University of Maryland Extension

Nutrient Management University of Maryland Extension's Agricultural Nutrient Management Program, which is a component of the University of Maryland's College of Agriculture and Natural Resources, focuses on reducing the pollution of the Chesapeake Bay by plant nutrients from cropland.  The University of Maryland Extension's Agricultural Nutrient Management Program (ANMP) is a component of the University or Maryland's College of Agriculture & Natural Resources.  The ANMP was established in 1989 as a cooperative effort between the University of Maryland Extension (UME) and the Maryland Department of Agriculture (MDA).  The goal (or mission) of the ANMP is to provide educational opportunities and nutrient management planning services to farmers in Maryland in an effort to reduce the amount of nutrients from agricultural operations that enter the Chesapeake Bay.

In 1998, the Water Quality Improvement Act (WQIA) was enacted and many changes were brought about which affected Maryland Agricultural community.  Most notable among the changes are the requirement for farmers to obtain and implement a nutrient management plan if they meet either of the following criteria for their agricultural operation:

  1. 8 or more animal units (1 animal unit = 1,000 of live animal weight) or
  2. $2,500 gross annual income from the agricultural operation

Each county extension office has a nutrient management advisor assigned to provide nutrient management-related services to that county's farmers.  The Caroline County Extension Nutrient Management Advisor is Craig Yohn.   He is available to write agronomic plans.  Each July, the previous fiscal year’s work (July1 – June 30) is summarized.  Nurseries and Greenhouses must use a private consultant. The Maryland Department of Agriculture maintains a Consultant List. Contact Craig at (410)479-4030 or to make an appointment. 

Extension nutrient management advisors can also provide:

  • Soil analysis for the Pre-Sidedress Nitrate Test (PSNT). From May through June, The Nutrient Management Program provides a soil testing service for producers who have used an organic source of nitrogen (manure or legume) on corn.  The Pre-Sidedress Nitrate Test measures how much of nitrogen that was applied or “grown” will be available to the plant. This soil test is conducted at the University of Maryland Caroline County Office and provides a recommendation to the producer within 24 hours or less free of charge.
  • Soil analysis for the Fall Soil Nitrate Test (FSNT). This test is conducted in the fall to evaluate the adequacy of nitrogen in the soil after the previous crop has been removed for the fall planting of small grains (wheat or barley). 
  • Other times of the year provide the Extension Nutrient Management Advisor with opportunities to provide instruction and assistance with manure spreader calibrations, keep files up to date, attend continuing education events, prepare portions of individual plans for the coming year and conduct yield goal checks.

Nutrient Management Resources

Soil Sampling Procedures

Comparison of Soil Testing Labs

Manure Sampling Procedures

Comparison of Manure Testing Labs

Comparison of Compost Testing Labs

Tissue and Soil Sampling Procedures for Perennial Fruit Crops

Comparison of Plant Tissue Labs

Pre-Sideress Nitrate Test

Fall Soil Nitrate Test

Finding Account ID Numbers

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