 His results are summarized as follows : (1) Peas, alfalfa, serradella, lupine, probably clover, and apparently all leguminous plants, have the power of acquiring large quantities of nitrogen directly from the air during their growth. There is no doubt...  Bulletin - Page 160by United States. Weather Bureau - 1905Full view - About this book
 | Science - 1890 - 980 pages
...cereals with which experiments have been completed have not manifested the same power, and they do not have such tubercles as are formed on the roots of the legumes. The addition of soil infusions did not seem necessary for the production of root-tubercles. The size... | |
 | Pennsylvania. State Board of Agriculture - Agriculture - 1889 - 690 pages
...cereals with which experiments have been completed have not manifested this power of acquiring nitrogen, nor do they have such tubercles as are formed on the roots of legumes. 5. In the experiments here reported the addition of soil infusions did not seem necessary... | |
 | Storrs Agricultural Experiment Station - 1889 - 1114 pages
...cereals with which experiments have been made have not manifested this poiver of acquiring nitrogen, nor do they have such tubercles as are formed on the roots of legumes. 6. In the experiments here reported the addition of soil infusions did not seem necessary... | |
 | Science - 1890 - 924 pages
...cereals with which experiments hare been completed have not manifested the same power, and they do not have such tubercles as are formed on the roots of the legumes. The addition of soil infusions did not seem necessary for the production of root-tubercles. The size... | |
 | Cleveland Abbe - Crops and climate - 1905 - 406 pages
...directly from the air during their growth. There is no doubt that the free nitrogen of the air is thus acquired by these plants. This acquisition has something...are not furnished the spores of the organisms were 160 floating in the air and were deposited in the pots in which the plants grew. As a rule, the greater... | |
| |
