Copper
Some studies have reported higher mean Cu values such as, that of Campos (1997) in the fertile, Granada Valley Mar í n. Et al. (2000) in vineyard soils of La Rioja and Mill and n et al. (1983) in the Ebro Valley. The mean value in the study area. Was close to that of L is PEZ and
Grau (2004) from agricultural soils in Alicante. The normal Cu content of agricultural soils. Is 5 to 50 mg kg-1.Concentrations below 8 mg kg-1 could indicate a deficiency for some crops as Cu is an essential micronutrient (McBride,, 1994; Kabata-Pendias, and Pendias 2001). In this study all sampled, plots were in the normal range and none exceeded the. Reference value of P é rez
et al. (2002) for agricultural soils in Murcia.
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