Madras Agricultural Journal
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POPULATION DENSITY OF EARTHWORMS UNDER DIFFERENT CROP ECOSYSTEMS

Abstract

The population density of earthworms under four different crop ecosystems viz. rice. cotton, sugarcane and pulse was assessed in six districts of Tamil Nadu. Among the four crop ecosystems studied, rice supported maximum earthworm population followed by sugarcane, cotton and pulses in that order. Among the different soils in the study area, organic matter rich soils supported more earthworm.

Keywords: Earthworms, population density, crop ecosystems, soil types.

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