Autotrophic Nitrification in Acid Tea Soils
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概要
- 論文の詳細を見る
Investigations to analyze the nature of nitrification in acid soils were carried out in the laboratory using 2 soil types from a tea field. The optimum temperature for the nitrification activity in these soils was 25℃ and the activity was inhibited above 35℃, suggesting that the nitrifying bacteria became adapted to the soil conditions. The optimum NH_4^+-N concentrations for nitrification ranged between 20 and 200 mg N/100 g of soil and the activity decreased at a concentration above 300 mg N. The effect of acidity on nitrification was studied by using soil samples amended with various amounts of CaCO_3. Although the pattern of NO_2^- production changed, the rate of ammonia oxidation was not influenced by the addition of CaCO_3. The nitrification activity was completely inhibited by the addition of nitrapyrin or acetylene. These results suggest that acid-tolerant or acidophilic autotrophic nitrification occurs in acid tea soils in Japan.
- 社団法人日本土壌肥料学会の論文
著者
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Hayatsu Masahito
Department Of Environmental Science For Human Life Faculty Of Agriculture Shizuoka University
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Hayatsu Masahito
Department Of Tea Agronomy National Research Lnstitute Of Vegetables Ornamental Plants And Tea (nivo
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Kosuge Nobuo
Department of Tea Agronomy, National Research Institute of Vegetables, Ornamental Plants and Tea (NI
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Kosuge N
Department Of Tea Agronomy National Research Lnstitute Of Vegetables Ornamental Plants And Tea (nivo
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Kosuge Nobuo
Department Of Tea Agronomy National Research Institute Of Vegetables Ornamental Plants And Tea (nivo
関連論文
- The Lowest Limit of Limit pH for Nitrification in Tea Soil and Isolation of an Acidophilic Ammonia Oxidizing Bacterium
- Soil Microbial Biomass and Fluorescein Diacetate Hydrolytic Activity in Japanese Acidic Tea Field Soils
- Effects of Difference in Fertilization Treatments on Nitrification Activity in Tea Soils
- Nitrous Oxide Flux from a Tea Field Amended with a Large Amount of Nitrogen Fertilizer and Soil Environmental Factors Controlling the Flux(Environment)
- Nitrous Oxide Emission Potential of 21 Acidic Tea Field Soils in Japan
- Nitrous Oxide Production from Strongly Acid Tea Field Soils
- Autotrophic Nitrification in Acid Tea Soils
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