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Arable Farming
Cropping
Sulphur fungicides
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<blockquote data-quote="Bogweevil" data-source="post: 7941150" data-attributes="member: 48190"><p>Sulphur very good on powdery mildews, much used on fruit and grape vines worldwide. Most organic apples will have had a surprisingly large number of sulphur applications (though organic growers like to play that down). Used on barley and peas quite widely in olden days - 1970s I believe.</p><p></p><p>Moderate effect on some other diseases - early researchers on intensive wheat production used repeated sulphur doses but once Azoles appeared the sulphur use dropped.</p><p></p><p>Research suggests that sulphur will help slow build up of resistance to more targeted fungicides in the same way as other multi-site protectant fungicides. As well as direct toxicity sulphur elicits phytoalexins in crops -a substance that is produced by plant tissues that inhibits the growth of pathogens.</p><p></p><p>And you get the fertiliser effect so a saving in AS. Sulphur deficiency s the commonest nutrient related disorder in Europe after all.</p><p></p><p>On the downside air pollution from sulphur dioxide, damaging to lungs, reported in California in residential areas near treated orchards and vineyards, so not entirely safe.</p></blockquote><p></p>
[QUOTE="Bogweevil, post: 7941150, member: 48190"] Sulphur very good on powdery mildews, much used on fruit and grape vines worldwide. Most organic apples will have had a surprisingly large number of sulphur applications (though organic growers like to play that down). Used on barley and peas quite widely in olden days - 1970s I believe. Moderate effect on some other diseases - early researchers on intensive wheat production used repeated sulphur doses but once Azoles appeared the sulphur use dropped. Research suggests that sulphur will help slow build up of resistance to more targeted fungicides in the same way as other multi-site protectant fungicides. As well as direct toxicity sulphur elicits phytoalexins in crops -a substance that is produced by plant tissues that inhibits the growth of pathogens. And you get the fertiliser effect so a saving in AS. Sulphur deficiency s the commonest nutrient related disorder in Europe after all. On the downside air pollution from sulphur dioxide, damaging to lungs, reported in California in residential areas near treated orchards and vineyards, so not entirely safe. [/QUOTE]
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