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Pakistan Journal of Biological Sciences
Year: 2004  |  Volume: 7  |  Issue: 11  |  Page No.: 1876 - 1879

Effect of Tillage Practices and Nitrogen levels on the Physical Properties of Soil

M.F. Hossain, M.S. Akter, U.K. Majumder, M.S.I. Sikder and M.M.A.A. Chowdhury    

Abstract: The experiment was conducted to evaluate the impact of tillage and nitrogen on soil physical properties such as bulk density, particle density, soil moisture, porosity, air filled porosity. Soil physical properties were significantly influenced by different tillage practices but in case of nitrogen treatments there were no significant variation. Bulk density was significantly increased with soil depth. The highest bulk density of 1.46 cm-3 was recorded under no tillage at 20-30 cm soil depth. Maximum particle density (2.53 g cm-3) was measured by 10 cm deep tillage (T1) at 10-20 cm soil depth. Soil porosity was statistically influenced by different tillage operations. The maximum soil porosity of 64.68% was observed by 20 cm deep tillage (T2) at 0-10 cm soil depth. The soil moisture significantly decreased with soil depth. The highest moisture content of 44.43% was recorded under deep tillage (T2) at 0-10 cm soil depth and lowest 23.53% was found by control (T0) at 20-30 cm depth. Maximum air filled porosity (15.66%) was recorded in deep tillage (T2) at 20-30 cm soil depth. High air filled porosity indicated low moisture content in soil.

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