Penn State Extension

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Penn State Extension Sulfur Survey for 2014-2016 Penn State Extension Sulfur Survey for 2014-2016 - News
There is increasing concern with sulfur (S) deficiency due to reduced atmospheric S deposition which is reflected in a trend toward lower soil test S levels. More
How Much Soil Phosphorus is in Pennsylvania’s Lawns?
How Much Soil Phosphorus is in Pennsylvania’s Lawns? - Articles Articles

How Much Soil Phosphorus is in Pennsylvania’s Lawns?

Peter Landschoot, Ph.D., John Spargo

Indiscriminate use of phosphorus-containing fertilizer on runoff-prone turfgrass sites is thought to contribute to contamination of ground and surface water. More