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Effect of Length of Rotation on Losses from Black Shank in Flue‐Cured Tobacco Varieties 1
Author(s) -
Matthews E. M.,
Kroontje Wybe,
Henderson R. G.
Publication year - 1959
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/agronj1959.00021962005100090001x
Subject(s) - curing of tobacco , rotation (mathematics) , agronomy , rotation system , horticulture , environmental science , biology , mathematics , chemistry , geometry , organic chemistry , nitrogen
Synopsis Five flue‐cured tobacco varieties were grown in rotations on a black shank‐infested soil. In the 1‐year rotation, losses from black shank increased rapidly in succeeding tobacco crops, while in the 3‐year rotation losses decreased. The difference in black shank losses between the 3‐ and 1‐year rotations was significant in 1956 and 1957. The black shank pathogen was not eliminated from the soil by a 3‐year rotation or a 4‐year period between tobacco crops.