Abstract
Ten leguminous species viz Alysicarpus longifolius, Clitoria tarnatea, Crotalaria burhia, Crotalaria medicaginea, Indigofera argentea, Indigofera linnaei, Indigofera sessiliflora, Mimosa hamata, Mucuna pruriens and Rhynchosia minima were assessed for soil biological activity and its nutrients status from some degraded Western Rajasthan soils. The rhizospheric soil was assessed for acid and alkaline phosphatase activity, dehydrogenase activity, soil organic carbon, NO3- N, NH4+ N, moisture content and relative neigbhour effects. Soil organic carbon (SOC), N03- N, NH4+ N, phosphatase, dehydrogenase activity and moisture content was observed higher than control in the rhizospheric soils of all species. Relative neighboring effect (RNE) indicates that species are not influenced by each other. However, soil pH remains around 8 and there was varying degree of RNE between and among the species. In most of the species except Indigofera argentia, I. sessiliflora and Crotalaria medicaginea all other performed well. It was observed that soil moisture played an important role in the soil biological enzyme activities. On the basis of results obtained, Mimosa hamata, Rhynchosia minima, Mucuna pruriens, Clitoria tarnatea and Crotalaria burhia performed best. Further studies are required to be carried out in this direction.
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