ATMOSPHERIC NITROGEN FIXATION BY PHOTOSYNTHETIC MICROORGANISMS IN A SUBMERGED PHILIPPINE SOIL
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概要
- 論文の詳細を見る
Photosynthetic nitrogen-fixing microorganisms help maintain the nitrogen level of soil in rice paddies when environmental factors favor the growth of microorganisms. Our studies showed that blue-green algae in particular have a significant role in nitrogen-fixation in light. The most active nitrogen-fixation by microorganisms occurred in the soil shortly after it had been submerged under light. The longer the submergence, the less nitrogen microorganisms were fixed. In a greenhouse experiment, the fixed nitrogen appeared not to be immediately available to the rice plant. The amount of nitrogen that can be fixed in the field by nitrogen-fixing microorganisms in paddy water was estimated using the acetylene reduction method during the rice-growing period. The amount of nitrogen fixation by these microorganisms is not sufficient to account for the amount of nitrogen uptake by rice during the rice-growing period.
- 一般社団法人日本土壌肥料学会の論文
著者
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YOSHIDA Tomio
The International Rice Research Institute
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Bautista Ellen
The International Rice Research Institute
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RONCAL Rosabel
The International Rice Research Institute
関連論文
- DECOMPOSITION OF RICE RESIDUES IN TROPICAL SOILS : IV. The Effect of Rice Straw on Nitrogen Fixation by Heterotrophic Bacteria in Some Philippine Soils
- NITROGEN TRANSFORMATIONS OF AMMONIUM SULFATE AND ALANINE IN SUBMERGED MAAHAS CLAY
- DECOMPOSITION OF RICE RESIDUE IN TROPICAL SOILS : III. Nitrogen Mineralization and Immobilization of Rice Residue during Its Decomposition in Soil
- EFFECT OF ORGANIC MATTER APPLICATION AND WATER REGIMES ON THE TRANSFORMATION OF FERTILIZER NITROGEN IN A PHILIPPINE SOIL
- DEGRADATION OF 2,4-D, 2,4,5-T, AND PICLORAM IN TWO PHILIPPINE SOILS
- FORMATION AND DEGRADATION OF ETHYLENE IN SUBMERGED RICE SOILS
- DISTRIBUTION, AND UPTAKE BY RICE PLANTS OF ^N-LABELED AMMONIUM APPLIED IN MUDBALLS IN PADDY SOILS
- ATMOSPHERIC NITROGEN FIXATION BY PHOTOSYNTHETIC MICROORGANISMS IN A SUBMERGED PHILIPPINE SOIL
- EFFECT OF ORGANIC MATTER ON THE BIODEGRADATION OF SOME ORGANOCHLORINE INSECTICIDES IN SUBMERGED SOILS
- EFFECT OF ORGANIC ACID TRANSFORMATIONS IN SUBMERGED SOILS ON GROWTH OF THE RICE PLANT
- NITRIFICATION AND DENITRIFICATION IN SUBMERGED MAAHAS CLAY SOIL
- DECOMPOSITION OF RICE RESIDUE IN TROPICAL SOILS : I. Nitrogen Uptake by Rice Plants from Straw Incorporated, Fertilizer (Ammonium Sulfate) and Soil
- DECOMPOSITION OF RICE RESIDUE IN TROPICAL SOILS : II. Immobilization of Soil and Fertilizer Nitrogen by Intact Rice Residue in Soil