The Mid-Atlantic Association of Professional Soil Scientists (MAPSS) is a non- profit organization dedicated to the advancement of the profession of soil science and the protection of the public interest in matters related to soil science. The Association was organized in 1987 and serves professionals primarily in the Maryland, Delaware and District of Columbia area. The membership consists of private consultants, federal government employees, university faculty, state and county employees and other individuals interested in the goals and objectives of the Association in the Mid-Atlantic region.



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Go Terps AND Blue Hens!

Fall 2019 INaugural UD Soil Judging Team in Rock HaLL, md. Off to OHIO

UMD hosted the Fall 2019 Regional Soil Judging Contest this year in Rock Hall, MD. UMD triumphed as the #1 overall team and being home to the TOP 3 individual winners. They are off to Ohio in the spring for Nationals along with the Univerity of Delaware, placing 5th in their inaugural appearance at the soil judging competition!

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Our Newsletter

Days gone by: Jim brewer Hard at work.

Read about recent MAPSS events, the triumphs of the UMD Soil Judging Team, and current research at UMD uncovering the secrets of cover crops when if it comes to nitrogen leaching.

Summer: Vol 30_Issue 1>


Thanks to all who helped and all who participated in the 8th international conference to address the issue of acid sulfate soils, found in coastal regions throughout the world. Oxidation of the metal sulfides in these soils, upon exposure to air,  produces sulfuric acid. The subsequent acidification of soil and drainage waters often leads to detrimental ecological consequences.