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To determine the effects of different kinds of nitrogen fertilizer, especially high-efficiency slow-release fertilizers, on soil pH, nitrogen (N) and microbial community structures in an acidic celery soil, four treatments (CK, no N fertilizer; NR, urea; PE, calcium cyanamide fertilizer; and SK, controlled-release N fertilizer) were applied, and soil pH, total soil N, inorganic N, and soil microbial...
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