L −1) for drinking water set by the US Environmental Protection Agency.L −1, which satisfied the threshold (Moreover, under this fertilization way, nitrate concentration in soil leachate dropped to 6.4 mg The highest N use efficiency with the least nitrate enrichment in soil was also found in ROF treatment. ha −1 (first, second and third rotation crop, respectively) with best vegetable quality was obtained in ROF treatment.Results showed that organic fertilizers significantly increased vegetable yield and quality, but with inappropriate application may cause serious environmental risk such as nitrate pollution. The effect of chicken manure after different disposal methods (water-logged composting, GOF anaerobic digestion, BR thermophilic composting, ROF) on vegetable growth and environmental risk was investigated under the tomato-celery-tomato field.
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