Abstract
Astragalus sinicus L. is a symbiotic nitrogen-fixing leguminous green manure crop traditionally grown in rice fields in the lower Yangtze Valley, southeastern China and Japan. In the lower Yangtze Valley, after the rice crop is harvested in September/October, A. sinicus seeds are sown to the drained field. The crop is plowed under at full blossoming stage in April/May; after that the field is flooded and prepared for transplanting rice seedlings. A fair yield of the green manure crop amounts to thirty to forty metric tons per hectare of fresh material, including tops and roots, containing approximately four kilograms nitrogen per metric ton, if well nodulated by efficient rhizobia. A. sinicus is grown yearly or in alternation with winter wheat, barley or rapeseed.
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© 1992 Springer-Verlag Berlin Heidelberg
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Chen, H.K., Li, F.D., Cao, Y.Z. (1992). Characteristics, Distribution, Ecology, and Utilization of Astragalus Sinicus-Rhizobia Symbiosis. In: Hong, GF. (eds) The Nitrogen Fixation and its Research in China. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-10385-2_23
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DOI: https://doi.org/10.1007/978-3-662-10385-2_23
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