Two way analysis of variance (ANOVA) was performed todetermine the effects offield treatments (rice straw incorporation,tillage depth) on SOC, MWD, plate sinkage resistance, penetrationresistance, tensile strength and COLE. Significant differences of themeans of tree replicates among all thefield treatments wereconsidered at P<0.05 using Fisher’s least significant different(LSD). The correlations between soil mechanical properties andSOC concentration were evaluated using Pearson's linear coefficients with the indication of statistical significance atP<0.05.Statistical analysis was performed using SPSS 16.0 software forWindows (SPSS Inc., Chicago)
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