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Interpretive Summaries:
2006 - Impact of Mineral Nutrition on Soybean Plant Health
2005 - Impact of Mineral Nutrition on Soybean Plant Health
Impact of Mineral Nutrition on Soybean Plant Health, 2006
This project is part of a multi-state effort examining the effects of mineral nutrition on the incidence and severity of soybean diseases, including Asian rust. Several treatments, including soil-applied potassium chloride (KCl), foliar manganese (Mn), and fungicide are being studied. Fungicide applications are the most commonly used approach to combatting Asian rust.
In 2006, no Asian rust was observed, but septoria brown spot was present. Fungicide, applied alone or in combination with KCl, reduced brown spot incidence significantly, although infection rates were low across the site. No differences existed among treatments for grain yield, protein, oil, or fiber content. IN-24F
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