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Most fertilizer sold to gardeners uses urea as the nitrogen source, but most commercial greenhouses use nitrate as their main nitrogen source. Why? I have been spending time in the African violet (AV) community, and most growers, including the African Violet Society of America (AVSA), recommend using nitrate rather than urea. But Schultz African violet fertilizer ... Read More
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The post Urea vs Nitrate in Fertilizer appeared first on gardenmyths.com.