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Nitrogen fixation and beneficial effects of some grain legumes and green-manure crops on rice

✍ Scribed by R. Senaratne; D. S. Ratnasinghe


Publisher
Springer
Year
1995
Tongue
English
Weight
565 KB
Volume
19
Category
Article
ISSN
0178-2762

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## Abstract Nitrogen‐fixation by two species of __Nostoc__, one of them a lichen phycobiont, was generally stimulated by low concentrations of arsenic, cadmium, nickel, lead, palladium, and zinc. Higher concentrations (0.025 to 0.125 ppm) of arsenic, nickel, and palladium were also stimulatory; how