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Fertigation with micronized Sulfur rapidly reduces soil pH

Blueberry is adapted to low soil pH in the range of 4-5.5. At higher pH, soil is often modified with elemental sulfur (S) prior to planting. A 2-year study was conducted to determine the potential of applying micronized wettable S by fertigation through the drip system to reduce soil pH in highbush blueberry. The field was planted in October 2010. The S was mixed with water and injected weekly for 2 months prio...