Furthermore, all treatments showed an increasing trend in soil pH at the JS, with a subsequent decline during the RP, although the pH consistently remained within a slightly alkaline range of 7.0–8.0.
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Comprehensive Evaluation of Biogas Slurry Fertility: A Study Based on the Effects of Biogas Slurry Irrigation on Soil Microorganisms and Enzyme Activities in Winter Wheat Fields.
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The sentences
The AK levels of the treatments generally displayed a decreasing trend followed by an increase, with higher levels observed during the JS compared to other periods, and CK consistently having the lowest AK across all periods.
The differences among treatments were highly significant.