ecoferm - the circular farm
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ECOFERMThe circular farmJan de Wilt
6th December 2013Conference MANURESOURCE, Bruges
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• Groundbreaking innovations in agriculture• Foundation with own board• Main Funder: Ministry of Economic Affairs• Budget € 3.5 million per year• Evaluation every 5 years
InnovationNetwork
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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 1,0rape seed 25% 3 0,8sunflower 23% 3 0,7peas 22% 4,5 1,0beans 28% 4 1,1lupins 35% 2,5 0,9grass 12% 12,5 1,5lucerne 19% 13 2,5sugar beet leaves 12% 4,5 0,5micro-algae 50% 15 7,5duckweed 30% 25 7,5wheat 11% 10 1,1
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Kwantitatief• Basis mineralen:
• Per 1000 kalveren: 20 ton N• Per ha : 150 kg N (1 ton eiwit)• Dit vertegenwoordigt circa 130 ha
• Algenproductie:• Per ha : 15 ton, 50% eiwit, 1250 kg N/ha• Dus bijna 16 ha algen nodig.• Lysine: 6-8% (6% in sojaschroot)
• Kroos:• Per ha: 25 ton/ha, 30% eiwit, 1250 kg N/ha• Dus bijna 16 ha kroos nodig.• Lysine: 4%
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Berekening
• Netto resultaat € 69.000/jaar• Minder digestaat door mestscheiding plus algen/kroos• Minder voer aankopen (9 ton)• Meer electriciteit (30.000 kWh)• Meer water (3500 m3)
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Aandachtspunten rendement
• 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)• Hoogwaardige producten• Via raffinage