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Nitrogen Uptake from Solution by Soybeans at Successive Stages of Growth 1
Author(s) -
Lathwell D. J.,
Evans C. E.
Publication year - 1951
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1951.00021962004300060004x
Subject(s) - citation , library science , mathematics , political science , computer science
D. J. LATHWELL AND C. E. EvANS MANY attempts have been made to increase the yield of soybeans. Except in localized instances the soybean has given very little response to direct applications of phosphate and potash. Even though the soybean is a legume it has been supposed that the amount of nitrogen fixed by the symbiotic bacteria falls far short of meeting the nitrogen needs of the plant. This may be true, particularly on the light colored, low organic matter content soils of some areas of Ohio. In order to obtain further information regarding the nitrogen requirements of the soybean plant, sand culture experiments were conducted with this plant in 1948 and 1949.