Effect of Fertilization Practice on Nitrate Accumulation and Leaching in Vegetable Greenhouse System
نویسنده
چکیده
A leaching experiment was conducted on three level of total N soils transplanted with lettuce in packed soil columns. Nitrate content in the surface soil layer increased to 52.6, 92.8 and 92.1 mg kg-1 when 30 t ha-1 poultry manure was used alone in the low, medium and high level of total N soils. Measured leachate data showed that more nitrate was leached in the chemical fertilized soils in the low and high level of total N soils. In conclusion, the study clearly demonstrated that the appropriate application rate of poultry manure and chemical fertilizer with minimized nitrate leaching loss. Copyright © 2014 IFSA Publishing, S. L.
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