Sputnik: DigestNovosti Press Agency, 1969 - Russia (Federation) |
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Page 49
... nitrogen . Other micro - organisms have enriched it with oxygen . Fields owe their fertility to these minute toilers . Dr. Vinogradsky , re- garded as the father of soil micro- biology , discovered a bacterium which assimilates ...
... nitrogen . Other micro - organisms have enriched it with oxygen . Fields owe their fertility to these minute toilers . Dr. Vinogradsky , re- garded as the father of soil micro- biology , discovered a bacterium which assimilates ...
Page 153
... nitrogen from the air . Dr Turchin also believed this , and did not suspect that one day he would explóde some of his own scientific convictions . His published results of investiga- tions have indeed challenged views which appeared to ...
... nitrogen from the air . Dr Turchin also believed this , and did not suspect that one day he would explóde some of his own scientific convictions . His published results of investiga- tions have indeed challenged views which appeared to ...
Page 154
... nitrogen by plants . In experiments supervised by Dr. Turchin at Dolgoprudnaya , near Moscow , atmospheric nitrogen fed to a plant was " tagged " with radioac- tive isotopes . Within ten minutes it had penetrated the plant's cell sap ...
... nitrogen by plants . In experiments supervised by Dr. Turchin at Dolgoprudnaya , near Moscow , atmospheric nitrogen fed to a plant was " tagged " with radioac- tive isotopes . Within ten minutes it had penetrated the plant's cell sap ...
Contents
Letters to the Editor | 2 |
The Sage of Samarkand Vokrug Sveta | 8 |
Valentina Gagarina Tells of Yuris Last Day Alexei Golikov | 16 |
Copyright | |
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