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Effect of Cropping Sequence on Take-All and Take-All Decline in Durum Wheat Under Irigation

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farm_46_05_02.pdf
Title: Effect of Cropping Sequence on Take-All and Take-All Decline in Durum Wheat Under Irigation
Author: Thompson, Curtis; Stack, Robert W.
Description: The 'Take-all' root rot fungus is worldwide in distribution. It affects winter wheat more than summer varieties. It is present in North Dakota. But, it wasn't a major problem in North Dakota. However, irrigated crops do experience more of this problem. Crop rotation has proven to be the most effective method of reducing root diseases in 'dryland' wheat. However, little was known on how rapidly take-all would build up in Spring' wheat grown on newly irrigated land and to determine if different rotation crops would influence take-all development. Also, researchers wanted to determine if 'take-all decline' would occur due to an antiagonistic soil bacteria that reduces take-all in soil. It was discovered that Take-all can build up in the soil in less than three growing seasons. Row crops rotations did slow the development of such for a few rotation cycles. Take-all decline does occur in continuously cropped irrigated Spring wheat possibly as soon as four or five successive crops.
Date: 1989
Subject:
Permalink: http://hdl.handle.net/10365/6284

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