Nitrogenase activity in the rhizosphere of sugar cane and some other tropical grasses |
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| Authors: | Johanna Döbereiner J M Day P J Dart |
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| Institution: | (1) I.P.E.A.C.S., Campo Grande, ZC-26, Guanabara, Rio de Janeiro, Brazil;(2) Soil Microbiology Department, Rothamsted Experimental Station, Harpenden, Herts, England |
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| Abstract: | Summary Roots of sugar cane had considerable nitrogenase activity and produced up to 5 n moles ethylene/h/g root by the reduction of acetylene. The rhizosphere soil and soil mid-way between the cane rows also reduced acetylene.Beijerinckia indica was abundant on roots and in the soil. Nitrogenase activity was also associated with roots ofPanicum maximum,Pennisetum purpureum andCymbopogon citratus. |
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