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Effects of decomposing rice straw on growth of and nitrogen fixation by Rhizobium

Journal Article · · J. Chem. Ecol.; (United States)
DOI:https://doi.org/10.1007/BF00995756· OSTI ID:6304111
Five phenolic compounds produced in decomposing rice straw and sterile extracts of decomposing rice straw in soil were very inhibitory to growth of three strains of Rhizobium. The effects were additive and in several instances synergistic. The phenolic compounds also reduced nodule numbers and hemoglobin content of the nodules in two bean (Phaseohus vulgaris) varieties. Extracts of decomposing rice straw in soil (same concentration as in the soil) significantly reduced N/sub 2/ fixation (acetylene reduction) in Bush Black Seeded beans. This may explain in part the great reduction in soybean yields in Taiwan following rice crops when the rice stubble is left in the field.
Research Organization:
University of Oklahoma, Norman, OK 73019
OSTI ID:
6304111
Journal Information:
J. Chem. Ecol.; (United States), Journal Name: J. Chem. Ecol.; (United States) Vol. 7:2; ISSN JCECD
Country of Publication:
United States
Language:
English