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Abstract

Not AvailableTHE STUDY ATTEMPTS TO ANALYSE 12 SOIL PROFILES AT CHALLESAR (AGRA) REPRESENTING TYPICAL RAVINES USED UNDER AGRICULTURE , HORTICULTURE , GRASSES, MIXED FOREST AND FOREST LANDUSE FOR AVAILABLE NUTRIENTS AND PHYSICO- CHEMICAL CHARACTERISTICS . THE SOILS UNDER DIFFERENT LANDUSES WERE ALKALINE IN REACTION, pH ranged between 7.6 to 9.4, CALCIUM CARBONATE WAS PRESENTED IN ALL THE PROFILES ( 4 TO 19.9%). COMPARATIVELY LOW VALUES OF pH and CaCO3 WERE OBSERVED IN SOILS UNDER PERMANENT COVER OF VEGETATION. THIS WAS MAINLY DUE TO HIGHER CONTENTS OF ORGANIC CARBON (0.45%) OF FOREST SOILS THAN UNDER AGRICULTURE (0.30%) OR HORTICULTURE (0.28%) LANDUSE. AVAILABLE NUTRIENTS ( N, P AND Zn) WERE HIGHER IN SOILS UNDER PERMANENT VEGETATION THAN UNDER AGRICULTURE OR HORTICULTURE LANDUSE AND WERE POSITIVELY AND SIGNIFICANTLY CORRELATED WITH ORGANIC CARBON CONTENTS SOILS ( r= 0.90 -N , 0.82 p AND 0.88 Zn)Not Availabl

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