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Some Factors Affecting the Longevity of Rhizobium in Florida Soils
Author(s) -
Thornton Geo. D.
Publication year - 1944
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1944.036159950008000c0045x
Subject(s) - citation , library science , soil water , computer science , environmental science , soil science
I T HAS BEEN definitely established that Rhizobium survives in soils for considerable periods of time in the absence of the host plants (i). The length of time of survival is controlled largely by such factors as moisture (4), light ( i) , the presence of such cations as calcium and hydrogen (7), and antagonistic organisms (5) in the soil. The majority of the experimental work on the longevity and survival of Rhizobium in both field and greenhouse has been done on the heavier soil types. Very little has been reported where the light sandy soils characteristic of the Coastal Plains region have been used. The need for information regarding survival of Rhizobium under these conditions has stimulated research along this line and this paper is a progress report of the results obtained. Nobbe and Hiltner (6) were among the first to report that soil inoculated one season would inoculate the crop the following year. Fred, et al. (3) reported instances where at least 17 years had elapsed between crops of soybeans on the same field and good inoculation was obtained. Deherain (2) found vetch plants to be inoculated on fields that had not grown legumes for 25 years. A very good summary of the many papers .concerning the effect of sunlight, desiccation, acidity, and antagonistic organisms is given by Albrecht and Turk (i) .