Effect of Mg-Modified Waste Straw Biochar on the Chemical and Biological Properties of Acidic Soils.

As the incubation time increased, MRBC-400, MRBC-500 and MRBC-600 treatments all showed a trend of decreasing and then increasing, while there was some variation but no regularity in the total nitrogen concentration of the MCBC treatments at each incubation time. 2.6.

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The MRBC treatments all showed increasing and then decreasing trends in the soil-available potassium concentration with increasing incubation time, while MCBC-300, MCBC-500 and MCBC-600 treatments showed a decreasing trend in the available potassium concentration with an increasing incubation time.

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With increasing incubation time, the pH of soil treated with MRBCs showed a significant increase at first and then decreased, while the pH value of soil treated with MCBC (Mg-modified Corn straw Biochar) showed an increasing trend.

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