STATUS OF SOME MICRONUTRIENTS IN SOIL UNDER CITRUS ORCHARD A
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Abstract
A study was carried out to determine the status of some micronutrients in soil under
Citrus orchard at the University of Benin and to show the relationship between the
selected micronutrients and some soil’s properties. At each location, an area measuring 300 m by 200 m was marked out and the area divided into 3 equal parts. Each part made a replicate, soil sample were collected from 0-15 cm, 15 - 30 cm and 30 - 45 cm soil depths. A total of 18 soil samples were collected and analyzed using approved laboratory techniques Sand did not increase with increased soil depths while Silt and Clay increased significantly with increased soil depths. The pH wasmoderately acidic(5.56-5.70). Total nitrogen was generally low, Available phosphorus and organic was below critical level. Exchangeable bases were below critical level except Na and K which were above critical level. There were negative and significant correlation between the micronutrients and Sand, Clay, Silt, Organic carbon,Calcium, Sodium, Potassium, Total nitrogen and available phosphorus. E.C positive and significant correlation with copper but negative and significant correlated with Iron, Manganese and zinc. pH however negative and significant correlated with Copper, Iron, Manganese but positively and significant correlated with Zinc.
Citrus orchard at the University of Benin and to show the relationship between the
selected micronutrients and some soil’s properties. At each location, an area measuring 300 m by 200 m was marked out and the area divided into 3 equal parts. Each part made a replicate, soil sample were collected from 0-15 cm, 15 - 30 cm and 30 - 45 cm soil depths. A total of 18 soil samples were collected and analyzed using approved laboratory techniques Sand did not increase with increased soil depths while Silt and Clay increased significantly with increased soil depths. The pH wasmoderately acidic(5.56-5.70). Total nitrogen was generally low, Available phosphorus and organic was below critical level. Exchangeable bases were below critical level except Na and K which were above critical level. There were negative and significant correlation between the micronutrients and Sand, Clay, Silt, Organic carbon,Calcium, Sodium, Potassium, Total nitrogen and available phosphorus. E.C positive and significant correlation with copper but negative and significant correlated with Iron, Manganese and zinc. pH however negative and significant correlated with Copper, Iron, Manganese but positively and significant correlated with Zinc.
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