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UI Extension Publications and Multimedia

Sampling Dairy Manure and Compost for Nutrient Analysis

Product Details
PNW 673
Pub. Date: 2015

Online Only

View it now (PDF) >

Testing the nutrient content of dairy manure or compost reveals nutrient value and determines the application rate, but it must be done correctly. This six-page guide shows you how to conduct a proper test, from obtaining a representative sample (summarized in a handy two-page, illustrated section), selecting a reliable testing laboratory, determining which lab analyses are needed (including total nitrogen, nitrate nitrogen, ammonium nitrogen, total phosphorus, total potassium, and solids) to estimating nutrient availability and calculating all the results.

Authors: Amber Moore, Mario de Haro-Marti, Lide Chen

6 pages


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University of Idaho Extension


Physical Address:
E. J. Iddings Agricultural Science Laboratory, Room 10
606 S Rayburn St

Mailing Address:
875 Perimeter Drive MS 2332
Moscow, ID 83844-2332

Phone: 208-885-7982

Fax: 208-885-9046



Barbara Petty