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231225s1999 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS.1999.83.11.1039
|2 doi
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|a eng
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| 100 |
1 |
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|a Dissanayake, N
|e verfasserin
|4 aut
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|a Organic Material Soil Amendment Effects on Root Rot and Sugarcane Growth and Characterization of the Materials
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|c 1999
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Soil amendment with different organic materials was evaluated in greenhouse experiments for effects on root rot and growth of sugarcane. Materials included composts prepared from cotton gin trash, cottonwood bark, mixed hardwood bark, municipal solid waste, and municipal yard waste; municipal biosolids; and a sugar mill by-product, filterpress cake. Field soil, steam-treated field soil, and steam-treated soil infested with Pythium arrhenomanes were amended with nonsterile or steam-treated organic materials. A metalaxyl fungicide treatment was included for comparison. When added in nonsterile form, cotton gin trash compost, filterpress cake, and biosolids suppressed disease and increased plant growth in field soil and soil infested with P. arrhenomanes, but this ability was reduced after steam treatment. Bark composts were capable of suppressing root rot and increasing plant growth in field soil and Pythium-infested soil when added in either nonsterile or steam-treated forms. Plant growth in steam-treated soil was not promoted by nonsterile or steam-treated materials. Disease suppression provided by organic materials resulted in plant growth increases generally lower than those resulting from metalaxyl treatment in steam-treated soil infested with P. arrhenomanes, but some amendments resulted in growth increases comparable to those obtained with the metalaxyl treatment in field soil. Municipal waste composts had no effect or were detrimental to sugarcane growth. Differences in microbial community composition and chemical properties, including N content, C:N ratio, and other mineral nutrient levels, distinguished organic materials that may suppress disease and promote plant growth by different mechanisms. Microbial activity level of a material was an indicator of potential for disease suppression. The study results suggest that the severity of root rot in sugarcane may be reduced by amending soil with some organic materials
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Hoy, J W
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant disease
|d 1997
|g 83(1999), 11 vom: 30. Nov., Seite 1039-1046
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|g volume:83
|g year:1999
|g number:11
|g day:30
|g month:11
|g pages:1039-1046
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|u http://dx.doi.org/10.1094/PDIS.1999.83.11.1039
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