic units of El-Ser and El-Qawarir area, North Sinai Peninsula were investigated in order to study their total and available nutrients. Moreover, the relation between total and available macro and micronutrients and some soil variables was undertaken. The main results could be cited as follows. 1) Total P, K, Fe, Mn, Zn and Cu ranged from 220 to 960, 300 to 4500, 834 to 3674, 364 to 1284, 44 to 354 and 10 to 112 mg kg-1 , respectively. The lowest weighted means of the considered macro and micronutrients were associated with the soils of wind blown Sand (D), while the lowest weighted means of Fe and Zn was detected in the piedmont plain soils (PP3). On the other hand, the highest weighted means of these elements were associated with the soils of piedmont plain (PP2) and alluvial plan (AP). 2) The amounts of available P, K, Fe, Mn, Zn and Cu varied from 1.1 to 6.0, 16.0 to 279, 0.69 to 2.07, 0.37 to 1.46, 0.21 to 1.19, and 0.11 to 0.74 mg kg-1, respectively. Generally, available macro and micronutrients were in low amounts. 3) Factors affecting total and available macro and micronutrients were predicted through correlation coefficients between some soil variables with total and available elements. Also, the statistical measures, i.e., weighted mean, trend and specific range of these nutrients were computed and interpretend in terms of soil genesis and formation. [ABSTRACT FROM AUTHOR]
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