Nitrogen Mineralization Characteristics of Different Organic Fertilizers in Ginger Planting

doi:10.11924/j.issn.1000-6850.casb16120035

Abstract

Abstract: A field experiment was conducted to study nitrogen mineralization characteristics by the application of fermented chicken manure, refined organic fertilizer and bio-organic fertilizer. The results showed that nitrogen mineralization rates were slow before seedling emergence under the three organic manure treatments, but they were different in the late stage. Nitrogen mineralization rate of refined organic fertilizer was uniform from seedling stage to harvest, stage mineralization rate was 6%- 7% , the total amount of nitrogen mineralization was 27.02%; the total nitrogen mineralization rate of chicken manure was the highest of 30.48%, and the maximum value of stage mineralization rate was in the early stage of vigorous growing period of 11.39% ; the total nitrogen mineralization rate of bio- organic fertilizer was the lowest of 26.11% . The application of refined organic fertilizer increased ginger yield and reduced nitrate content, bio- organic fertilizer could improve the yield of ginger, but had no effect on nitrate content, fermented chicken manure increased both yield and nitrate content.

CLC Number:

S141

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