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Soil is a dynamic, heterogeneous system, which is the centre of activity of different biota of which different arthropod (both macro and micro) plays a pivotal role in maintaining the soil ecosystem. Field experiment have been conducted during the Rabi season of 2018-19 in rice-french beans-sesame cropping system; clay soil with medium texture, to study the soil arthropods population, their richness. Experimental results showed that seven different classes of arthropods have been identified of which class Insecta recorded the major share (86.48%) followed by class Arachnida (12.59%). Among class Insecta, coleoptera order shares 39.15% and ranked as major contributing soil arthropods in the experimental field followed by order Hymenoptera-36.02% (in per square meter). In respect of macro soil arthropods population, richness in different treatments showed no significant impact though maximum population was recorded in CM1 (100% organic) followed by CM-2 (75% organic and 25% innovative). Correlation study of arthropod abundance and abiotic factors showed that arthropods population catch in pitfall negatively correlate with maximum temperature (-0.165) while positively correlate with minimum temperature (0.125), relative humidity (0.423) and rainfall (0.501). Soil micro arthropods population estimation through Berlese-Tullgren funnel showed significant maximum population was recorded in CM1 (mean value of 19.33 per observation), followed by CM2 (mean value of 12.19 per observation). |
