Chemical Characteristics of Soil Fulvic Acids Fractionated Using Polyvinylpyrrolidone (PVP)
スポンサーリンク
概要
- 論文の詳細を見る
Elementary composition, IR spectra, ^13C-NMR spectra and molecular size distribution were determined for fulvic acids (FAs), polyvinylpyrrolidone (PVP)-adsorbed and non-absorbed fractions of FAs and humic acids (HAs). The analytical data showed that the properties were distinctly different between the PVP-adsorbed and the non-absorbed fractions. Atomic ratio, IR spectra and ^13C-NMR spectra indicated that the PVP-adsorbed fractions contained a larger number of aromatic rings and carboxyl groups including ester than the non-adsorbed fractions. On the other hand, carbohydrates and N-containing compounds such as peptides or amino acids were concentrated in the PVP-non-adsorbed fractions. Weight avarage molecular weights (M^^-_w) of the adsorbed fractions were lower and the range of molecular size distribution was narrower than those of the non-adsorbed fractions. Chemical characteristics of HAs varied depending on the types of soils, while the characteristics of HAs varied depending on the types of soils, while the characteristics of the PVP-adsorbed and non-adsorbed fractions of FAs were similar in the various types of soils.
- 社団法人日本土壌肥料学会の論文
著者
-
Watanabe Akira
Laboratory of Soil Biology and Chemistry, Graduate School of Bioagricultural Sciences, Nagoya Univer
-
Kuwatsuka Shozo
Laboratory Of Soil Science Faculty Of Agriculture Nagoya University
関連論文
- Origin and Properties of Humus in the Subsoil of Irrigated Rice Paddles : IV. Effect of Water Percolation on the Binding Type of Humus in a Submerged Plow Layer Soil
- Comparison of Humus Composition in the Subsoil of Japanese Paddy and Upland Fields
- Origin and Properties of Humus in the Subsoil of Irrigated Rice Paddies : III. Changes in Binding Type of Humus in Submerged Plow Layer Soil
- Origin and Properties of Humus in the Subsoil of Irrigated Rice Paddies : II. Effects of Subsoil Constituents and Drainage on the Accumulation of Organic Matter Leached from the Plow Layer Soil
- Origin and Properties of Humus in the Subsoil of Irrigated Rice Paddies : I. Leaching of Organic Matter from Plow Layer Soil and Accumulation in Subsoil
- Formation of a Methylthiolated Metabolite from the Fungicide Chlorothalonil by Soil Bacteria
- Concurrent Observation of Several Processes of Nitrogen Metabolism in Soil Amended with Organic Materials : V. Effects of Long-Term Application of Farmyard Manure and Nitrogen Fertilizer on N Cycling Processes in Upland Field Soil
- RNA synthesis in germinating red bean seeds
- 5-8 Distribution of Photosynthetically Fixed C in Irrigated Rice : I. Contribution to Soil Dissolved Organic C and Microbial Biomass
- Effect of Rice Straw Application on CH_4 Emission from Paddy Fields : IV. Influence of Rice Straw Incorporated during the Previous Cropping Period
- Comparison of the Composition of Humic and Fulvic Acids Prepared by the IHSS Method and NAGOYA Method
- Effect of Rice Straw Application on CH_4 Emission from Paddy Fields : III. Effect of Incorporation Site of Rice Straw on CH_4 Emission Rates and Their Variation among Shoots of a Rice Plant
- Methane Production and Its Fate in Paddy Fields : V. Fate of Methane Remaining in Paddy Soil at Harvesting Stage
- Concurrent Observation of Several Processes of Nitrogen Metabolism in Soil Amended with Organic Materials : I. Effect of Different Organic Materials on Ammonification, Nitrification, Denitrification, and N_2 Fixation under Aerobic and Anaerobic Conditions
- Comparison of Two Methods of Preparation of Humic and Fulvic Acids, IHSS Method and NAGOYA Method
- Concurrent Observation of Several Processes of Nitrogen Metabolism in Soil Amended with Organic Materials : III. Changes in Microbial Populations Following Application of Ammonium-Nitrogen
- Concurrent Observation of Several Processes of Nitrogen Metabolism in Soil Amended with Organic Materials : IV. Regulatory Effects of Ammonium- and Nitrate-Nitrogen on Denitrification and N_2 Fixation
- Concurrent Observation of Several Processes of Nitrogen Metabolism in Soil Amended with Organic Materials : II. Effect of Farmyard Manure on Ammonification, Nitrification, Denitrification, and N_2 Fixation at Different Levels of Soil Moisture
- Inhibitory Action of Dissoled Humic Substances on the Growth of Soil Bacteria Degrading DDT
- Effect of Pesticides on Interaction among Cellulose Decomposition, Microflora and Soil Conditions : Insertion of Cellulose Sheets in Flooded Soil Samples
- Effect of Rice Straw Application on CH_4 Emission from Paddy Fields : II. Contribution of Organic Constituents in Rice Straw
- Effect of Rice Straw Application on CH_4 Emission from Paddy Fields : I. Effect of Weathering of Rice Straw in the Field during Off-Crop Season
- Enrichment Process of 2,4-D Degraders in Different Soils under Upland Conditions
- Ethanol-Soluble and Insoluble Fractions of Non-Humic Substances in Soil Fulvic Acids
- Chemical Characteristics of Soil Fulvic Acids Fractionated Using Polyvinylpyrrolidone (PVP)
- Characteristics of 2,4-Dichlorophenoxyacetic Acid (2,4-D)-Degrading Microorganisms Isolated from Different Soils
- Ethanol-Soluble and Insoluble Fractions of Humic Substances in Soil Fulvic Acids
- Fractionation of Soil Fulvic Acids Using Polyvinyl-pyrrolidone and Their lonization Difference Spectra
- Water-Soluble Organic Materials in Paddy Soil Ecosystem : I. Fractionation of Water-Soluble Organic Materials in Leachate from Submerged Paddy Soils Using PVP and Ion Exchange Resins
- Changes in Populations and Activity of Three Fusarium spp. in Soils with Different Properties
- Properties of Non-Humic Substances of Fulvic Acids Fractionated by Ethanol Precipitation
- Triangular Diagram for Humus Composition in Various Types of Soils