The use of ammonium fertilisers to reduce the severity of take-all (Gaeumannomyces graminis var. tritici) on wheat in Western Australia |
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Authors: | G C MACNISH JANE SPEIJERS |
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Institution: | Department of Agriculture, Jarrah Road, South Perth, W. A., 6151, Australia |
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Abstract: | In field experiments in Western Australia ammonium fertilisers significantly reduced the severity of root damage to wheat ( Triticum aestivum ) caused by Gaeumannomyces graminis var. tritici. A series of response lines depicting the effect of sources and rates of nitrogen on take-all are presented. In general, the higher the rate of ammonium nitrogen used, the greater the reduction in the severity of take-all. Ammonium sulphate and ammonium sulphate/mono-ammonium phosphate mixture were more effective in reducing disease than di-ammonium phosphate, urea or ammonium nitrate. Sodium nitrate did not reduce take-all. |
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