April UPDATE to Manure Spreading Advisory #2 2014: South Coast Region

April 1, 2014

Do you know the nutrient content of your manure?

  • You can find a lab that will analyze your farm’s manure for total nutrient contents that will vary somewhat from the averages (Table 1). Find a list of laboratories here: http://goo.gl/ntuZqP
  • A fraction of the total nutrients has fertilizer value in the year of application, particularly in the case of nitrogen. Another fraction has fertilizer value in subsequent years. For general information about how large the fractions are, see Question 4 in the Q & A document here (http://goo.gl/rqdEjz).

Table 1. Average nutrient contents (% as-received) of some manures. The Ministry of Agriculture and its partners are currently updating these values with local data to provide better reference information.

Manure Type

Total Nitrogen (N)

Total Phosphorus (P)

Total Potassium (K)

Liquid dairy >98% water (very watery)




Liquid dairy 95-98% water (quite watery)




Broiler 25% water




Hog 93% water (covered pit)




Hog 98% water (uncovered pit)





Producers are responsible for decisions regarding manure spreading. Legislation gives no specific dates for manure spreading but it does not allow for manure to be spread in a manner that causes pollution.

 This Update is produced by government, in partnership with industry, to provide guidance to farmers regarding the Agricultural Waste Control Regulation and the ENVIRONMENTAL MANAGEMENT ACT. If a discrepancy arises between this document and the legislation, the legislation takes precedence. Following this advisory does not relieve anyone from their obligations under the LEGISLATION. The Province of British Columbia does not guarantee the accuracy or completeness of the information referenced here from legislation, and in no event is the Province liable or responsible for damages of any kind arising out of its use.

 For further information, please contact: BC Ministry of Agriculture
David Poon, P.Ag                                                      604-556-3098
Geoff Hughes-Games, P.Ag                                  604-556-3102

For questions of a regulatory nature:  BC Ministry of Environment
George Rushworth, P.Ag                                604-582-5211

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