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ECOFERM
The circular farm
Jan de Wilt
6th December 2013
Conference MANURESOURCE, Bruges
InnovationNetwork
• Groundbreaking innovations in agriculture
• Foundation with own board
• Main Funder: Ministry of Economic Affairs
• Budget € 3.5 million per year
• Evaluation every 5 years

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ECOFERM

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Algae tubes

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Alternatives: protein yield/ha
product
protein content yield (t dm/ha) protein production (t/ha)
soy bean
40%
2,5
1,0
rape seed
25%
3
0,8
sunflower
23%
3
0,7
peas
22%
4,5
1,0
beans
28%
4
1,1
lupins
35%
2,5
0,9
grass
12%
12,5
1,5
lucerne
19%
13
2,5
sugar beet leaves
12%
4,5
0,5
micro-algae
50%
15
7,5
duckweed
30%
25
7,5
wheat
11%
10
1,1
Kwantitatief
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Basis mineralen:
•
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Per ha : 150 kg N (1 ton eiwit)

•

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Per 1000 kalveren: 20 ton N
Dit vertegenwoordigt circa 130 ha

Algenproductie:
•
•

Dus bijna 16 ha algen nodig.

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Per ha : 15 ton, 50% eiwit, 1250 kg N/ha
Lysine: 6-8% (6% in sojaschroot)

Kroos:
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Per ha: 25 ton/ha, 30% eiwit, 1250 kg N/ha

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Dus bijna 16 ha kroos nodig.

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Lysine: 4%
Berekening

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Netto resultaat € 69.000/jaar
•
Minder digestaat door mestscheiding plus algen/kroos
•
Minder voer aankopen (9 ton)
•
Meer electriciteit (30.000 kWh)
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Meer water (3500 m3)
Aandachtspunten rendement
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Temperatuurregeling kas boven schuur
(ventilatie)
Oogstsysteem kroos
Kroos en algenmanagement: specialisme
Geleidelijke uitbreiding kroos en algenteelt
Aandacht gezondheid kalveren
Alternatieve afzet kroos en algen
overwegen (verbetering inkomsten)
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Hoogwaardige producten
j.g.de.wilt@innonet.agro.nl
www.innovatienetwerk.org

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