Microbiological and Enzyme Activities Profile in the Root Zone and Interspace Soils of Coconut and Arecanut Palms
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2007-02
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The microflora, enzyme activities, carbon and nitrogen mineralisation at three soil depths in the root zone and interspaces of coconut and arecanut palms were studied. The bacteria and fungi were more in the root zone soils of both the crops as compared to their respective interspace soils. Urease, phosphatase and dehydrogenase activities were greater in the root zone soils of coconut as compared to the interspace soils. In arecanut, only urease and phosphatase activities were higher in the root zone soils. Seasonal variation in the population of bacteria, fungi and actinomycetes was studied. Among fungi, Trichoderma spp. (30.5-49.0 %) and Aspergillus spp. / Penicillium spp. (11.4 to 29.0%) were dominant in the root zone of arecanut palm. The carbon and nitrogen mineralisation was higher in the root zone soil in both the crops as compared to the interspace soil.
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J.Plantn.Crops 1990 v-18 i-1 p-50-54