2007•Unpublished venueRequires access
Copper content in citrus grandis orchards and its distributing characters of soil profiles
Huang YuYi
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Abstract
In the present experiment,the contents of available copper and total copper in 21 top soil(0~30 cm) samples and 36 soil samples of 12 soil profiles collected from main citrus grandis producing areas of Guangxi were determined.The results showed that the available copper content in top soil of the citrus grandis orchards was 0.18-23.93 mg/kg,and its average was 3.33 mg/kg which was higher than that of cultivated soils in Guangxi and the optimum range for the citrus orchard.The total copper content and its average were 5.7171.35 mg/kg and 29.36 mg/kg,respectively.Moreover,soil pH and soil organic matter were the main factors to affect the available copper content in top soil of the citrus grandis orchards.The results also indicated that the available copper and total copper contents in soil profile were decreased with increased depth in the soil profile.