Manure Analysis Update: 1998-2010 John Peters Department of Soil Science University of Wisconsin – Madison
Introduction Knowing the nutrient content of manure is critical for nutrient management planning. New species and management categories have been established. Follow trends and update book values
Acknowledgment Data for this summary was provided by the following laboratories. – AgSource Laboratory – Dairyland Laboratory – Rock River Laboratory – UW Soil and Forage Laboratory
Laboratory Data 27,391 lab values from 1998-2010 were summarized by management (liquid vs. solid) and species Includes 14,676 liquid dairy, 6,371 solid dairy, 2,298 solid poultry, 1,568 liquid swine, 553 solid beef, and 155 solid swine samples, as well as smaller numbers of samples for other species
Manure sample numbers by region, WI (1998-2010) 1167 798 1763 641 1187 5477 1042 1053 3160 Numbers listed represent 59% of total samples where county was listed.
“Book Values” Nutrient concentrations can be estimated using “book” values for available N, P 2 O 5 , and K 2 O Testing is needed to determine if a farm is typical and to establish an individual farm “typical” value If management and feeding practices do not change, manure analysis values will not vary significantly on a farm
Manure Sampling and Testing Manure testing takes management practices into account and delivers more accurate values to use for farm specific nutrient management planning Lab analysis summaries can be used to monitor long term trends in manure nutrient content as it is affected by management changes over time
Typical total nutrient content of solid manures tested in Wisconsin. A2809 Species DM N P 2 O 5 K 2 O S % lb/ton lb/ton lb/ton lb/ton Dairy 24 10 5 9 1.5 Beef 35 14 9 11 1.6 Swine 20 14 10 9 2.7 Duck 35 17 21 30 3.9 Chicken 60 40 50 30 3.9 Turkey 60 40 40 30 3.9 Sheep 45 26 18 40 2.7 Horse 45 10 6 10 2.5
Typical total nutrient content of liquid manures tested in Wisconsin. A2809 Species DM N P 2 O 5 K 2 O S % lb/1000 gal lb/1000 gal lb/1000 gal lb/1000 gal Dairy 6 24 9 20 4.2 Veal Calf 2 15 10 25 4.5 Beef 5 20 9 20 4.7 Swine, indoor pit 7 50 42 30 2.4 Swine, outdoor pit 4 34 16 20 2.4 Swine f/n, indoor pit 3 25 23 22 4.0 Poultry 3 16 10 12 9.1
Estimated first-year nutrient availability of various manures* Species N P 2 O 5 K 2 O S Dairy, surface applied 30% 60% 80% 60% Dairy, incorporated 40% 60% 80% 60% Beef, surface applied 25% 60% 80% 60% Beef, incorporated 35% 60% 80% 60% Swine, solid surface applied 50% 60% 80% 60% Swine, solid incorporated 65% 60% 80% 60% Poultry, solid surface applied 50% 60% 80% 60% Poultry, solid incorporated 60% 60% 80% 60% * If manure has been applied to the same field at similar rates for 2 consecutive years, increase the nutrient values an additional 10%. If manure has been applied to the same field at similar rates for three or more consecutive years, increase the nutrient values by 15%.
Estimated first year available nutrient content of solid manures. A2809 Species N N P 2 O 5 K 2 O S Surface Incorp. lb/ton lb/ton lb/ton lb/ton lb/ton Dairy 3 4 3 7 1 Beef 4 5 5 9 1 Swine 7 9 6 7 1 Duck 9 10 13 24 2 Chicken 20 24 30 24 2 Turkey 20 24 24 24 2 Sheep 7 9 11 32 1 Horse 3 4 4 8 1
Estimated first year available nutrient content of liquid manures. A2809 Species N N P 2 O 5 K 2 O S Suface Incorp. lb/1000 gal lb/1000 gal lb/1000 gal lb/1000 gal lb/1000 gal Dairy 7 10 5 16 2 Veal Calf 6 8 6 20 2 Beef 5 7 5 16 3 Swine, indoor pit 25 33 25 24 1 Swine, outdoor pit 17 22 10 16 1 Swine f/n, indoor pit 13 16 14 18 2 Poultry 8 10 6 10 5
Comparison of dairy manure summary results with existing book values lbs/ton lbs/1000gal 35 6,371 solid and 14,676 liquid samples 30 25 20 15 10 5 0
Comparison of liquid swine manure summary results with book values Swine-finish (indoor) Swine-finish (outdoor) 112 samples 418 samples 55 50 45 40 35 30 25 20 15 10 5 0
Comparison of solid swine manure summary results with book values lbs/ton 35 30 155 solid swine samples 25 20 15 10 5 0
Comparison of solid chicken manure summary results with book values chicken broiler chicken layer 90 66 broiler and 279 layer samples 80 70 60 50 40 30 20 10 0
Comparison of solid turkey manure summary results with book values turkey 55 1240 turkey samples 50 45 40 35 30 25 20 15 10 5 0
Comparison of liquid poultry manure summary results with book values Duck Duck 25 416 samples 20 15 10 5 0
Comparison of solid sheep and goat manure summary results with book values Sheep Goat 55 50 26 sheep and 105 goat samples 45 40 35 30 25 20 15 10 5 0
Long term trends in N content of dairy manure Liquid Dairy N Trend Solid Dairy N Trend 16 30 14 25 12 20 10 15 8 6 10 4 5 2 0 0
Long term trends in P content of dairy manure Solid Dairy P 2 O 5 Trend Liquid Dairy P 2 O 5 Trend 9 12 8 10 7 6 8 5 6 4 4 3 2 2 1 0 0
Long term trends in K content of dairy manure Liquid Dairy K 2 O Trend Solid Dairy K 2 O Trend 25 16 14 20 12 10 15 8 10 6 4 5 2 0 0
Long term trends in P content of liquid swine manure Liquid Swine P 2 O 5 Trend 30 25 20 15 10 5 0
Long term trends in P content of solid poultry manure Solid Poultry P 2 O 5 Trend 60 50 40 30 20 10 0
Liquid dairy manure nutrient content by region, WI (1998-2010) State Avg 21 8 28 19 11 25 25 25 9 8 23 22 25 23 11 22 9 19 8 20 18 21 20 24 Nitrogen 8 7 9 P 2 O 5 18 18 K 2 O 20
Solid dairy manure nutrient content by region, WI (1998-2010) State Avg 11 6 13 10 7 10 14 10 5 4 10 10 13 12 10 5 6 5 5 14 8 11 10 12 Nitrogen 7 6 P 2 O 5 7 K 2 O 11 9 12
Long term trends in P levels in liquid dairy manure vs. TMRs P2O5 in Liquid Dairy Manure %P in TMRs 12 0.6 10 0.5 P2O5 lbs/1000 gal 8 0.4 %P 6 0.3 4 0.2 2 0.1 0 0
Long term trends in P levels in solid dairy manure vs. TMRs P2O5 in Solid Dairy Manure %P in TMRs 9 0.6 8 0.5 7 6 0.4 P2O5 lbs/ton 5 %P 0.3 4 3 0.2 2 0.1 1 0 0
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