Maximizing Poultry Manure Use Through Nutrient Management ...
Sustainable Manure and Nutrient management for …...2019/09/03 · GRASS 2019-09-26 Erik Sindhöj,...
Transcript of Sustainable Manure and Nutrient management for …...2019/09/03 · GRASS 2019-09-26 Erik Sindhöj,...
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GRASS 2019-09-26
Erik Sindhöj, Project coordinator
Sustainable Manure and Nutrient management for reduction of nutrient loss in
the Baltic Sea Region
SuMaNu
Greener Agriculture for Sustainable Seas, Warsaw, 2019-09-26
Erik Sindhöj, PhDRISE – Research Institutes of [email protected]
Baltic SlurryAcidification
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• Why should farmers be concerned about manure?• Path towards increasing circular nutrient cycles• How can slurry acidification help?
Overview of presentation
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Manure is a resource
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Nutrient losses from manure
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Nitrogen loss from a whole farm perspective (Kai et al. 2008)
100 kg N in pig manure
N in slurry
68 kg N
Animal houses
Manurestores
Applied in field
32 kg N
16 kg N
8 kg N
8 kg N
Untreated slurryGaseous emission
Ammonia emissions represent direct loss of Nitrogen.
Reducing ammonia emissions from manure results in higher fertilizer value and reduced need for mineral fertilizer.
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Other 7%
Agriculture93%
Ammonia emissions from the EU Baltic Sea Countries was 1 081 000 t of NH3-Nitrogen in 2016
Manure63%
Mineral Fertilizersand soils
37%
Source: EEA Report 6/2018
633 000 t NH3-N
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Source: EMEP Centres Joint Report for HELCOM
Nitrogen loss from ammonia emissions in EU Baltic Sea countries
0
200
400
600
800
1000
1200
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
kt N
H3
2020
2030Reduction targets
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Closing the nutrient loop
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Farm-level nutrient balances
Nutrients to the farm:• Fertilizers• Feed• New animals• Seeds• N fixation• N downfall
Nutrients off the farm:• Animal products• Crops• Sold animals• Manure (potentially)
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Know what is in the manure
• Manure sampling
• Calculation tools for manure amount and nutrient content
• Updated national standard values
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Fertilizer planning1) Soil analysis 2) Plant needs 3) Get the most of manure 4) complement only if necessary
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NH3 + H+ ↔ NH4+
NH3 + H2O ↔ NH4+ + OH-
NH3 + H+ ↔ NH4+
NH3
Ammonia - ammonium balance
How can acidification help?
NH3
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Direct effects of acidification on slurry
Slurry pH
NH
3em
issi
on
s, k
g N
ha-1
(Jarvis and Pain, 1990)
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Overview of slurry acidification technologies (SATs)
In-house In-storage In-field
Approx. 18% of all slurry acidified in Denmark in 2016**Karen Peters, DK EPA
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Ammonia emissions from pig houses,In-house ammonia reduction 70% (Kai et al. 2008)
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Ammonia emission reduction efficiency from outdoor storages
Reductionefficiency, %
Reference
67 Petersen et al. 2014
90 Reguero et al. 2016
90 Al-Kanani et al. 1992
62 Sommer et al. 2017
59 Owusu-Twum et al. 2017
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Hours after spreading
Am
mo
nia
emis
sio
ns,
kg
N/h
a
Cattle slurry
Acidified cattle slurry
Digested cattle slurry
Acidified digested cattle slurry
Ammonia emission from field applied slurry and digestate, Rodhe et al, 2014
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Nitrogen loss from a whole farm perspective (Kai et al. 2008)
100 kg N in pig manure
9 kg N81 kg N
Acidified slurry Gaseous emission
N in slurry
Animal houses
Manurestores
Applied in field
5 kg N
1 kg N
3 kg N
68 kg N
Animal houses
Manurestores
Applied in field
32 kg N
16 kg N
8 kg N
8 kg N
Untreated slurryGaseous emission
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Fert
ilizer
equiv
ale
nt
(fe)
,kg N
fert
ilizer per
100 k
g N
0
20
40
60
80
100
120Untreated
Acidified
20012002 2003 Average
2003
----Winter wheat---Spring barley
Fertilizer equivalent of in house acidifiedslurry (Kai et al. 2008)
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Investments in slurry acidification technologies
SWEDEN
LATVIA
GERMANY
LITHUANIA
POLAND
ESTONIA
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Slurry acidification in Poland
Przybkowo pig farm in Poland ITP experimental farm in Biebrza
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Pilot scale in-storage acidification test facility
ITP experimental farm in Falenty
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Field trials
•SE 3 yrs•DE 3 yrs•EE 2 yrs•FI 2 yrs•LV 1 yr•LT 1 yr•PL 2 yrs
+
+
++
++
++
+
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Conclusions/Recommendation
• Farm nutrient (NP) balances and Fertilizer planning based on soils status, crop needs and manure composition for all fields should be standard procedures for all farms
• Farmers need advisory support for accurate planning
• Slurry acidification effectively reduces ammonia emissions and increases manure nutrient use
• Slurry acidification can be implemented on farms in the BSR
• Farmers need support/incentives to implement green technologies